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水稻要实现某一目标产量,不仅需要一系列营养生育指标作为控制的依据,且要通过合理的肥水措施作为有效的控制手段,力求水稻全生育期既满足该目标产量的稻株生长和营养需求,又使其效益相对较高。本研究提出的前期施氮量的确定方法和中后期施氮量的简易诊断方法,为实现水稻高产稳产栽培技术规程的施氮量控制与诊断提供了快捷有效的手段。
In order to achieve a certain target yield, rice not only needs a series of indicators of vegetative growth as the basis for its control, but also needs rational fertilizer and water measures as effective control measures to ensure the rice growth and nutritional requirements that meet the target yield during the whole growth period of rice , But also to its relatively high efficiency. The method of determining the amount of nitrogen applied in the early stage and the simple method of diagnosing the amount of nitrogen applied in the late stage provided a quick and effective method to control and diagnose the rate of nitrogen application in the technical regulation of high and stable yield cultivation.