【摘 要】
：
品种对地膜玉米产量影响很大。据我站几年的试验、示范表明,生育期越长的品种增产潜力越大。我站于1987、1989、1990年分别用丹玉13号(生育期123)、掖单4号(生育期112天)、
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品种对地膜玉米产量影响很大。据我站几年的试验、示范表明,生育期越长的品种增产潜力越大。我站于1987、1989、1990年分别用丹玉13号(生育期123)、掖单4号(生育期112天)、唐单
Variety of corn film yield a great impact. According to the tests I conducted for several years, the demonstration shows that the longer the growth period, the greater the potential for increasing yield. I stood in 1987, 1989, 1990, respectively, with Dan Yu 13 (growth period 123), Yedan 4 (growth period of 112 days), Tang single
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