干旱地区农业研究2012，Vol.30Issue(2)：1-7,7.
基于低污染的宁夏引黄灌区13种种植模式氮磷平衡分析
Analysis of equilibrium between nitrogen and phosphorus in thirteen planting patterns in the area irrigated with Yellow River water in Ningxia based on low pollution
摘要
Abstract
In the face of the serious pollution caused by fertilizer application to environment and agricultural recession water, a test was conducted to explore soil nitrogen and phosphorus equilibrium regulation and economic valuation for thirteen planting patterns selected from traditional patterns such as planting rice after winter wheat harvest etc and assembled patterns such as cultivating vegetables and silage corn and oil sunflower and so on during different crops growing seasons compared with spring wheat intercropped with corn for cleaning agricultural production. The outcome showed as follows: Intercropping patterns were beneficial to reducing soil nitrogen and phosphorus amounts on account of prolonging crops covering time during crops growing season, and four cropping patterns of planting rice after winter wheat harvest, planting celery after winter wheat harvest, planting silage after winter wheat harvest and planting oil sunflower after winter wheat harvest were selected based on economic efficiency and less soil nitrogen and phosphorus amounts. The pattern of planting rice after winter wheat harvest was the optimum among four patterns because the amount of soil nitrogen loss was 56.2 % less than the control and that of soil phosphorus was 28.6 % less than the control after cultivation.关键词
低污染/种植模式/氮/磷Key words
low pollution/ nitrogen/ phosphorus/ planting pattern分类
农业科技引用本文复制引用
刘根红,许强,康建宏,吴宏亮,赵亚慧..基于低污染的宁夏引黄灌区13种种植模式氮磷平衡分析[J].干旱地区农业研究,2012,30(2):1-7,7.基金项目
国家水体污染控制与治理科技重大专项专题题“灌区低污染种植模式研究”(2009ZX07212-004-01) （2009ZX07212-004-01）
