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宝鸡市秋粮面积约400多万亩,其中夏播玉米约150万亩,夺取夏玉米丰收,对粮食增产具有十分重要的意义。一、抢时早种,争早苗。玉米最宜在23°～24°C中生长,我区月平均气温在25°C左右的为6月至8月(9月上旬后平均气温在20°C以下,不利玉米的生长发育),这段时间,共约百天,能否充分利用这段生长期,是玉米丰产的关键。因此,夏玉米必须抢时早播。宝鸡县西秦大队1973年试验:6月10播种的生育期100天,亩产827斤;6月16日播的生
Baoji City, autumn grain area of about 4000000 mus, of which about 150000 acres of summer sowing corn, to seize the summer corn harvest, the grain yield is of great significance. First, grab the early species, fight early seedlings. Corn is most suitable for growth in 23 ° ~ 24 ° C, the average monthly temperature in my area at 25 ° C for the June to August (after the first ten days of September the average temperature below 20 ° C, adverse growth and development of corn) During this time, a total of about 100 days, can make full use of this growth period, is the key to high yield of corn. Therefore, the summer must grab corn early broadcast. Baoji County, West Qin Brigade 1973 test: June 10 planting period of 100 days, 827 kg per mu; sowing on June 16 Health