topdressing nitrogen fertilizer
叶面追施氮肥
Ratio of base to topdressing fertilizer.
底追肥比例
Fertilizer topdressing at jointing stage.
拔节期追肥
Effect of Irrigation Quota for Wheat on Topdressing Urea Efficiency
小麦灌水定额对追施尿素肥效的影响
Sieved sand consistent with construction sand for topdressing and repair works.
覆沙和修补需要筛过得沙子。
Effect of Density and Topdressing Nitrogen Fertilizer on Quality and Yield of Spring Wheat
密度与叶面追施氮肥对春小麦品质和产量的影响
Dilute value of the three species reaches the maximum when topdressing at the booting stage.
稀懈值中三个品种均在孕穗期追氮达到最大。
The nitrogen utilization efficiency were downtrend with the amount of topdressing increased.
随著施氮量增加，追施氮肥得利用率明显下降。
The grain yield and protein content responded differently to the ratio of base to topdressing nitrogen.
籽粒产量和蛋白质含量对底追比例的反应有一定差异。
Fertilizer nitrogen accumulation from topdressing was increased, reducing the amount of basal fertilizer.
积累的肥料氮中，来自追肥的量增加，底肥的量减少。
Optimum seeking on the density of spring wheat and suitable leaf age of the first topdressing and irrigating
春小麦密度和首次追肥灌水叶龄寻优
Effects of nitrogen topdressing at different growth stage on chlorophyll fluorescence of winter wheat flag leaves
追施氮肥时期对冬小麦旗叶叶绿素荧光特性的影响
Effects of Nitrogen Fertilizer Rate and Ratio of Base and Topdressing on Winter Wheat Yield and Fate of Fertilizer Nitrogen
施氮量和底追肥比例对冬小麦产量及肥料氮去向的影响
Effects of Nitrogen Rate and Ratio of Base Fertilizer and Topdressing on Uptake, Translocation of Nitrogen and Yield in Wheat
施氮量和底追比例对小麦氮素吸收转运及产量的影响
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