小麦高产田套种夏玉米适宜播期与收获期的研究  

Research on the Time Interplanting and Harvesting Summer Maize in High Yield Wheat Field

作　　者：雒温生 晁召飞 何义珍[2] 

机构地区：[1]河南怀川种业有限责任公司,河南焦作454003 [2]中国农科院农田灌溉研究所,河南新乡453000

出　　处：《河南科技学院学报》2007年第2期18-20,共3页Journal of Henan Institute of Science and Technology(Natural Science Edition)

摘　　要：在前茬高产小麦群体郁蔽情况下,套种玉米的产量(y)随播期(x)而变化的回归方程为^y=529.807+6.284x-0.434x2(R=0.981**),据此求得高产最适播种时间为6月1日,其产量期望为574.83 kg.666.7 m-2。从玉米产量(y)随收获期(x)而变化的回归方程^y=504.046+11.265x-0.544x2(R=0.999**),求得高产最佳收获期为9月26日,其产量期望为562.36 kg.666.7 m-2。In the case that the crops of high yield wheat grow up,the interplanted maize yield （y） changing with the seeding time （x） regression equation is y^^ = 529. 807 ＋ 6. 284x - 0.434x^2 （ R =0.981^ ＊ ＊ ）, accordingly the best seeding time of high yield is June 1 ,the expected yield is 574.83 kg 666.7 m ^-2. The regression equation of the maize yield changing with the harvesting time （x） is y ^^= 504. 046 ＋ 11. 265x - 0. 544x^2 （ R = 0. 999^ ＊ ＊ ）, thus the best harvesting time of high yield is September 26,and the expected yield is 562.36kg666.7 m^-2 .

关 键 词：夏玉米 播种期 收获期 产量 

分 类 号：S512.1[农业科学—作物学]