摘要
PP333和B9可有效地控制肥城桃幼旺新梢生长量,显著提高花芽质量、成花率和产量。其中5月中下旬和6月中下旬分2次喷布2000×10-6(2000ppm)PP333效果也明显;5月上旬土施PP333以每m2树冠投影面积0.3~0.4g有效成分为宜。
Foliar spray and soil application with PP333 or B9 to younglings (2-yr-old) and vigorously growing trees (4-yr-old) of peach cv. Feicheng effectively inhibited the vigor of shoots, significantly increased fruit bud quality and flower formation with higher yield. Among the treatments, the double foliar spray with B9 at 2000 ×10-6 in mid-late May and mid-late June gave the best result, followed by a Single foliar spray with PP333 at 1000×10-6 in mid-late May. A similar result was achieved by soil application with PP333 at 0. 3~0.4g Per square metre of crow projected area.
出处
《落叶果树》
北大核心
1993年第2期12-14,共3页
Deciduous Fruits
关键词
肥城桃
生长延缓剂
应用
桃
peach tree cv. Feicheng, retardants B9 and PP333