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当前,如何合理的确定果树负载量,防止大小年结果,实现高产、稳产、优质,应确定两个问题:一是找出一个树体负载量指标,二是找出一个较好的调节花、叶芽比例的办法。我们经过1978～1979年对几个盛果期苹果园的调查,认为盛果期金冠树负载量可以其主干横断面积每 cm~2的留果量0.77斤(即0.77斤/cm~2)为指标。调整花、叶芽比例的诸方法中,从节省树体养分的角度来看,以疏花芽最好。但冬剪时辩别健花芽和冻坏花芽往往不易准确,所以疏除花芽应于早春萌芽后进行。为了验证上述指标和办法的效果,我们于
At present, two problems should be identified: how to find out a tree body load index, how to find out a better regulation flower, how to adjust the fruit tree load, The ratio of leaf buds approach. After 1978 ~ 1979, we conducted a survey of several orchards of apple orchards in full bloom and found that the loading capacity of crown tree could reach 0.77 kg (0.77 kg / cm ~ 2) per cm ~ 2 of the trunk cross-sectional area index. Adjusting the flower, leaf bud ratio of the methods, from the perspective of saving tree nutrients to flower buds the best. However, when winter flower bud defibrillators and frozen flower bud is often not easy to identify, so sparse bud should be carried out in early spring after germination. In order to verify the effectiveness of the above indicators and methods, we at