二晚田管“五问”

• 作 者: 李会兴
• 机 构: 江西省农科院作物所栽培室,
• 出 处: 江西农业科技
• 发表日期: 1982年08期
• 关键词: 水稻播种面积 水稻总产 高产田块 晒田 增产潜力 白叶枯病 寒露风 颖花数 包颈 抽穗扬花期

我省二晚栽插面积约为2100万亩左右,占水稻播种面积的45%,但历年产量仅占水稻总产的32%左右,一般单产要比早稻低百斤以上。二晚产量高低在地区间很不平衡,高产县(市)平均亩产600多斤,而低产县(区)仅200多斤;田块间相差也很悬殊,高产田块亩收千余斤,低产田块亩收不过一、二百斤。说明二晚蕴藏着极大的增产潜力。二晚产量不如早稻高,这是与二晚的生产条

Two nights planting area in our province is about 21 million mu, accounting for 45% of the sown area of ​​rice, but the annual output only accounts for about 32% of the total output of rice, the general yield lower than the early rice more than 100 pounds. The output level of the two nights is very uneven in the region. The average yield per mu of more than 600 kilos of high-yielding counties (counties) and only 200 kilos of low-yielding counties (districts) are also disproportionate. The output of high- Mu yield but low yield field one, two hundred pounds. Shows that there is a huge potential yield increase two nights. Two nights later than the early rice production is high, which is with two nights of production