【摘要】 针对黄淮麦区近年来小麦冻害频发问题,选用当地两类强筋小麦主导品种(半冬性新麦19和弱春性郑麦9023),进行播期播量组合选优试验.每类品种以当地群众习惯播期为中基,差值6d提前和推后各设2个播期处理;以当地群众习惯播量为中基,播量差值50%各设1个播量处理.结果表明:豫北地区气候条件下,半冬性小麦品种10月7日播种、播量7kg/667m2为最优组合;弱春性小麦品种10月13日播种、播量8kg/667m2为既高产又安全(预防冻害)的最优组合.更多还原

【Abstract】 To wheat freeze injury happened frequently in Huang-huai wheat area in recent years,optimization and reorganization experiment on sowing date and sowing density was carried on by two kinds of local strong gluten wheat cultivars (half-winter Xinmai 19 and weak-winter Zhengmai 9023).Sowing dates of every cultivar were established for 3 treatments,the dates for local mass often used,6 days ahead and later.Sowing density was based on that local mass often used,then 1 sowing density was established on sowing density by gap value 50%.The results showed that sowing date is October 7,the sowing density is 7 kg per 667 square meters for half-winter wheat cultivar as the most appropriate reorganization.and for weak-spring strong gluten wheat cultivar,the most appropriate reorganization is that sowing date is October 13,sowing density is 8kg per 667 square meters in the northern region in Henan Province .更多还原