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一、耕田误区:一般人在整田总是带水犁田,其实条件允许,可以干耕,待土晒白后,再放水耙。这样将土壤中磷、钾元素肥晒出来,插下秧生长茁壮。二、插秧之误:许多人认为秧苗插多保险些。其实按“叶蘖”同伸原理:即水稻长四片叶开始分蘖,以后每长一片叶就会长一个分蘖。一般早熟品秧11片叶,中熟12—13片叶,晚熟15片叶以上。又因水稻拔节后就长成是无效分蘖。所以生产中,早熟品种应有4—3个、中熟4—5个、晚熟5—7个有效蘖。又因肥料、水份、阳光等因素限制,往往有效蘖与原理上计算相差2—3个蘖。以中熟为例,一般可分3—4个有效蘖。按亩315万穴每穴插两株基
First, farming misunderstandings: most people in the field always with water plowing, in fact, conditions permitting, you can dry farming, until the soil is white, and then rake. This will be the soil phosphorus, potassium elemental sun out, plug seedlings grow robust. Second, mistaken transplanting: Many people think that more seedlings inserted more insurance. In fact, according to “leaf tiller” with the principle of extension: that is, four-leaf rice began to tiller, after each long a leaf will grow a tiller. General early maturing seedlings 11 leaves, 12-13 in the cooked leaves, late leaves more than 15 leaves. And because the rice after jointing grow into an invalid tiller. Therefore, production, early varieties should have 4-3, 4-5 medium maturity, late maturing 5-7 effective tillers. And because of fertilizer, moisture, sunlight and other factors, the effective tiller and the principle of calculating the difference of 2-3 tillers. To medium maturity, for example, can be divided into 3-4 effective tiller. 3.15 million points per acre inserted two points per base