拔节期追磷对小麦生长及产量的影响

Effect of pursueing phosphorus to growth and yield of wheat on the jointing stage

试验是在小麦氮肥充足、底磷不足,拔节初期表现严重缺磷的情况下进行的。结果表明,追施磷肥对促进小麦生长发育、增加根系数量、提高成穗率、增加产量效果显著。

The experiment was in the situation of the wheat nitrogenous fertilizer sufficient, the bottom phosphorus was insufficient, and the jointing initial period performance seriously lacks the phosphorus to carry on. The results indicated that pursuesing phosphate feailizer could promote the wheat growth, increase root system quantity, enhance the wheat ear ratio, increase yield re- markably. There were instruction significance to recovery phosphorus lacking to wheat on vegetal period, lacks phosphorus recovery to the wheat vegetal period to have the instruction significance.