摘要
桐梓县有中低产旱地 1.5万hm2 ,其中一年一熟制 1.4 96万hm2 ,由于农户投入不足 ,产量在 2 5 0kg/ 6 6 7m2左右徘徊。为了提高玉米产量 ,从 1999～ 2 0 0 2年 ,进行了油菜鲜草还土试验示范 ,培肥了地力 ,玉米产量从 2 72 .33kg/6 6 7m2 ,提高到 36 0 .6 7kg/ 6 6 7m2 ,增产 32 .4 4 %。以油菜作绿肥改良中低产旱地 ,值得推广。
There is 0.15 million ha. Of low-middle yield upland field in Tongzi county. Of which 0.1496 million ha belongs to single cropping system. And its maize yield is about 3750 kg/ha. The maize yield is increased from 4084.95 kg/ha to 5410.05 kg/ha. By means of using rape crop as green manuse to return to soil during 1999～2002. This (measure) is worth to be popularized in low-middle yield upland area.
出处
《贵州农业科学》
CAS
2004年第2期45-47,共3页
Guizhou Agricultural Sciences
关键词
油菜
秸秆
中低产旱地
改良
贵州
桐梓县
绿肥
rape
improvement
upland field with low-middle yield
Tongzi of Guizhou
