论文部分内容阅读
随着麦棉两熟面积的扩大,棉茬晚播小麦面积也相应增加。为进一步提高晚茬小麦的产量,我们进行了晚播小麦大面积综合技术开发,并做了一些试验研究,初步摸清了晚播小麦的一些生育特点及相应的栽培技术。一、生育特点(一) 晚播对出苗和叶片生长的影响小麦从播种至出苗的时间主要受积温制约,一般需要达到120℃左右的有效积温。我市10月下旬、11月上旬日平均气温比10月上旬分别低4.4℃和6.9℃,随着播期的推迟,
With the expansion of wheat-wheat double-cropping area, the area of wheat stubble in cotton stubble increased accordingly. In order to further improve the yield of late-crop wheat, we conducted a large area comprehensive technology development of late-sowing wheat and did some experiments to find out some characteristics and corresponding cultivation techniques of late-sowing wheat. First, the characteristics of fertility (A) of late-sowing on the emergence and leaf growth Wheat from sowing to emergence of the time mainly by the temperature control, generally need to reach about 120 ℃ effective accumulated temperature. The average daily temperature of the city in late October and early November were 4.4 ℃ and 6.9 ℃ lower than those in early October, respectively. With the delay of the sowing date,