冬小麦"一水千斤"栽培模式养分运筹研究
Research on Water and Nutrients Management Rule of Cultivating Mode with Thousand Catties by Watering Once for Winter Wheat
孙明清 1李月华 1张广辉 1张辉 1高倩 1侯大山 1刘强 1李娟茹 1张建 1李光 1任素梅 1丁莉 1何煦2
作者信息
- 1. 石家庄市农业技术推广中心,河北石家庄050051
- 2. 石家庄市农业机械化推广站,河北石家庄050051
- 折叠
摘要
[目的]研究冬小麦"一水千斤"栽培模式下的养分管理方式.[方法]试验在赵县韩村镇韩村进行,播种前、收获后采集2m土体土样,测定土样的全氮、有效磷、速效钾含量和存储量.[结果]2m土层中全氮和有效磷的含量变化幅度较大,全氮的含量主要集中在0~40 cm土层,而有效磷的含量主要集中在0~20 cm土层;速效钾含量2 m土体纵向变化幅度较小,80 cm土层以下速效钾含量虽有所减少,但含量比较稳定;冬小麦全生育期内2m土体全氮和有效磷存储量呈盈余状况,有效磷存储量呈亏缺状态.[结论]无论是"一水千斤"栽培模式还是常规栽培模式,麦田土壤养分运筹应适当减少氮磷肥用量,增加钾肥用量.
Abstract
[Objective]Nutrients management rule of cultivating mode with "thousand catties by watering once" was studied for winter wheat. [Method]The experiment was carried out in Hancun Village ,Hancun Town,Zhaoxian County.Soil samples were taken from 2 m soil layer ,total nitrogen, available phosphorus, available potassium content and storage quantity were measured before sowing and after harvesting.[Result] Range of content of nitrogen and phosphorus in 2 m soil depth was larger, the content of total nitrogen was mainly concentrated in the 0-40 cm soil layer, and the content of effective phosphorus was in the 0-20 cm soil layer; The content of available potassium in 2 m longitudinal soil depth changed at a less extent.The content of available potassium under the 80 cm soil was decreased, but it was relatively stable;total nitrogen and phosphorus storage in 2 m soil depth was in surplus while the effective phosphorus storage was deficient in the whole growth period for winter wheat.[Conclusion] The study confirmed that whether the mode of winter wheat with "thousand catties by watering once" or conventional culti-vation mode, the amount of nitrogen and phosphorus fertilizer should be reduced properly and that of potassium fertilizer be increased according to wheat soil nutrient management.
关键词
冬小麦/栽培模式/一水千斤/养分运筹Key words
Winter wheat/Mode of cultivation/Thousand catties by watering once/Nutrients management引用本文复制引用
基金项目
河北省现代农业产业技术体系项目(HBCT2013010201)
石家庄高层次人才支持项目()
出版年
2017
国家科技期刊平台
NSTL
万方数据