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一、选用适宜晚播的品种晚播小麦生长发育期间积温少,出苗慢,分蘖迟,起身晚,成熟也晚,必须选用相适应的春性品种,春性品种因为阶段发育进程快,春化时间短,起身早,幼穗分化时间短、强度大容易形成大穗可以弥补晚播小麦的弱点。因此选用对路品种是提高晚播小麦产量的一项极为重要的措施。经过多年多点品种筛选,当前较好的晚播小麦品种大致可划分为三组。(一)晓播高产组这类品种大多属春性,杆矮抗倒、耐肥耐水、抗病早熟、穗大粒多,丰产性能较好,亩产水平350公斤以上。适于河南省高水肥区偏晚种植。较适宜的晚播期范围,北、中部一般10月下旬
First, the selection of suitable late-sowing varieties of late-sowing wheat during growth and development less accumulated temperature, emergence slow, late tiller, got up late, mature late, we must choose the spring varieties, spring varieties because of stage rapid development process, vernalization Short time, get up early, young spike differentiation time is short, strong and easy to form large ears can make up for the weakness of late-sowing wheat. Therefore, choosing the right species is an extremely important measure to increase the yield of late-sowing wheat. After many years of more varieties of screening, the current late-sowing wheat varieties can be roughly divided into three groups. (A) Xiaowu high-yielding group Most of these varieties are spring, pole short down, resistant to water, disease-resistant precocity, spike large grain, high yield performance better, more than 350 kg per mu. Suitable for high fertility area in Henan Province partial late planting. More suitable range of late sowing, north, central general late October