Corn leaf age model management top dressing technology

According to the management requirements of the corn leaf age model, the corn should be used for the entire application of good fertilizer such as weaning fertilizer, marrying manure, raising seedling fertilizer, panicle fertilizer and strong seed fertilizer.

1. Before and after the seedling stage and transplanting of corn, attention should be paid to the topdressing of weaning fertilizer and marrying manure. During the three-leaf period of maize, the nutrient stored in the endosperm of the seed is exhausted. At this time, the root system of the plant is not yet developed, and the ability to absorb nutrients in the soil is weak. It is possible to apply 2.5 kg of urea per 667 square meters (1 mu) to the water. A "weaning fat". The practice of transplanting corn with nutrient ball seedlings before transplanting (when two-leaf to three-leaf one-hearted) must also be followed by a “send of marrying manure”.

2. When corn grows to 5 to 6 leaves, according to field conditions, soil fertility, etc., for maize with weak seedling strength, 5 to 10 kg of urea per 667 square meters is used, combined with shallow cultivator grounds and topdressing. Miao Fei." At this time, the ground may also receive truncated soil capillaries in order to ensure the role of conservation, especially in drought-deficient areas, an effective drought resistance measures.

3. When the corn reaches 10 leaves, a "panicle fertilizer" should be applied to promote long ears and create conditions for the formation of large spikes. The absorption of topdressing by corn plants often lags behind for several days, and the newly applied fertilizer cannot immediately take effect. When this time, the fertiliser plays an important role in providing nutrition for the growth and development of the three-leaf ear. The three-leaf ear is a functional leaf that directly affects the size and yield of the ear of corn. This fertilizer application is a key and should be applied and given full. General 667 square meters with urea 15 to 20 kg for chase.

4, corn tasseling period, in order to ensure that the grain is full, but also topdressing a "strong seed fertilizer", generally 667 square meters with urea 5 ~ 7.5 kg. At this time, it can also be supplemented with emasculation, removal of strains that affect the yield of diseased plants, removal of diseased yellow leaves, etc., to improve ventilation and light transmission in the corn field, in order to reduce pests and diseases and increase yield. Interlaced tassels (smallpox) can not only reduce consumption of nutrients, increase corn yield, and can also be used as an excellent feed additive for pigs to increase fat and promote long hair growth. The detamas of corn are generally advised to hold the parietal sheath in one hand when the tassel first emerges, and to forcefully remove the tassels that have already been grown.

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Eating more corn can increase the brightness of our eyes. Because corn is rich in substances such as carotenoids and these can be said to be used as ingredients for brightening the eyes, eating a proper amount of corn can help to slow down the loss of our eyesight.

And corn is rich in nutrients, with protein, body fat, tapioca starch, vitamin B1, vitamin B2, vitamin B6, vitamin A, vitamin E, carotene, methyl cellulose and calcium, phosphorus and iron. According to research, fresh corn contains 4-5 times more body fat than rice and flour, and contains unsaturated fat, of which 50% are fatty acids, which inhibit the digestion and absorption of cholesterol. It is an excellent medicine for long-term use to reduce blood cholesterol and soften blood vessels, making it an ideal vegetable oil for patients with hypertension, coronary heart disease, obesity and the elderly.

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