夏玉米种子丸粒麦田撒播套种技术研究首例夏玉米种子丸粒麦田撒播套种试验田已经在房山东营问世。供试品种掖单１３、１９—１，５月３１日制丸、浸丸，６月４日撒播套种。留苗密度５０００株左右，对照田６月１８日常规开沟播种。从目前初步判断：１、丸粒撒播比常规播种... Summer maize seed pellets spread in the wheat field intercropping technology The first case of summer corn seed pellet dissemination of wheat field trials have been published in Fangshan Dongying. Test varieties Yeda 13, 19 - 1, May 31 system of pills, dip pill, June 4 sowing intercropping. Liao Miao density of about 5000, the control field on June 18 conventional ditching sowing. Judging from the current preliminary: 1, broadcast sowing than conventional sowing ...