麦棉套作模式氮磷钾肥料用量对小麦产量性状的影响
Effects of N, P and K Amount on Yield Trait of Wheat in Wheat-Cotton Intercropping System
王树林 1祁虹 1王燕 1张谦 1冯国艺 1林永增 1梁青龙1
作者信息
- 1. 河北省农林科学院棉花研究所,农业部黄淮海半干旱区棉花生物学与遗传育种重点实验室,河北石家庄050051
- 折叠
摘要
[目的]研究河北省南部高肥力地块在麦棉套作模式下的小麦氮磷钾肥料需求量,为合理施肥提供理论依据.[方法]采用大田随机区组试验,针对氮、磷、钾3种肥料分别设置了0,75,150,225,300 kg/hm2 5个用量梯度,调查小麦分蘖、成穗数、产量及产量构成因素.[结果]氮肥对小麦具有显著的增产作用,单位面积穗数、穗粒数、千粒重及产量随施氮量增加而增加,磷肥具有一定的增产效果,钾肥无增产效果.[结论]在河北省南部高肥力地块,麦棉套作小麦适宜肥料用量为氮肥225 ～ 300 kg/hm2,磷肥150 kg/hm2,免施钾肥.
Abstract
[Objective] To research the N,P and K amount of wheat in wheat-cotton intercropping system in high fertility field of Hebei Province.[Method] The field randomized block experiment was adopted.Five treatments(0,75,150,225 and 300 kg/hm2) were designed for N,P and K.Wheat tillering,ear number,yield and yield component were investigated.[Result] Wheat yield was increased significantly by using N fertilizer.The panicle per unit area,grains per ear,thousand-grain weight and yield were improved as the nitrogen enhanced.P fertilizer enhanced the wheat yield at certain degree,but P had no effects on wheat yield.[Conclusion] The optimum fertilizer for wheat-cotton intercropping system is 225-300 kg/hm2 N and 150 kg/hm2 P2O5; and K should not be applied.
关键词
麦棉套作/氮磷钾/小麦/产量Key words
Wheat-cotton Intercropping System/N, P, K/Wheat/Yield引用本文复制引用
基金项目
科技部支撑计划(2013BAD05B00)
国家棉花产业技术体系建设专项(CARS-18-21)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据