我场1975年种植小麦6,835亩,平均单产517.6斤,比丰收的1974年平均单产430.3斤,增长20.3％。 1975年小麦生育期间的气候特点是:2、4、5月份气温偏低,3月份偏高,6月份正常偏高,7月上旬气温不稳定,忽高忽低。在这样的气候条件下,对小麦的生长,其有利的因素是:3月份气温、地温偏高,尤其是第十七候(3月21～25日)候温比1974年高1.8℃(见表1),麦种在地里萌动、生根、发芽较快,出苗早,苗齐、苗壮,与1974年相比,墨 In my field, 6,835 mu of wheat was planted in 1975, with an average yield of 517.6 kg, an average yield of 430.3 kg or 20.3% over the bumper crop in 1974. The climatic features of wheat during 1975 were: low temperatures in February, April and May, high in March and normal in June, with unstable temperatures in early July and fluctuating high and low. Under such climatic conditions, the favorable factors for the growth of wheat are: March temperature and high ground temperature, especially the 17th (March 21-25) waiting temperature is 1.8 ℃ higher than that of 1974 (see Table 1), wheat germination in the ground, rooting, germination faster, early emergence, seedling Qi, Miao Zhuang, compared with 1974, ink