| 王彩绒,田霄鸿,李生秀.覆膜集雨栽培对冬小麦产量及养分吸收的影响[J].干旱地区农业研究,2004,(2):108~111 |
| 覆膜集雨栽培对冬小麦产量及养分吸收的影响 |
| Effects of cultivation by mulching and rain harvesting on yield and nutrient uptake of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2004.02.23 |
| 中文关键词: 冬小麦 覆膜集雨 产量 半湿润易旱区 |
| 英文关键词:winter wheat semi-humid prone to drought area plastic film mulching rain harvesting yield |
| 基金项目:国家自然科学基金重大项目(30230230)；农业倾斜项目(30070429)；国家重点基础研究项目(G1999011707) |
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| 中文摘要: |
| 采用垄上覆膜集雨保墒、沟内种植的栽培方法,在半湿润易旱的关中红油土上进行了冬小麦田间试验,探讨覆膜集雨栽培对冬小麦产量及氮磷钾养分携出量的影响。结果表明,覆膜集雨的增产效果明显。覆膜条件下,高氮处理的生物产量与籽粒产量比低氮处理分别增加15.9%、22.6%;高氮高密度条件下,覆膜的生物产量与籽粒产量比不覆膜分别提高39.5%、28.9%,其中,高氮低密度(即高氮宽垄覆膜集雨)处理的籽粒产量和生物产量最高,产量可达7898kg/hm2;覆膜集雨种植可协调土壤水分和养分的关系,促进了地上部的养分携出量,有利于植株的协调生长,最终获得高产。 |
| 英文摘要: |
| The field experiments were conducted in the middle of Shaanxi province, applying the cultivation of plastic film mulching on ridge and sowing in furrow, on purpose to study the effect of mulching and rain-harvesting cultivation on yield and nutrient uptake of winter wheat. The results show that mulching and rain-harvesting can increase yield obviously. Under the condition of film mulching, the biomass yield and the grain yield of high N treatments were raised by 15.9% and 22.6% respectively compared to those of low N treatments. Under the condition of high N and high density, the biomass yield and the grain yield of the mulching treatments were increased by 39.5% and 28.9% respectively compared to those of the no mulching treatments. The highest yield was gotten in the treatment of high N and low density, being 7 898 kg/hm2. Plastic mulching and rain harvesting cultivation was bendficial to harmonize the relationship between soil water and nutrients, stimulate the nutrient uptake of crops, and realize high yield. |
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