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喷施坐果防落灵提高板栗结实率的试验试验地为砂石山阳坡梯田，海拔５１０米，沙壤土，土层厚度０．３～０．５米。供试板粟为８年生华丰和华先，株行距２米×３米。试验设坐果防落灵４００倍、５００倍、６００倍３个浓度，以清水为对照，共４种处理，每处理５次重复。全...
Spraying fruit drop down to improve the rate of chestnut seed setting test ground for gravel hill terrace, 510 meters above sea level, sandy loam, soil thickness of 0.3 to 0.5 meters. 8-year-old for test panels Huafeng and Hua Xian, spacing of 2 meters × 3 meters. Test set anti-drop fruit 400 times, 500 times, 600 times the three concentrations of water as a control, a total of 4 kinds of treatment, each treatment 5 times repeated. all...