The sorghum jointing to heading stage is the period of vegetative growth and reproductive growth. It is the most vigorous growth period in the whole growth period. Not only the stems and leaves grow rapidly, but also enter the stage of young spike differentiation. At this time, the absorbed nutrients reach the highest peak and the fertilizer is needed. The most period. In order to meet the needs of sorghum for nutrients, the first fertilizer should be applied at the jointing stage, and 10-15 kg of ammonium nitrate or 8-15 kg of urea should be applied per mu; and the second fertilizer should be re-applied during the flag-raising period. Topdressing ammonium nitrate 8 cm or urea 5 kg.
Huaxian Agricultural Technology Promotion Center Lu Shuguang
Huaxian Agricultural Technology Promotion Center Lu Shuguang
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