摘要
[目的]研究滴灌条件下不同垄规格对土壤水盐分布及番茄产量的影响。[方法]针对宁夏银北灌区水资源短缺和土壤盐渍化的资源环境问题,以滴灌番茄为对象,研究不同垄规格对土壤水盐分布及作物生长量、产量的影响。[结果]0～20 cm土层含水量变化较大,1 m深度土层平均含水量规律为垄上大于垄沟、高垄上大于低垄上、高垄沟小于低垄沟;土壤全盐量随土层深度增加而降低,0～20 cm土层全盐量最高,集中强降水后1 m深度土层平均全盐量规律为垄上大于垄沟,作物生育期1 m深度土层平均全盐量规律为垄沟大于垄上、高垄上小于低垄上、高垄沟大于低垄沟;高垄处理的产量显著高于低垄处理,增产2.37%。[结论]该研究对盐碱地治理与农业指导具有重要意义。
[Objective]To study effects of different ridge sizes on distribution of soil water-salt and tomato yield under drip irrigation.[Method]In view of the resource and environmental problems of water shortage and alkali-saline soil in north Yinchuan irrigation area of Ningxia,taking drip irrigated tomato as objects,the distribution of soil water-salt under different ridge sizes and its influence on crop growth and yield were researched.[Result]The soil water content in 0-20 cm soil layer changed greatly,and the regulation of average water content in the 1 m depth soil layer was the ridge larger than the furrow,high ridges larger than low ridges,and high ridge furrows less than low ridges;soil total salt decreased with the increase of soil depth,total salt content in 0-20 cm soil layer was the highest,and the regulation of average total salt content in 1 m depth soil layer in the irrigation period was the furrow larger than the ridge,high ridges less than low ridges,and high ridge furrows larger than low ridges,and after the mid strong precipitation was the ridge larger than the furrow.The yield of high ridge treatment was higher than that of the low ridge treatment,and the yield increased by 2.37%.[Conclusion]The research is of great significance to the management of saline-alkali land and the guidance of agriculture.
作者
陆阳
韩小龙
王乐
LU Yang;HAN Xiao-long;WANG Le(Scientific Research Management Office,Ningxia Hydraulic Research Institute,Yinchuan,Ningxia 750021)
出处
《安徽农业科学》
CAS
2018年第33期108-110,共3页
Journal of Anhui Agricultural Sciences
基金
宁夏水利科技项目"高垄滴灌技术在宁夏银北盐碱地治理中的应用效果监测评价"
关键词
滴灌
垄作
水盐分布
产量
Drip irrigation
Ridge tillage
Water-salt distribution
Yield
