Why is choosing the right backpack so important for students? Because it affects their physical health and learning efficiency. Whether you are a parent looking to choose a backpack for your child, a retailer hoping to find the best products, or simply someone selecting a backpack for yourself, as long as you want to understand student backpack sizes, this comprehensive guide will tell you everything you need to know about it.
How Should Students Determine the Right Size for A Backpack?
The size of a student's backpack should be chosen based on their height, body type, and growth patterns. Students of different ages and heights have different appropriate backpack sizes.
How to Measure:
Most of the backpack's weight is supported by the core and glute muscles, so ensuring proper support from the backpack is key.
For optimal support, the backpack should sit in the middle of the shoulder blades. To find the correct width, measure the distance between the shoulder blade spines and add 1 or 2 inches. For the correct height, the top edge of the backpack should be parallel to the shoulders, while the bottom edge should remain above the waist. The overall weight should be as close to the body’s upper back center as possible. Measure from the shoulder line where the straps sit down to the navel to determine the appropriate height for your child's backpack.
If there is a chest strap, its position should be level with the child's armpits. The waist belt helps bring the backpack closer to the back, distributing the weight more evenly over the hips and pelvis, reducing the pressure on the spine and shoulders.
Most backpack retailers use liters(L) as the unit when describing size, which refers to the volume or capacity of the backpack, not its external dimensions. Of course, some may use cubic inches (in³) as units. You can scroll to the end of the article to see a conversion table for liters and cubic inches.
Backpack Capacity Guidelines for Children of All Ages
For students, backpack sizes ranging from 18L to 34L are quite common.
10-24L Backpacks
Backpacks under 15 liters are considered compact and are more suitable for preschool children. Backpacks from 18L to 24L can generally accommodate an 11''-13'' laptop and some basic items, making them suitable for elementary students who have a certain amount of books and electronic devices to store.
24-30L Backpacks
However, if you want to fit a lunch bag, binder, or a larger laptop, you might consider a backpack of 24L or more. Backpacks in the 24-26L range are classified as medium-sized and are the most popular backpack capacity among students, generally accommodating a 15-inch laptop, A4-sized notebooks, books, a folding umbrella, a regular water bottle, a jacket or sweater, and some snacks.
30L+ Backpacks
Backpacks with a capacity of over 30L are considered medium or large backpacks. If, in addition to the previously mentioned 15.6-inch laptop and A4-sized books, you also need to carry a full set of clothes and shoes for a change, then a 32-34L backpack would be quite suitable.
However, knowing the liters isn't enough to determine if a laptop will fit; it also depends on the specific length, width, and height of the backpack, as liters only indicate the volume of items it can hold. You can find a reference for common laptop sizes and corresponding backpack sizes at the end of the article.
Weight Limits
For adults, the size of the backpack depends on the amount of items that need to be carried. However, for children in their growing phase, an overly heavy backpack can increase pressure on the lumbar spine and spine. Relevant scientific organizations recommend that the weight of a backpack better not exceed 5% to 10% of a child's body weight, and should not exceed 15% at most.
If heavy items need to be carried, a wheeled backpack is a better choice, as it reduces the weight on students' backs and shoulders, helping to prevent back pain and long-term posture issues. This is especially beneficial for children with long commutes to school or those who frequently carry heavy items.
Tips
1) While focusing on external dimensions, it is also important to pay attention to the internal structure and distribution. To meet the needs of students, a typical backpack should include features such as a main compartment, separate pockets, a front zip pocket, and side pockets.
2) Avoid carrying the backpack on one shoulder only. Studies show that using a single shoulder can increase neck pain due to posture changes and alter walking patterns.
3) For students who may need to carry more items, a backpack with a chest strap or waist belt can help evenly distribute the weight and reduce pressure on their shoulders.
Conversion Table for Liters and Cubic Inches
Backpack Sizes
Liters(L)
Cubic Inches(in³)
Small Backpack
15 - 24
915 – 1465
Medium Backpack
24 - 35
1465 – 2135
Large Backpack
30 - 45
1830 – 2746
Common Laptop Sizes and Corresponding Backpack Sizes
Laptop Sizes and Backpack Sizes
13-inch Laptop
15-20 liters
30cm x 20cm x 2.5cm
15-inch Laptop
20-30 liters
36cm x 25cm x 2.5cm
17-inch Laptop
30-40 liters
40cm x 28cm x 3cm
Ensure the height is greater than the laptop height, the width is sufficient to accommodate the laptop.
When tomorrow turns in today, yesterday, and someday that no more important in your memory, we suddenly realize that we are pushed forward by time.This is not a
How to choose the right pet bag?
It’s a good plan to take pet on holiday, but it’s not a simple matter. To prevent pet from biting people or other accidents, many pet owners will not only wear a pet collar for them, but also buy a pet carrier bag for their pet.
So how to choose a pet Carrier bag?
When choosing a pet bag, you need to pay attention to the following aspects:
☆Size
First of all, the appropriate size is very important. it is not that the bigger the pet bag, the better, because if the size is too large, when we are carrying and walking, the pet will sway inside, which will make them uncomfortable.
☆Material
The pet bag should be made of lightweight, sturdy, foldable, and easy-to-clean material, so that we can reduce the burden on the owner when we take the pet out, and it will not look too heavy and the owner will not be tired.
☆Permeability
Ventilation is very important for a pet bag. Pet friends also need to breathe. No matter which direction their heads are facing, they need to ensure that there are sufficient ventilation holes for ventilation.
☆Security
Choose a pet bag with a harder apprearance,which will help prevent the pet from being squeezed.The privacy of the pet bag is also very important,the feeling of being watched by others is not good.
☆Comfort
Try to choose round or oval pet outing bags, so that the pet will not be squeezed inside, avoid collisions, and make it more comfortable for the pet to stay inside.
☆Portability
A foldable pet bag It is also easy to carry, so when the owners choose bags, they can't just choose the ones that look good, but the important thing is to be convenient for themselves.
Are your Christmas gifts ready?
Christmas is the best time of the year. On this day, we will give gifts to loved ones. Although we love to give gifts, sometimes it is a bit difficult to find the perfect Christmas gift. This year’s Christmas season has already begun. Are your Christmas gifts ready? If you are still worrying about Christmas gifts, you might as well take a look here, maybe Chaumet can give you some inspiration suggestions.We have compiled a gift guide that contains gifts for everyone on your list.
The outdoor enthusiasts on your list will appreciate these products.
The tennis enthusiasts on your list will love these products.
The fitness enthusiasts on your list will love these products.
The newborn moms on your list will love these products.
The owner of cute pets on your list will love these products.
The end and the beginning of a year are always mesmerizing and looking forward to. The end does not only mean farewell, but also an expression of gratitude. I am grateful for my hard work in the past year, and love myself even more in the new year. Grateful to those who are still by your side. The past year has been so happy because of them,hope this list of gifts can inspire you.
Diaper Bag Selection Guide
For many novice mothers, they are really nervous and excited when shopping for maternal and child products. There are many unexpected products that I have never heard of. There are many recommendations on the Internet, and those that are not suitable can only be bought for idle dust accumulation.
Today, let’s talk about mommy bags that moms must go out. First of all, the mommy bag is functional, good-looking is secondary, and easy-to-use is the most important!
"How to choose?"
Take your baby out alone for a short time. If you are only going for a short walk like a short walk, you should bring a thermos, wet wipes, bib, baby bottle, diapers, etc.
If you take your baby out for a long time, such as vaccinations, visits, etc., which take several hours or even a day, you need a baby bottle, water bottle, dry and wet tissues, thermos, bib, diapers, and even complementary food, tableware, etc.
Therefore, our requirements are:
* It must be able to be installed, and the importance of the bag is light!
* Separation design is reasonable, and clear at a glance, easy to find things!
* The standard features must have: such as waterproof and anti-fouling, can be hung on a stroller, and have an insulation layer.
Sum up so much, here I want to recommend a mommy bag that can meet all needs.
1.Large capacity,light weight
Baby moms need to bring a lot of things with their babies, such as diapers, baby bottles, wet wipes, etc.... With this mommy bag, these problems can be easily solved~ It has a large capacity, diapers, complementary food, and a changing pad,Install whatever you want, and the entire package is only 0.86kg.
2.Multi-compartment design
Main bag, wet and dry separation bag, divider bag, diaper bag, this three-in-one mommy bag is not just a bag, it is also a portable crib, you can think of it, this bag has it, configuration Everything is available.
3.Waterproof and dirt-resistant
Its anti-fouling ability comes from its good fabric! The fabric of this bag is composed of 3 layers of safe anti-fouling and waterproof materials, which is equivalent to a layer of protective film on the surface.
Use mineral water bottles to make a backpack?
Plastic bottles, plastic bags, these ubiquitous plastic products provide us with a lot of convenience in our daily life, but they also cause serious pollution to the environment due to people's abuse of plastic products. The problem of single-use plastic pollution has become an important environmental pollution problem that is hugely harmful and worthy of global attention. In this era of serious plastic pollution, how to reduce the use of plastic products or how to make reasonable use of plastic waste will be one of the hurdles that we must overcome on the road to sustainable development.
Low-carbon, energy-saving, green development, and reducing the use of plastic products. Chaumet Bags start from "bags" and carry environmental protection on the body. Chaumet launches a series of backpacks made of environmentally friendly RPET fabrics. The fabrics are all processed from recycled waste plastics. Using such environmentally friendly fabrics to make backpacks, while enjoying the convenience brought by the backpack, you can also make a contribution to environmental protection.
Chaumet Bags interprets the development concept of "low-carbon, energy-saving and green development" with actual products, and calls on all friends to save resources and protect the environment with practical actions.
What is REPT fabric?
RPET fabric, RPET fabric is a new type of recycled environmentally friendly fabric, its full name is Recycled PET Fabric (recycled polyester fabric), so it is also called recycled PET fabric. Its raw material is extracted from recycled mineral water bottles and Coke bottles after inspection The RPET yarn made by separating-slicing-spinning, cooling and collecting the silk, commonly known as Coke bottle environmental protection cloth.
The fabric can be recycled and reused, which can save energy, oil consumption and reduce carbon dioxide emissions. Every pound of recycled RPET fabric can save 61,000 BTU of energy, which is equivalent to 21 pounds of carbon dioxide. After environmentally friendly dyeing, environmentally friendly coating, and calendering, the fabric can also pass the testing of MTL, SGS, ITS and other international standards, including phthalates (6P), formaldehyde, lead (Pb), polycyclic aromatic hydrocarbons, Nonylfen and other environmental protection indicators have reached the latest European environmental standards and the latest American environmental standards. Because it is a new type of green renewable environmental protection fabric, its low-carbon source has made a great contribution to conserving petroleum resources and protecting the ecological environment.
New pattern design of pet bag is coming!
Design process of surface accessories
There are many design methods of surface accessories used in bag design, among which embroidery, printing, and engraving all require pattern design.
pattern design
The motifs are mainly divided into two categories: natural scenery and man-made objects, and there are realistic, freehand, deformation and other expression techniques. According to the purpose of use and beautification, the designer designs through artistic conception according to materials and combined with technology, technology and economic conditions.
Design patterns should not only be novel in subject matter and flexible in art, but also combined with style structure and technological factors. The pattern design should pay attention to the form of its organization and arrangement, and it is also suitable for the needs of the pieces, such as the multi-directionality of the pattern and the pattern splicing of the pieces.
At the same time, it should also be designed according to its position on the product, such as the design of corner patterns, bag cover patterns, etc.
As far as patterns and tattoos are concerned, their composition forms mainly include continuous patterns, individual patterns, scattered patterns, and individual patterns have symmetrical, balanced, central, and free styles.
Scatter print pattern design
In the design of bag printing patterns, scattered patterns and continuous patterns are more commonly used. The difference between them lies in the way in which the graphic elements are arranged in different frames.
Scattered pattern, as the name implies, is a pattern formed by the layout of scattered pattern elements according to the principles of visual evaluation and aesthetics;
The continuous pattern is based on the organization rules of order and repetition, and the unit pattern is arranged repeatedly to form an infinite loop pattern.
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From Baidu and the book "Fashion Bag Design and Production Process" Li Chunxiao
Mountain biking backpack selection guide
Mountain biking is a great way to get in shape and enjoy the outdoors. Mountain biking rides usually take several hours to complete, sometimes even days, depending on the type of adventure you are on. Because of this, it is important to have the right equipment in order to have a great experience.
One of the most important pieces of mountain biking equipment is a backpack. But there are so many mountain bike backpacks to choose from on the internet, and it's always overwhelming to face so many choices.
Today we will talk about how to choose a good mountain bike backpack.
A good mountain biking backpack should have what conditions
If there's one thing that's most essential for your trip, it's water. Ideally, you'll also want to have some basic trail fixes in your mountain bike backpack, such as a multi-tool, tire plugs, a hand pump and some snacks, but water is really the most essential item. Even if you're just out for a ride, it's a good idea to make it a habit to always carry water.
Therefore, the best mountain bike backpack should have plenty of capacity, the ability to carry a water bag, storage features, be lightweight, and be comfortable. These features can help mountain bikers bring what they need efficiently while improving performance.
Recommend a mountain biking backpack
Combining the above conditions, I recommend this mountain bike backpack from Chaumetbag that can meet all your needs.
*Large capacity
With a large capacity of 40L, the water and tools you need to bring on a ride can be easily equipped.
* Hydration system
Carryable water bag makes it easy to drink water without stopping. Simply sip water from a mouthpiece or bite valve attached to the compartment used to hold the water.
*Storage function
Multiple multifunctional pockets to equip a helmet and trekking poles, as well as a laptop. Some riders may also want to carry rain gear, pads, layers or other protective gear, and this mountain bike backpack can accommodate all of them.
*Lightweight
Riders should try to reduce the weight on their backs, so be sure to choose a lightweight backpack. This backpack weighs less than 1kg and will allow the rider to reduce the weight on their back during the trip.
*Comfort
Ventilation: This pack's ample back ventilation helps prevent heat and sweat buildup during the ride, ensuring that you stay cool and comfortable even in hot weather.
Strap: 2 anchor points on the lower abdomen and chest to hold the pack in place. And it comes with external shoulder straps to help hold your protective gear in place, such as helmet, elbow pads and knee pads.
Waterproof: Made of ripstop fabric, it is waterproof and resistant to wear and tear, so you can ride your bike in wet conditions.
*Details
Helmet attachment: Although you already wear a helmet during your ride, some people prefer to keep their helmet on their backpack. This pack has Helmet attachment made of elastic mesh pockets that make it easy to stow your helmet when you stop for a break.
Reflective details: If you typically ride before dawn, after sunset, or in unexpected weather, reflective details and bike light attachments are a critical safety feature. Reflective details help you shine in the absence of daylight when a vehicle approaches you to ensure drivers see you.
Laptop Compartment: For the mountain biker who commutes to work, a laptop compartment protects your gear. This backpack's compartment can hold laptops up to 15 inches.
Tool Roll: This mountain bike backpack comes with a tool roll to easily keep your tools in place.
The vast majority of people don't need to think long before buying something as simple as a Lunch Bag. As long as it can hold food, it's a good thing, right?
If you're a climber, hiker, ranger or military member, you know the importance of having the perfect Lunch Bag. When you're constantly in the field or working in the roughest terrain, it sounds like a blessing to have a tactical lunchbox that can store all your food and drinks and keep them from spoiling.
The Tactical Lunch Bag is designed to facilitate your adventures, journeys or tough jobs where you may no longer be able to stop to replenish your food stocks and where the temperature may spoil your food. But with this lightweight, easy-to-carry Lunch Bag, you can easily solve your mealtime challenges.
It is even available for leisure travelers who enjoy camping, hiking and exploring wild mountains or jungles.
If your idea of "fun" includes summiting mountains, hiking over rugged terrain and crossing raging rivers, you might want to consider a tactical Lunch Bag for yourself.
Let me suggest a tactical lunchbox for you now!
Tactical Lunch Bag
【Material】 This Tactical Lunch Bag is made of military grade, rugged polyester material. This material should be able to withstand rough handling and exposure to the environment, and is not susceptible to wear and tear.
【Size】10 "W*13 "L*9 "H, large capacity, can hold 18 cans or 12 bottles of drinks.
【Compartment】 with separate compartment for storing snacks, condiments and various other food items. The lunch bag comes with side pockets on both sides for storing mugs.
【Shoulder Strap】The ease of carrying is definitely the most important feature in your tactical Lunch Bag. Equipped with adjustable, durable shoulder straps so that you can free your hands for tough climbs or carry other bags.
https://www.chaumetbag.com/leakproof-tactical-lunch-bag-fitness-insulated-lunch-box_p1070.html
How to choose a students backpack?
A backpack is a must-have item for your school closet - it will accompany you to class, the gym, late night library marathons and early morning coffee. So it's important to find one that carries everything you need for the whole day, and is comfortable, affordable and stylish.
Finding the right backpack size
The first step in buying a students backpack is choosing the right size. A larger bag may hold more supplies and gear, but if it's overstuffed, it may lead to back pain and other problems. If it's too small, you may not have enough room. The best thing to do is try the bag on to make sure it's the right size, compliments your body type, and feels comfortable.
Pockets and Features
Think about how much gear you plan to carry and whether you need specific pockets and features. If you have a laptop, you may need a backpack with a laptop sleeve. Some laptops are bigger, so you'll want a bag that fits you.
Having a laptop sleeve in the main pocket is great, but having an extra pocket in the front is more practical. These pockets are great for storing small items like lip balm, house keys and USB drives. Consider organization and function; look for features that make your gear easy to find.
Some bags will have a side pocket or mesh side pocket to hold a bottle. Easy access to water can come in handy when you're on the go.
Padded shoulder straps and back
If you have a long school commute, you need a comfortable backpack. Padded shoulder straps and a padded back help eliminate stress. The durability of the shoulder straps will determine how much weight you can carry in the backpack. It is best not to over pack or you may damage the bag.
For extra support, some larger backpacks come with a waist belt. These may come in handy if you are looking for extra support. They can also take some of the weight off your back that can lead to lethargy and poor posture.
Backpack VS Shoulder Bag
Carrying a backpack in warm weather is not ideal and can be a hassle on a busy commute. Busy buses and subways are why some people prefer cross body bags or shoulder strap bags. They can be easily removed and reduce sweat buildup.
While convenient, these bags don't provide optimal postural support. Carrying a heavy bag on one shoulder all day can put undue stress on your shoulders and slightly alter your balance. For some people, this may be a good reason to choose two shoulder straps.
Colors and patterns
This one is more subjective, but worth considering. It's always fun to have a funky backpack that allows your personality to shine and stand out from the crowd. Wild colors and crazy patterns are perfect for clothes because you can change them often. Backpacks are more of an investment, so if your fashion choices tend to change quickly, maybe stick to something more neutral.
You may also want to consider the fact that lighter colors get dirty more easily, so if you're the type that likes a clean bag or likes to get dirty, we recommend darker shades and colors.
How accessible is it?
If you carry essentials with you, make sure your backpack is open wide enough to access them. Being able to pick up your laptop without taking out all your books will save you a lot of time. In most cases, a top-loading backpack or one with a full zipper is easier to access.
Pack It, Zip It And Go!
Once you’ve settled on a backpack that fits all your needs and looks great, you’re ready for back to school!
Newest Design: Waterproof Dry Duffel Backpack!
Chaumetbag newly designed 3 waterproof dry bag, very suitable for camping, hiking or kayaking and other outdoor sports, do not miss them!
25L Waterproof Backpack Dry Bag
【Durability】 Dry bag made of PVC tarpaulin,durable enough to be strapped to a boat or bike. Designed to withstand harsh environments.
【Suitable capacity 】The 25-liter capacity can hold a thick winter wetsuit, gloves and boots. It can hold a small sleeping bag and some clothes.
【Details 】With D-rings and stitched webbing loop-shaped lashing points, providing dedicated attachment points, this provides a little assurance that your bag will stay in place.
60L Roll-top Dry Duffel Backpack
【Waterproof】Made of high quality, heavy duty, strong and easy to maintain 500D lined PVC tarpaulin, 100% waterproof!
【Large Capacity】 With a large capacity of 60L and a weight of 2kg, it is suitable for long trips because it can hold more equipment. With two straps, it can be carried as a backpack. And highly appreciated by motorcycles because it is not too big or too small and easy to install.
【Details】 With 4 side carry handles, two sling hanging points, sturdy Duraflex 360 swivel buckle and slide buckle, providing multiple carrying options. With a waterproof front pocket for cell phones, it is easy to protect your electronic devices even on the go.
80L Waterproof Dry Backpack with 4L small Dry Bag
【Waterproof & durable 】Made of highly waterproof and durable rigid material 500D tarpaulin material. Mainly used for water sports and outdoor activities.
【Combination of 1+1】 80L plus a large capacity of 4L. 80L large dry bag for four thick wetsuits or three wetsuits, or all the food you need for a few days of kayaking, as well as a small camping gas stove and some utensils. If you just pack it with your clothes, it's enough for a week-long trip for one person or a weekend trip for two. 4L small dry bag for all your smaller personal items (phone, wallet, keys, snacks, first aid ......), or a DSLR with two lenses or a Mavic Pro-sized sized drone.
【Details】 The Waterproof zipper closure design allows you to quickly pick up and place items and prevent water from entering the interior, very easy to use and comfortable.
In Conclusion
Choosing a good dry bag will protect all your gear from water and make your adventures more enjoyable because you won't have to worry about your stuff getting wet!
With the help of chaumetbag, you should be able to choose the best dry bag for your next outdoor excursion!
So go ahead and have fun!
How to Use Growing Bags for Plants
Planting bags are plastic or fabric bags for growing shallow rooted plants. They are ideal for balconies or small gardens where space is at a premium. Grow bags are also great because they are reusable and produce very little waste. To grow plants, prepare the bags for your chosen plants, install the plants and take care of the bags so that you have healthy plants throughout the season.
Part 1 Getting Your Grow Bag Ready
Buy your grow bags. You can buy grow bags at plant shops or home improvement shops. You can choose between plastic or fabric grow bags, but fabric grow bags usually require more watering and are more practical than plastic bags. Choose a bag according to the size of the roots. Don't buy a very large bag unless you are growing something large.
For example, if you are planting something as large as a grapefruit tree, you will need a 50 gallon bag.
Line the grow bag with clay pebbles to aid drainage. If the type of potting mix you're using doesn't drain easily, you may need to place a layer on the bottom of the grow bag. You can line the bag with clay pebbles or chunks of perlite. Put enough pebbles or perlite on the bottom of the bag to cover it completely.
Use at least 1 inch (2.5 cm) of pebble or perlite in the bag.
Add soil to the grow bag. You can use garden soil similar to compost, compost made specifically for containers, or you can make your own mix. The best mix for a grow bag is 1/3 moss, 1/3 compost mix (such as chicken manure or mushroom compost), and 1/3 vermiculite (a moisturizing mineral). Fill the grow bag almost completely, leaving a few inches (5 cm) of space at the top of the bag.
If there is nothing in the bag, loosen it and shape it. Once the soil is in the bag, shake it and knead it like a pillow to loosen it. Then, shape the bag into a low hump (hill shape). This is to ensure that the soil is spread out evenly.
part 2 Adding Plants
Choose plants with shallow roots for best results. Shallow rooted plants are ideal in bags as they won't grow badly from the bottom of the bag. Good choices include tomatoes, capsicum, eggplant, zucchini, cucumbers, strawberries, green beans, lettuce, potatoes, herbs, and flowers.
However, if you purchase a very large grow bag, you can grow larger items such as trees.
Place the bag where you want to grow your plants. Grow bags are easy to move and can be placed in a variety of places. They can be placed on the balcony, outside in the garden, or in the greenhouse. When choosing a location, consider the amount of sunlight and warmth your plants need.
Scoop out the soil to make room for the plants. Scoop out the soil with your hands or a small shovel. Make sure you have scooped out enough soil so that the entire roots of the plant can be covered, allowing it to be planted.
Install the root ball in the soil. Insert the root ball where the soil has been dug out. Make sure the entire root ball is covered in soil. Then, cover the top of the root ball with some of the soil you dug up.
Part 3 Caring for the Plants
Water the bag frequently. Grow bags generally require more water than potted plants. Check the condition of the grow bag daily. Water it whenever you see the soil drying out. Plastic heats up the peat mix considerably, so keeping the soil moist is critical to the success of growing plants.
Cloth bags generally require more frequent watering than plastic bags.
Install a tap water system. Keeping grow bags well-hydrated can be difficult, so a running water system is often beneficial. One option is to install a drip system. Essentially, a drip system is a container that releases water into the soil slowly and continuously. Alternatively, you can place a container under the grow bag and fill it with water.
If you put a deep container under the grow bag, you may need a container to catch the overflow.
Fertilize heavily nourishing plants. Replanted plants refer to plants such as corn, tomatoes, and cabbage crops. You can buy fertilizer or make your own natural fertilizer. You can make your own fertilizer with Epsom salt and eggshells, vermicompost and compost tea. Spread a thin layer of fertilizer on top of the soil. If you leave a few inches (5 cm) at the top of the bag, there should be room left. Fertilize your plants at least once a week.
When the crops have finished growing, reuse the soil. If the soil still looks healthy, you'll be able to reuse it the next season. Soil can be retained and reused for 2 to 3 seasons as long as you amend it with compost, organic matter, or fertilizer. Even the bag can be used for another season if you wash the bag, let it dry, and store it in a dry place until the next growing season.