摘要
六年试验结果得出,玉米、小麦、大豆产量均轮作高于连作,其中,豆茬玉米六年平均产量5615.90kg/hm~2,连作玉米为4909.42kg/hm~2,二者之间达到1%极显著差异。麦茬麦六年平均产量1876.35kg/hm~2,豆茬麦为1540.78kg/hm~2,连作麦是1419.37kg/hm~2,三者之间达到1%极显著差异水平。麦茬豆六年平均产量 1613.63kg/hm~2,油菜茬大豆 1574.64kg/hm~2,连作大豆为 1428.06kg/hm~2。三者之间亦达到5%差异显著水平。
The research shows that rotation yield of corn, wheat and soybean are more high than continuous cultivation in six years. Among them average yield of corn in soyben stubble is 5615.90 kg/hm^2, average yield of continuous cultivation corn is 4 909kg/hm^2, between two reach 1% significance difference level. Average yield of wheat in wheat stubble is 1 876.35 kg/hm^2, wheat yield in soybean stubble is 1540.78 kg/hm^2, yield of continuous cultivation wheat is 1419.37 kg/hm^2, among three reach 1% signicance difference level. Average yield of soybean in wheat stubble is 1613.63 kg/hm^2, soybean yield in cole stubble is 1574.64 kg/hm^2, yield of continuous cultivation soybean is 1428.06 kg/hm^2, among three reach 5% significance difficance level.
出处
《黑龙江八一农垦大学学报》
2000年第1期19-23,共5页
journal of heilongjiang bayi agricultural university
关键词
茬口
轮作
连作
农作物
产量
crop stubble
rotation and continuous cultivation
crop