通过对作物水分胁迫系数和氮素胁迫系数的模拟计算，可以求出最佳的灌水、施肥时间和各个时间段分别的灌水、施肥用量。
Through the calculation of the water stress index and N stress index, when and how much irrigation and fertilization can been decided.
通过对作物水分胁迫系数和氮素胁迫系数的模拟计算，可以求出最佳的灌水、施肥时间和各个时间段分别的灌水、施肥用量。
Through the calculation of the water stress index and N stress index, when and how much irrigation and fertilization can been decided.
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