旱作保墒不同栽培方式研究  

Study on Different Cultivation Ways of Dry Land Soil Conservaton in Mountain Area of Southern Ningxia

作　　者：郭忠富[1] 兰小龙[1] 陈玢[1] 

机构地区：[1]宁夏固原市原州区农业技术推广服务中心,宁夏固原756000

出　　处：《宁夏农林科技》2013年第6期93-98,125,共7页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：在宁夏南部山区的固原市原州区开展旱作保墒不同栽培方式研究,结果表明,在不同覆膜方式下,秋季覆膜玉米产量最高为9 735.0 kg/hm2,较常规半膜增产3 796.5 kg/hm2,增幅为38.99%;以补充灌溉375 m3/hm2时主副产品产量最高为2 645.43 kg/hm2,增产11.1%,纯收益则补灌量225 m3/hm2最高,为12 769.5元;一膜两季栽培2年玉米平均单产达9 374.9 kg/hm2,较对照增产2 062.4 kg/hm2,增幅达28.2%;在全膜覆盖条件下玉米大垄中间套种大豆,水分生产效率提高1.20 kg/(mm·hm2),土地利用率提高43%,单产达10 481.5 kg/hm2,经济纯收入提高40.39%。The different cultivation ways of dry soil conservaton in mountain area of southern Ningxia was carried out. The resuhs showed that under the condition of different filming, the yield of autumn coated maize was the highest, being up to 97 350 kg/hm^2, and increased by 3 796.5 kg/hm^2 than conventional membrane. When the supplement irrigation was 375 m^3/hm^2, the yield of main by-product was the highest, being up to 2 645.43 kg/hm^2, and increased by 11.1%. When the supplement irrigation was 225 m^3/hm^2, the net income was the highest, being up to 12 769.5 yuan. The average yield of 2 years under the condition of a film two season planting was 9 374.9 kg/hm^2, and increased by 2 062.4 kg/hm^2 than control. When maize intercropped soybean under the condition of all membrane covering, water productivity was 1.20 kg/ （mm·hm^2）, and land utilization increased by 43%, per unit yield being up to 10 481.5 kg/hm^2, and economic net income increased by 40.39%.

关 键 词：旱作节水 土壤含水量 土壤温度 产量 效益 水分利用率 

分 类 号：S157.4[农业科学—土壤学]