民勤绿洲防护林带作用下作物生长分析  

ANALYSIS OF GROWTH OF CROPS UNDER THE DIFFERENT SHELTERBELTS IN MINQIN’S OASES

作　　者：张锦春[1] 赵明[1] 

机构地区：[1]甘肃省治沙研究所,甘肃武威733000

出　　处：《防护林科技》2000年第1期12-14,共3页Protection Forest Science and Technology

摘　　要：本试验对比研究了小麦和玉米在枣树和杨树 2种农田防护林带作用下的生长状况和产量。结果表明 :枣树林带下的作物生长状况明显优于杨树林带。枣树林带下小麦的干物质积累速度高于杨树林带 51 4% ,致使生物产量相对杨树林带高 38 4%。不同种植方式小麦、玉米的粮食产量增加 4 2 %～ 13 0 %。增产的原因之一是枣树林带下作物不同生育期农田土壤含水率均高于杨树林带。可见枣树林带的胁地作用弱于杨树林带。推广枣树防护林 ,实现枣粮间作 。Growth and yield of wheat and corn under sheltorbelts of Chinese jujub and poplar were studied The result indicated, the velocity of dry matter accumulation of wheat under the Chinese jujub shelterbelt is 51 4% faster than one under the poplar shelterbelt, and the biological yield of the former is 38 4% higher than one of the latter The grain yield of wheat and corn by different means of planting increased by 4 2% to 13 0% The higher Soil moisture content under Chinese jujub shelterbelt than one under poplar shtlterbelt is one of the factors of raising yield The side effect of Chinese jujub shelterbtlt is less than poplar shelterbelt Spreading Chinese jujub shelterbelt and intercroping of jujub tree with grains are improtant measures raising production in Minqin oases

关 键 词：枣树林带 杨树林带 小麦 玉米 生长状况 产量 

分 类 号：S727.24[农业科学—林木遗传育种] S510.1[农业科学—林学]