彭阳县旱地玉米保护性耕作表土不同作业技术试验简报  

A Brief Report on the Techniques of Planting Corn on Different Soil of Nonirrigated Farmland in Pengyang

作　　者：孟苞 张青[1] 海生广[1] 王吉宁[1] 杨志刚 

机构地区：[1]宁夏回族自治区彭阳县农业技术推广中心,宁夏彭阳756500 [2]宁夏回族自治区彭阳县种子公司,宁夏彭阳756500

出　　处：《甘肃农业科技》2005年第3期23-25,共3页Gansu Agricultural Science and Technology

摘　　要：在彭阳县旱地对地膜玉米采用保护性耕作进行的表土作业不同处理 ,即浅松 1次、旋耕 1次、旋耕 2次、畜耕 1次 (对照 )的试验结果表明 ,旋耕 2次的处理玉米出苗较其它处理提前 1～ 3 d,全生育期缩短 0～ 5 d;水分生产效率为 1 7.1 kg/ (hm2 · m m ) ,较其它处理提高 2 .0～ 3 .3 kg/ (hm2 · mm ) ;产量为 85 1 7.0 kg/ hm2 ,较对照增产 2 2 .5 % ;产投比为 5 .1Different disposals of the surface soil of the nonirrigated farmland where the corn is grown by protective farming, that is, the experiment result of shallow ploughing once, rotary tillaging once, rotary tillaging twice, domestic animals ploughing once, shows that the corn seedlings on rotary tillaged farmland may be 2～3 days earlier than that on other farmland, that the growing period will be shorten 0-5 days,that the moisture content producing efficiency is 17.1 kg/(hm^2.mm),which is 2.0～3.3 kg/(hm^2.mm) higher than others; that the production is 8 517.0 kg/hm^2,which is increased by 22.5%, the proportion of production and going into operation is 5∶13.

关 键 词：旱作地 地膜玉米 保护性耕作 水分生产效率 彭阳县 

分 类 号：S513[农业科学—作物学]