论文部分内容阅读
水稻专用叶面喷剂的喷施试验结果表明，水稻植后７—１０天喷施１次４００倍专用叶面喷剂，可促进水稻发根早、返青快，叶色较浓绿，可提前３—５天分蘖，每亩增加分蘖３．８—５．０万条，有效穗增加２．０—３．０万穗，结实率提高３．３％—４．０％，千粒重增加０．３０—０．７６ｇ，植株矮３．０—７．５ｃｍ，增产１２％—１４％。其增产机理为专用喷剂促进水稻根系活力，增加了叶片中叶绿素含量，在灌浆期剑叶中Ｃ１４光合同化物向稻穗中输出率及分布比例明显增加。本所彭志平、黄小红参加部分研究工作。
Spraying test results of special foliar spray of rice showed that spraying 400 times special foliar sprays once daily for 7-10 days after rice planting can promote the early rooting and rejuvenating of rice roots and darker leaf color, 3-5 days tillering, increased tiller 38-50000 per acre, effective panicle increased 2.0-3.0 million spike, seed setting rate increased 3.3% -4.0%, 1000 grain weight increase 0. 30-0.76g, plant short 3.0-7.5cm, yield 12% -14%. The mechanism of increase yield was that the special spray promoted the root activity of rice and increased the content of chlorophyll in the leaves. The output rate and distribution proportion of C14 photosynthetic compounds in rice leaves at filling stage increased obviously. Our institute Peng Zhiping and Huang Xiaohong participate in some research work.