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近年来试验研究结果认为,为了保证棉花幼苗的生长和发育,棉花出苗后必须有充足的磷肥供应,这不仅可以加速棉花幼苗的生长发育,同时可以加速通过生长阶段,和促进成熟,因而建议应以部分磷肥在棉花播种同时施于行侧.但是我们的试验结果证实,在棉花播种的同时于行侧施入磷肥,虽然可以使磷肥集中地分布在棉行附近,但在棉花幼苗出土阶段不能为幼苗根系立即吸收.根据以示踪原子法多次
In recent years, experimental results show that, in order to ensure the growth and development of cotton seedlings, cotton must have adequate supply of phosphate fertilizer after emergence, which not only can accelerate the growth and development of cotton seedlings, but also accelerate the growth stage and promote ripening. With some of the phosphate fertilizer applied to cotton at the same time in the implementation of the line side.But our test results confirm that the cotton sowing at the same time on the side of the phosphate fertilizer, although the phosphate fertilizer can be concentrated in the distribution near the cotton line, but the excavated stage in cotton seedlings can not The root system of seedlings immediately absorbed according to the tracer atomic method multiple times