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我场位于长江下游,是个冲积平原,大部分为沙壤土。由于土壤偏沙,水稻育秧秧龄较长,管理有时跟不上,每年总有相当部分秧田拔秧困难。一是工效不高,甚至两人拔秧供不上一人插秧;二是劳动强度较大,难拔;三是损伤较重,插后易枯黄死亡。为了解决拔秧困难的问题,我们曾进行多项试验,结果以二甲四氯处理秧苗的效果较好,秧好拔,可提高工效1—2倍,植伤轻,活棵快。经处理的秧苗,原老根剩下约2厘米长,其余部分基本烂断,同时进发大量的新根。
My field is located in the lower reaches of the Yangtze River, is an alluvial plain, most of sandy loam. Due to the soil partial sand, rice seedling seedling age longer, sometimes managed to keep up, there is always a considerable part of seedling seedling difficult. First, ergonomics is not high, and even two people pulling rice seedlings can not be on the same person transplanting; Second, labor-intensive, difficult to pull; Third, heavier damage, easy to die after plugging yellow. In order to solve the difficult problem of pulling seedlings, we have carried out a number of tests. The results showed that the effect of the seedlings treated with MCPA was better and the seedlings were better, which could increase the efficiency by 1-2 times. Treated seedlings, the original remaining roots about 2 cm long, the remaining part of the basic rotten off, while a large number of new roots.