Organic vegetables, which are now very popular, have become more demanding in recent years as people's standard of living has improved, organic vegetables have become more popular and have good market prospects in terms of nutrition and safety, and the following mini-editor has told us about the techniques of organic vegetable growing in large sheds and green pest control methods。
Technology for organic vegetable cultivation in large sheds
1. 1 selection of suitable vegetable varieties
High-yield organic efficient vegetable varieties are selected. There are now many genetically modified vegetables and seedlings, which are not professionally identified and quality tested, and growers should choose non-genetic varieties. The choice is better for the seedlings, and the roots grow more fully. The first choice is for seedlings that are not treated with medicines, which are tested and tested successfully by the relevant institutions, to ensure the safety and reliability of vegetable production in the shed。
1. 2 selection of suitable planting grounds
Since solar radiation is the main source of warming of the vegetable sheds, cultivation bases should choose where the sun is well-lighted, so that the crops can fully receive the sun, and light cooperation should be used to promote the growth of plantations, avoiding the selection of mountain vents, footsides and low-lying areas as vegetable fields for the sheds. Generally, there are three aspects to the land: 1) the choice of a more complete piece of land, and there are no other conventional vegetables in the land, which would better ensure balanced growth of organic vegetables in the shed. 2) separate organic vegetables from ordinary vegetables and, in order to divide them more clearly, also establish visible signs at the dividing line. (3) when planting organic vegetables, it is important to focus on the planning and management of the surrounding land, and some organic land should be set up around vegetable plantations, which cannot be cultivated at will. It is only by doing the above three things that sustainable development of the stock of organic vegetables can be better achieved。
1. 3 vegetable culture management
Vegetable management is also one of the key factors in organic vegetable cultivation in large sheds, and the importance of organic vegetable cultivation management should be fully recognized if the quality and efficiency of organic vegetable cultivation is to be improved. Development techniques need to be kept up to date and modern management equipment introduced in a timely manner。
1. 4 reasonable fertilization
There is a high demand for fertilizers for large-scale organic vegetables, which necessitates strict control of fertilizer volumes and types by the fertilizer operator during its use. The selection of organic vegetable fertilizers should be preferred to pure natural fertilizers, such as animal manure, plant corruption, etc., which not only are environmentally friendly but do not produce large amounts of toxic substances harmful to human health. Scientificly sound fertilization is the key to increasing the production of organic vegetables in the sheds, and it is important to eliminate the use of synthetic chemical fertilizers in the selection of fertilizers, but it is possible to select specialized fertilizers that are certified by professional bodies, and only scientific fertilization can ensure the integrity of organic vegetables。
2 green pest control techniques for vegetable sheds
2. 1 green pest control technologies
2. 1. 1 light induction
Using insect lightness, the production of insect lanterns to insects is an important agricultural pest physics control measure and an important component of integrated management. Currently, both solar and electrical insecticidal lamps are used for crop pests. The technique is easy to use on a wide scale by using insecticidal lamps to eliminate photogenic pests and by eliminating them in large quantities and without polluting the environment。
2. 1. 2 sexual hormone induction
Use of certain chemicals associated with gender communication from pests themselves to trap males. Currently, synthetic sex hormone products have sexual inducements, stimulants and control agents. Among them, sexual inductions can trap specified pest species, such as moths, such as slashed night moths, and moths, with a high degree of lethality, eliminate pests once and control their reproduction. However, the study of other pests needs to be deepened due to the large variety of pests and the small variety of pest-specific informationals and the limitations in the use of this method。
2. 1. 3 palette seduction
Use insect colour to make palettes for insect killing. At present, the common colour panels are yellow and blue, i. E. Twilight flies, aphids, white lice, etc., and can be used to trap pests. And what needs to be noted is that every seven to ten d is to have the last oil on the palette so that the oil on the palette doesn't have the effect of seduction。
2. 1. 4 pest-net killing
The advantage of the technique, which is based on a relatively small aperture gauze and is combined with a large shed, is that it is effective in preventing pests from entering the shed and avoiding the erosion of vegetables. On the other hand, it also has good aerodynamic performance, which does not affect the normal growth of vegetables。
2. 2 green integrated disease prevention and control technology
Green control of disease in vegetable cultivation is based on the following points: (1) the selection of good varieties of vegetables that are highly resistant to disease, have good quality production and are suitable for growing in the region, depending on the soil and geographical conditions of the region, is the basis for combating the disease in vegetables. 2) high and narrow, drenched ditches, designed to keep their surfaces free of water, even if it rains, so that they can quickly remove the water, lower the temperature in the shed and avoid disease. 3) after the first crop harvest, the soil should be ploughed in a timely manner, preferably with sunlight for several days, to reduce the disease in the soil. (4) implementation of rotational practices to prevent endemic diseases. 5) strengthen field management and timely removal of infected plants to ensure healthy growth of vegetables。
2. 3 eco-control techniques for pests and diseases
Eco-control is primarily pre-emptive, with many regions experiencing catastrophic weather events such as wind, storm and hail, when organic vegetables in the sheds are exposed to raisins, leaks in the sheds, and when bad weather affects air quality in the sheds. Studies have shown that pests are more likely to occur in acidic environments and that effective scientific measures should be taken to control acidity in the growing environment. The proper spraying of alkaline substances on vegetable leaves by growers can effectively reduce the probability of disease and pests occurring。
Although the market prospects for organic vegetables are favourable, the process of planting them is more complex, as it takes more care to manage the field in order to be pure and clean. These are detailed methods of growing the organic vegetables in large sheds, which can be used by relatives who wish to grow them。
