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目前各地苹果施用基肥,大都在金冠、红星等品种采收后进行,一般在9月中、下旬开始,但是根据现有调查和多年实践表明,夏季施基肥的效果要好于秋季.我县庄町公社邢家庄大队,从1973~1976年连续四年以13年生红星品种,作不同施肥时期的对比试验.施肥时期分四个:(1)7月下旬;(2)8月下旬;(3)9月下旬;(4)11月下旬.每个时期试验树12株,每年株施猪圈肥400斤.1975~1976两年的平均产量,7月下旬施肥的为249.9斤,8月
At present, the application of basal fertilizer by apple is mostly carried out after the harvest of Golden Delicious and Red Star, etc. Generally, it begins in the middle and late September, but according to the existing investigation and years of practice, the effect of summer basal fertilizer is better than that of autumn. Commune Xingjiazhuang brigade, from 1973 to 1976 for four consecutive years with 13-year-old Red Star varieties for different fertilization period comparative test fertilization period divided into four: (1) late July; (2) late August; (4) In late November, 12 test trees were used in each period, and pigs were fertilized 400 kg per year. The average yield from 1975 to 1976 was 249.9 kg in late July and August