Which growth bag is suitable for growing vegetables? Compared with 3, using plastic growing bags saves money and trouble
Many greenhouses are replaced by soilless cultivation mode, planting fruits and vegetables, not only to save artificial, but also to solve the problem of soil salinization. Some farmers see that we use plastic bags as planting trough, asked why not non-woven bags? Isn't soilless culture better this way?
Soilless cultivation of fruits and vegetables, although all are planting bags, but we do not use non-woven bag as a planting trough, but the use of black and white plastic bags. For several reasons:
- 1.soilless cultivation of vegetables, is to use a substrate instead of soil, in order to improve air permeability, conducive to root growth, such as planting bags can be used earthworm dung, cow dung, Rod and so on. Non-woven bag permeability is also very good, but after excessive permeability, filled with substrate after watering, it is difficult to water, the bottom and all around will be water seepage.
Especially in the vegetable planting after watering, can obviously feel the non-woven cloth soilless culture shortcomings. If the substrate is not uniform, some roots can not absorb water and die, and the rate of dead seedlings is high. Some friends say, high rate of water and fertilizer loss, I frequent watering and fertilization on it? However, if watering and fertilizing are too frequent, the salt content in the substrate will increase, and the root will be injured easily, which is not conducive to the growth of the seedling root system.
The plastic planting bag has good water-holding capacity, and the open part of the upper part can meet the requirements of the root system for air permeability. The air permeability of the substrate and the water holding capacity of the planting bag, this combination of planting vegetables is reasonable, reduce the loss of water and fertilizer, conducive to the growth of vegetables. Even if over-watering, the lower part of the drainage hole will be excess water discharge, do not exist after the root was flooded oxygen rotten roots.
- Soilless cultivation of vegetables, root system is more developed. When using non-woven bag, if the root system after pricking out exposed to the surface, strong light will also hurt the root. But the plastic bag has black and white both sides, both can avoid the light, prevents the wound root, but also has the heat preservation function. From this perspective, black-and-white plastic growing bags are suitable for growing vegetables.
- 3.from the planting cost, non-woven bag is higher than plastic bags. Plastic plastic bags used in the greenhouse is an investment, can be used more than one crop, planting fruits and vegetables can be. Generally 1,000 bags per mu of land, wait until the next crop planting, as long as there is no damage can continue to use, such as the end of the tomato, after the seedling treatment, before planting melon. Therefore, the overall cost is relatively low.
Many friends think that soilless cultivation with bags as planting trough, what kind of bags can be, in fact, there is a difference between them. If the wrong choice, not only will increase the planting and artificial costs, but also affect the growth of vegetables. Whether the input cost or planting effect, the use of plastic bag is better than non-woven bag.