氮、磷和钾营养对新海16长绒棉产量和品质的影响

Effect of nitrogen,phosphorus and potassium application on yield and qualities of Xinhai 16 super sea cotton

氮肥、磷肥、钾肥N∶P2O5∶K2O=1∶0.71∶0.30并配合Zn、Mn、B微肥施用,经济施肥量为N 189.3 kg/hm2、P2O5134.4 kg/hm2、K2O 57.2 kg/hm2,能显著促进棉花的生长发育和提高产量,比对照增产40%,对新海16纤维品质中的马克隆值影响显著,但对纤维综合品质影响不显著。

Effect of nitrogen, photassium and potassium application on grain Yield of Xinhai 16 super sea cotton were studied. Yield was increased obviously but fertilization was not apparent effect of its qualities . The results showed that Xinhai 16 yield of combined N 189.3 kg/hm^2, P2O5 134.4 kg/hm^2, K2O 57.2 kg/hm^2 with Zn, Mn, B micronutrition, economic fertilization proportion was N： P2O5 ： K2O = 1：0.71：0.30.Yield of optimum fertilization increased by 40% than contrast treament, while the effect N, P and K application on Xinhai 16 qualities was not observed except for micron value.