为了探索早稻“大粒早”品种栽培的高产技术,一九七九年晚季,我们采用直点播形式,在科技组四号田进行高产栽培试验。经地、县、社、队四级验收,面积1.10亩,共收湿谷1609.7斤,按85％折干率计算,平均亩产1243.9斤。现将主要栽培技术总结于下:一、“大粒早”倒种直播栽培特点:1.有效穗数多,穗粒数较少,千粒重高,不易掉粒:有效穗多,平均穗粒数较少,这是直播栽培生产量结构上的共同特点。四号田亩有效穗41.3万,每穗平均实粒数37粒,加上“大粒早”粒大(千粒重40克)的固有特性,因而获得了高产。更可喜的是“大粒早”倒种栽培,由于晚季气候特点同早季迴 In order to explore the high-yielding cultivation techniques for “early grain” varieties of early rice, in the late seventy-seventh season, we conducted direct-sowing and high-yielding cultivation experiments at No. 4 Tianning Science and Technology Group. The prefectural, county, community and team four levels of acceptance, an area of ​​1.10 acres, a total of 1609.7 kg received wet valley, according to 85% discount rate, the average yield of 1243.9 kg. Now the main cultivation techniques are summarized as follows: First, the “big grain early” direct seeding cultivation characteristics: 1 effective spike number less grains per spike, grain weight is high, not easy to fall grain: effective spike, the average number of grains per spike Fewer, this is the common feature of the structure of direct seeding cultivation. No.4 Tianmu effective ear 41.3 million, the average number of grains per panicle 37, plus the “big grain early” grain size (grain weight 40 grams) of the inherent characteristics, resulting in high yield. Even more gratifying is the “big grain early” inverted cultivation, due to late-season climatic characteristics with the early season back