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为完善浙北地区大麦连作稻“双抛”高产配套技术,1996年我们继续进行不同茬口期产量对比,叶蘖追踪观察,双抛品种组合及群体调控措施的系列试验研究,现将结果报告如下。1产量表现 不同茬口期抛秧与手栽产量从表1、2可见,抛秧对秧龄期要求严格,最佳秧龄期为20天,3个移栽期平均亩产比手栽最佳秧龄35天平均亩产增28％,比手栽30天秧龄平均亩产增9.06％;抛秧25天秧龄平均亩产比手栽35天秧龄略减,比手栽30天秧龄平均亩产增4.7％。晚粳特早熟晚粳“丙93
In order to perfect the high-yielding “double-throwing” technology of barley continuous cropping in northern Zhejiang, we conducted a series of experimental researches on yield contrast, leaf-tracing observation, double-throwing variety combination and population regulation in 1996. The results are reported as follows . 1 Yield performance Crop stubble throwing and hand-planted yield can be seen from Table 1, 2, throwing seedlings on the strict requirements of the seedling age, the best seedling age of 20 days, 3 transplanting average yield per plant than the best 35 Average daily output per mu increased by 28%, 30 days than the hand-planted seedling average yield 9.06%; throwing 25 days seedling average mu yield 35 days than the planted seedling slightly less than the hand-planted 30 days seedling average mu yield by 4.7% . Late japonica especially early late japonica "C 93