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四、结果园的增产当前,影响长野县苹果结果园产量增长的原因,主要有以下9个原因:1、因腐烂病使树冠体积减少;2、高接更新树枝量不足;3、缺株,成、幼树混杂;4、高接病和纹羽病的危害;5、树体的老衰化、老龄化;6、土壤恶化,地力低下;7、重视品质,重剪限制座果;8、重视生食,商品率低下;9、栽培省略化。据长野县农业综合试验场1975年对须坂市和三水村的调查,良好结果园仅占32.3～37.0％,较差的占33.0
Fourth, the results of the increase in yield Park Currently, the impact of Changhong County, the output of apple orchards causes the growth, mainly in the following 9 reasons: 1, due to decay of the crown to reduce the volume; 2, high access to update the lack of branches; 3, Into, young trees mixed; 4, high incidence of disease and the harm of the pattern feather disease; 5, the old tree aging, aging; 6, soil deterioration, low ground force; Emphasis on raw food, low commodity rates; 9, cultivation omitted. According to a survey conducted in Nagano Agribusiness Experimental Zone in Suzaka City and Sanshui Village in 1975, a good result garden accounted for only 32.3-37.0% and a poor one accounted for 33.0%