论文部分内容阅读
近几年,我们针对“高群体,弱个体”栽培上的弊病,进行了匀疏播,培育带蘖壮秧,科插2—3株,亩插基本苗数12—15万,前期稳促施肥,最高苗数低(小穗型早熟种39—41万、中迟熟种28—30万),中期苗数平稳不封行,主要靠分蘖成穗(主、蘖穗比为1:3—4),个体健壮,穗大粒多的“低群体、壮个体”栽培试验示范,取得了显著效果。2年3造的示范田,亩产超千斤。1980年10.25亩“广二104”,平均亩产1038.2斤;“穗选一号”1.83亩,亩产1015.3斤。1982年早造4.57亩“风选4号”(早熟种),亩产1147.7斤;3.79亩“桂朝23号”(中熟种)亩产
In recent years, we focus on the “high population, weak individuals,” the cultivation of ills, carried out a smooth spread sowing, cultivating sprout sprouting seedlings, Branch plug 2-3, mu inserted basic seedlings number of 12-15 million, steady early Fertilization, the highest number of seedlings low (spikelet precocious 39-4100, mid-late mature 28-30 million), mid-term stable number of seedlings do not pack, mainly by tillering into the ear (main, tillering ear ratio of 1: 3 -4), individual robust, large spike large number of “low population, strong individual” cultivation test demonstration and achieved remarkable results. 2 years 3 made the demonstration field, super-kg per mu. In 1980 10.25 acres of “Guang II 104”, the average yield of 1038.2 pounds; “Sui election number one” 1.83 acres, 1015.3 pounds per mu. As early as 1982, 4.57 mu of “Fengxuan No.4” (precocious species) was made as early as 1147.7 kg of mu per mu; 3.79 mu of “Guixin 23”