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广东省农科院近几年来的研究指出:矮秆品种具有高产耐肥抗倒性能,适于高产栽培(亩产八百斤或以上)。目前推广最多的为广场矮品系和珍珠矮品系。实践证明,在高产栽培中,氮肥有决定性作用,而水稻叶色对氮肥施用和吸收的反映很敏感,因此可根据叶色的变化来进行水肥管理。据他们的经验,叶色可分大乌、浅乌、绿青、淡青、绿豆青、青黄等六级。大乌及青黄属于不正常的叶色。正常的叶色,浅乌、绿青称为黑;淡青、绿豆青称为黄。上述早稻矮秆型中熟品种,在高产栽培时其
Guangdong Provincial Academy of Agricultural Sciences in recent years pointed out that: dwarf varieties with high yield resistance to lodging resistance, suitable for high yield cultivation (yield 800 pounds or more). At present, the most widely promoted square short lines and pearls Department of pearl. Practice has proved that in high-yielding cultivation, nitrogen fertilizer has a decisive role, and rice leaf color on the application and absorption of nitrogen fertilizer is very sensitive, so changes in leaf color to water and fertilizer management. According to their experience, leaf color can be divided into large black, light black, green, light green, green beans, yellow and other six. Large black and yellow are not normal leaf color. Normal leaf color, light black, green is called black; light green, mung bean green known as yellow. The above-mentioned short-maturing early maturing rice varieties, its high yield cultivation