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一、喷施钼肥。钼能促进花生根瘤菌的繁殖并提高固氮能力,又可以控制茎、枝陡长,协调营养生长和生殖生长的关系,促进荚果充实饱满。在苗期和盛花期,每亩用0.1～0.2％钼酸铵溶液50～75公斤喷施叶面。此外,在播种时每公斤花生种拌和0.5～1克钼酸铵,更有效。 二、喷施硼肥。经常发生干旱的地区,特别容易引起缺硼。由于作物吸去硼又未及时补给,加以长期施用氮、磷化肥,故使土壤中有效硼含量降低。硼能促进花粉发芽,有利于传粉受精,提高花生的结果率,增强叶绿素,增强光合作用,
First, spraying molybdenum fertilizer. Molybdenum can promote the growth of peanut rhizobia and improve nitrogen fixation ability, but also can control the stems, branches steep long, to coordinate the relationship between vegetative growth and reproductive growth, and promote full pod full. In the seedling and flowering period, with 0.1 ~ 0.2% ammonium molybdate solution 50 ~ 75 kg per acre foliar spray. In addition, it is more effective to mix 0.5 to 1 g ammonium molybdate per kilogram of peanut seed at planting. Second, spraying boron fertilizer. Areas where drought often occurs are particularly prone to boron deficiency. As crops absorb boron and have not been timely supply of nitrogen, long-term use of nitrogen, phosphorus fertilizer, so that the effective boron content in the soil decreased. Boron can promote pollen germination, is conducive to pollination and fertilization, improve the rate of peanut results, enhance chlorophyll, enhance photosynthesis,