摘要
以正大619、迪卡008及玉美头105为试验材料,研究免耕条件下,不同播种深度对于玉米的出苗力、出苗率、整齐度、抗倒性及产量的影响,并探索出免耕条件下适宜的播种深度。结果表明：不同的玉米品种,在免耕条件下,播种深度为5～8 cm时,出苗率最高,抗倒伏性最好,整齐度最佳;播种深度为3～8 cm时,玉米产量较高。在免耕条件下,玉米的播种深度以5～8 cm为宜,有利于玉米增产增收。
In order to find a suitable sowing depth for maize under no-tillage conditions, Zhengda619, Dika008 and Yumeitou105 were taken as experimental materials to study the effects of different sowing depths on emergence force, emergence rate, uniformity, lodging resistance and yield of maize. The results showed that for each maize variety and under the no-tillage conditions, when sowing depth was 5～8 cm, the emergence rate was the highest, the lodging resistance and the uniformity were the best; when sowing depth was 3～8 cm, the maize yield was relatively higher. So, under the no-tillage conditions, the optimal sowing depth for maize was 5～8 cm, which was beneficial to increasing the yield and benefit of maize.
出处
《湖南农业科学》
2014年第3期19-21,24,共4页
Hunan Agricultural Sciences
基金
国家现代农业产业技术体系广西玉米创新团队建设项目(nycytxg xcxtd-07-B)
关键词
免耕
季节性干旱
播种深度
玉米产量
抗倒性
no-tillage
seasonal drought
sowing depth
maize yield
lodging resistance
