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植物的整个生长发育周期对氮、磷、钾都需要,但各生长时期的需求量不同,各品种间需求也各不一致,而葱蒜类则是在出苗后的整个生长过程中,对氮、磷、钾的需求量要求较高。如何使施入田间的肥料和土壤中存留的肥料能尽快的分解释放出来供其吸收利用是施肥中的关键问题。汝山乡农?
The whole plant growth and development cycle of nitrogen, phosphorus and potassium are needed, but the demand of each growth period is different, the demand of each species is also inconsistent, while the onion garlic is in the whole growth process after emergence, nitrogen, Phosphorus, potassium demand is higher. How to make the fertilizers applied to the field and the residual fertilizers in soil can be decomposed and released as soon as possible for their absorption and utilization are the key problems in fertilizer application. Ru Shan rural?