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控蘖剂正确使用 ,能有效减少无效分蘖 ,优化群体结构 ,提高成穗率 ,实现增产。我们于 1999年起连续两年进行了相关试验 ,效果明显 ,趋势一致。1材料与方法1.1试验设置 第一年使用时期分五叶一心 (Ａ1)和六叶一心 (Ａ2 ) ,使用量为亩用 5 0 ｇ(Ｂ1)和 75 ｇ(Ｂ2 ) ,加对照。第
Proper use of tiller, can effectively reduce ineffective tillers, optimize the population structure, increase the rate of ear, to increase production. We conducted the relevant tests for two consecutive years since 1999, with obvious effects and consistent trends. 1 Materials and methods 1.1 Test Set the first year of use of five points and a heart (A1) and six leaves one heart (A2), the amount of acres with 50 g (B1) and 75 g (B2) plus control. No.