Vegetable leaf fertilization technology

The aqueous solution of the nutrients required by the plant is sprayed on the leaves to allow the plants to absorb the effective nutrients directly through the leaves. This technique is called vegetable leaf fertilization technology. This technology has the advantages of faster transformation, higher fertilizer utilization rate, and promotion of nutrient absorption by roots than soil fertilization. Foliar fertilizer can be roughly divided into a large number of elemental fertilizers, micro-fertilizers, organic fertilizers, microbial fertilizers, or photosynthesis promoters or foliar fertilizers for pesticides. Commonly used in production are urea, potassium sulfate, superphosphate, ammonium nitrate light and micro-fertilizer, etc. The following points should be noted when applying leaves:
1. It should be carried out on the basis of applying enough base fertilizer and timely topdressing;
2. To select the appropriate type of foliar fertilizer for the type of vegetables, the stage of growth and development, the growth, and the purpose of fertilization;
3. The concentration of liquid fertilizer should be reasonable;
4. Choose to spray in the evening or on cloudy days;
5, pay special attention to evenly spray the growth of the vigorous leaves and the opposite side of the blade. For example, for greenhouse vegetables such as cucumber, eggplant, pepper, celery, leeks, etc., it is possible to use a solid multi-element compound foliar fertilizer “Gao Le” sprayed with a combination of anti-disease and anti-disease drugs; In the result period, greenhouse cucumber can spray 0.2% urea plus 0.2% potassium dihydrogen phosphate plus 1% sucrose sugar nitrogen liquid not only increase the disease resistance, but also reduce the damage of downy mildew; application light and micro-fertilizer and light absorption inhibition Spraying tomatoes, cucumbers, peppers, peas, celery, cabbage, kale, lettuce, broccoli, etc. are all very good.

Camping Light

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