Greenhouse cucumber soil fertility is the key

 

Due to the strong growth potential of the greenhouse cucumbers, the yield is high, and there is a lot of fertilizer. At the same time, it is not possible to rely on chemical fertilizers. What should I do? Talk about the author's opinion.

 

Cucumber due to environmental advantages, growing, high yield, high-nutritional requirements, mu 10,000 kilograms of cucumber fruits, soil organic matter requires 2.5 - 3.0%, available nitrogen, phosphorus and potassium, respectively, 27.3, 13.0, 34.7 kg, and Plus a balanced supply of trace elements. The soil organic matter in our county is generally lacking, only 1.24 %, ploughing layer, insufficient available nitrogen and high salt index, which is the main obstacle factor restricting the low yield of cucumber in greenhouses in our county. Increasing fertility, promoting nutrient balance, and improving soil production potential in greenhouses are basic measures for high yield and quality of cucumber. How to increase the fertilizer?

 

The first is to add organic fertilizer. This is the basis for the fertility of the soil, and it is the key to the maturity of the new greenhouse. Because organic fertilizer is a complete fertilizer, it can not only supply various nutrients necessary for crop growth, but also play a major role in sustaining high yield of agriculture, activating soil nutrients and improving soil. According to practice, organic fertilizer has the following five characteristics: 1 organic fertilizer is applied to the soil, and microbial decomposition can continuously release various nutrients for cucumber absorption, and can also release carbon dioxide to improve crop carbon nutrition; 2 organic fertilizer During the decomposition process, humic substances, humic acid, amino acids, fulvic acid, etc. are produced, which have a stimulating effect on seed germination and root growth, and promote the biochemical metabolism of crops; 3 organic fertilizer is the main substance for improving soil. During the decomposition process, microorganisms produce secreted enzymes, humus, regulate soil materials and energy conversion, promote the formation of soil aggregate structure, and enhance soil water retention and fertility; 4 organic fertilizer can improve the availability of soil insoluble phosphorus; 5 can increase yield and Improve quality. The organic fertilizer combined with the application of the appropriate fertilizer can coordinate the contradiction between the growth of cucumber and the result, improve the resistance to stress, the color of the melon is straight, and the thorn is full, which can greatly improve the commodity rate. Usually Mushi chicken 4--6 side, stables with 5--8 side.

 

The second is to pay attention to the application of biological fertilizer. Usually Topsoil with full acre potassium, total phosphorus are more than 180 and 120 kilograms, 80--90% can not be directly absorbed by plants. The application of compound growth fertilizer can accelerate the decomposition and transformation of soil organic residues and poorly soluble phosphorus, potassium and other mineral nutrients. Increasing the application of organic fertilizers and biological bacterial fertilizers, and appropriately reducing chemical fertilizers, is an inevitable choice for the production of pollution-free green food. The soil maturation, especially with the new greenhouse on more fertilizer, around the practice proved: application of high-quality organic fertilizer 7.5 --10 kg, cucumber plants are robust, Zuogua more Guatiao long, extended harvest period, the first administration, benefit the whole growth period The effect is peculiar.

 

The third is to widely apply decomposed human excrement. Nitrogen is the basic element of crop growth and plays an important role in flower bud differentiation and melon enrichment. According to the survey, the ratio of nitrogen, phosphorus and potassium in the greenhouse of our county is 1 : 1.7 : 2.4 . For many greenhouses where the main application of diammonium phosphate for many years, special attention should be paid to supplementing nitrogen fertilizer. Human feces and urine are completely nutritious and rich in nitrogen. They are widely used in various households. The manure is widely used in the growing season of cucumber, and the effect of watering is the best. Newly built greenhouses can be poured before planting, which is also conducive to soil ripening.

 

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