摘要
以丹玉405、丹玉39、丹玉86、丹玉605四个不同熟期的优良玉米品种为材料,分别于4月22日、5月8日和5月26日进行三次播种,比较不同熟期品种在不同播期的产量差异。结果表明:极晚熟和晚熟品种适宜提早播种,以满足生育期内对光、热的充分利用,促进品种高产;中晚熟和中熟品种在生长期充足的情况下,适当晚播能够促进后期充分灌浆、避免早衰,有利于品种增产。在辽宁不同玉米产区,选择适宜熟期的品种和播期,有利于提高玉米的单产水平。
Four different maturity maize hybrids（Danyu405,Danyu39,Danyu86 and Danyu605） were chose which sowing on April 20,May 5 and May 20 respectively for three planting as the material to compare different hybrids yield differences in different sowing maturity.The results showed that： very late-maturing and late-maturing hybrids were suitable for early sowing to meet the growth days,light and heat,and promote high-yield potential;middle-late-maturing and middle-maturing hybrids were suitable for later sowing to fill full post and avoid premature aging if the growing season was enough.It should choose the appropriate maturity hybrids and sowing days to improve maize yield levels on different corn producing areas in Liaoning province.
出处
《辽宁农业科学》
2012年第2期76-77,共2页
Liaoning Agricultural Sciences
基金
农业科技成果转化资金项目(2009B00104)
关键词
玉米
播期
产量
Maize（Zea mays L.）
Sowing day
Yield
