叶面喷施钾肥对大豆品质及产量影响的研究

Effect of spraying kalium on leaves on the quality and yield of soybean.

于大豆开花后进行定次定量叶面喷施钾肥,结果表明品种与喷肥次数,喷肥量三者之间的互作对大豆蛋白质含量影响达到 显著水准,东农42号以叶面喷施钾肥三次,公顷用量30kg时蛋白质含量最高,东农163以叶面喷施钾肥两次,公顷用量30kg时 蛋白质含量最高。叶面喷施钾肥量对大豆油分含量影响表现极为显著,随喷肥量增加,大豆油分含量呈下降趋势。而各种处理对 大豆蛋白质和油分总量影响不显著。叶面喷施钾肥量对大豆百粒重影响达到极显著水准,随着喷肥量的增加,大豆百粒重呈明显 增加的趋势。同样,叶面喷施钾肥量对大豆产量的影响达到极显著水准,随着喷肥量增加,大豆产量呈明显上升趋势;喷肥次数 对大豆产量影响较明显,随叶面喷肥次数增加,大豆产量呈上升趋势。由F值测验可知:喷施钾肥量对大豆品质及产量的影响较 大的有百粒重(F=9.39**),产量(F=9.00**)和油分(F=5.17**)。喷肥次数只对大豆产量影响显著。

There is a significant effect on the content among protein for the interaction of the variety, the spraying times and the amount. Dongnong 42 reached its highest concent of protein applying with 30kg K2SO4 / hectare for three times, and Dongnong 163 reached the highest content for two times. The experiment had a very significant effect on the content of oil. When increasing spraying amount, the content of soybean oil will be dropped sharply. There is no significant effect on the total content of protein and oil. The spraying amount had a very significant effect on the seed size. When increasing spraying amount, the seed size was rising sharply. Also on the yield, when increasing spraying amount, the yield will be increased. The spraying times had a significant effect on the yield. When the times increasing , the yield would be rising obviously. Through comparing F value, the most significant of the spraying amount of kalium for the quality and yield of soybean is seed size (F=9.39**) , yield (F=9.00**) and oil (F=5.17**). The spraying times had a significant effect only on the yield.