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This set of jingles is: a fertilization of 3, 4 pieces, two fertilization and crispy knee bags, three fertilization bell mouths, four fertilization weights.
The specific content is:
Apply 3 or 4 tablets together. Refers to a single fertilization combined with seedlings, seedlings, and transplanting. This is a basis for ensuring seedlings, seedlings, and promoting seedlings. Generally, the method of looking at seedlings and topdressing should be adopted. It is advisable to use human excrement and biogas fertilizer, 30 tons per mu. Left and right, fertilizer field, bottom fertilizer should be less applied, transplanting the field should be appropriate, and combined with cultivating and weeding to do a good job of fertilization.
Two fertilized knee bags. This is a jointing fertilizer, which is also a strong growth of corn stems and leaves. When a male and female stamen begin to differentiate, a top dressing and appropriate topdressing can help accumulate more photosynthesis and facilitate the differentiation of the male and the stamen. The amount of topdressing accounted for 30% of the entire topdressing fertilizer, and the fertilizer type was mainly composed of corn-specific compound fertilizer, 25~30 kg per mu. At the same time, combined with topdressing and ploughing.
Three fertilizing bell mouths. This period is the period of spikelet and floret differentiation of maize stamens and stamens. It is the key period for determining the size of ear and the number of grains per ear. It is also a period of vegetative growth and reproductive growth. Re-application of attacking fertilizer can reach large stalk Spike, the effect of increasing production is significant. The amount of topdressing accounts for 60% of the total topdressing amount. Except for high-yield fields, phosphorus and potassium fertilizers are generally not applied, and about 20 kg of urea per mu is used.
Four fertilization weights. The weight of attacking is a top dressing before and after corn flowering pollination to prevent post-fertilization, prolong the life of green leaves, improve its photosynthetic efficiency, and ensure full grain with sufficient photosynthetic products. Granular fertilizer should be applied early, generally in the silking of the ear, so that the fertilizer effect is played in the mature stage of the grouting milk. The skill application depends on the panicle fertilizer and the plant growth phase. In the panicle fertilizer, the yellow leaves are more than the yellow ear of the plant. When removing fertilizer, it should be supplemented with granular fertilizer. (Changyang Agricultural Bureau Li Hui)
Source: Rural News
Corn topdressing technique
At present, at the core stage of corn field management, Changyang Agricultural Technology Department has compiled a set of jingles using the proverbs to allow farmers to correctly master the time and type of fertilization.
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