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1 小麦、玉米制种周年地膜覆盖技术的概念 “小麦、玉米制种周年地膜覆盖技术”(以下简称“周年覆膜技术”意即从第一年秋季10月份小麦原种播种(生产一代小麦良种)、生长、收获,至第二年6月份
1 wheat, corn seed cover anniversary of the concept of technology “wheat, corn seed cover annual mulching technology ” (hereinafter referred to as “annual coating technology ” meaning from the first year of autumn in October sown wheat seeds Production of a new generation of wheat seed), growth, harvest, to the second year in June