Nitrogen,Potassium Uptake and Utilization in Wheat and the Character of Dynamic Variation of Dry Matter Accumulation under Intercropping

The field experiments were conducted to study the affection of nitrogen,potassium uptake,utilization and yield of wheat under the condition of two crops intercropping.The results showed that the obvious facilitation of the accumulation of the dry matter and the yield was got by intercrop.In general nitrogen fertilizer level,the biomass and the yield of intercropped wheat is compared with monocropping increased 30.6% and 12.8% respectively.From heading stage to milky maturity stage,the nitrogen content of the stem,leaf and spike of wheat and the potassium content of the spike of wheat are presented that the first row the third row monocropping,but the potassium content of the stem of the wheat is presented that lower than mono cropping after harvest.The accumulation of N,K in wheat is presented that the first row monocropping the third row.