今年河南省小麦秋播的品种布局,总的原则是北部麦区以半冬性品种为主,晚茬搭配弱春性品种;中南部麦区以弱春性品种为主,早茬搭配半冬性品种。注意适当压缩弱春性品种,适期播种,防止弱春性品种过分北移或播期不当引发冻害给生产造成损失;注意品种的成熟期,选用中早熟品种,可避免 This year, Henan Province, autumn planting varieties of wheat, the overall principle is that the northern wheat dominated by semi-winter varieties, late spring with weak spring sex varieties; wheat in central and southern regions with weak spring-based varieties, early crop with half winter Sexual breed. Pay attention to the appropriate compression of weak spring varieties, sowing the appropriate time to prevent the weak spring sex breeds north or improper sowing caused by frost damage caused by the loss of production; pay attention to the maturity of the species, the choice of precocious varieties, to avoid