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以褐土和潮土为基质,设置微区试验.结果表明,磷素营养在夏谷拔节期、冬小麦返青期对根系发育有明显的促进作用,钾肥则在生育中期效果逐渐明显,尤其在高磷条件下更明显.ABT 对作物根系发育效果非常显著.对根系的促进作用主要是增加了根系重量,增加了根系的分枝及细小根毛的量.冬小麦起身以后到灌浆期根重与养分吸收量和产量的相关性均较好,夏谷则在抽穗以后的相关性更好.
Cinnamon soil and alluvial soil were used as the matrix to set up the micro-plot experiment.The results showed that phosphorus nutrition promoted the root development obviously at the jointing stage of summer and valley and the turning-green period of winter wheat, but the effect of potassium fertilizer became obvious at mid-growth stage, Phosphorus is more obvious.ABT crop root development effect is very significant.The role of the root promotion is mainly to increase the root weight and increase the amount of root branching and small root hairs.Whole winter wheat up to the filling weight and nutrient absorption The correlation between yield and quantity was good, and summer rice had a better correlation after heading.