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尿素是目前我国生产的固体氮肥中浓度最高的一种氮肥,其水溶液呈中性反应。尿素除用于作物的底肥外,绝大多数用于作物的追肥。那么,怎样才能提高尿素的追肥效果呢?主要应做到以下几点:1、根据土壤肥力确定追肥数量。实践证明,对中低产田地块增加尿素施肥量,可以显着地提高产量。对高产田块则保持一般施肥水平即可。一般在施足农肥和化肥做底肥的基础上,
Urea is the highest concentration of nitrogenous fertilizer in the production of solid nitrogen fertilizer in our country, and its aqueous solution is neutral. In addition to urea used for crop fertilizer, the vast majority of top-dressing for crops. So, how can we improve the effect of top dressing urea? Main should do the following: 1, according to determine the top soil fertility quantity. Practice has proved that increasing the amount of urea fertilizer on low and medium-yield plots, can significantly improve the yield. On the high yield plots to maintain the level of general fertilization can be. In general, enough fertilizer and fertilizers to make base fertilizer,