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研究了幼果期喷施氨基酸钙等6种不同钙肥对防治套袋黄冠梨果皮褐斑病的效果。结果表明,幼果期喷施钙肥能显著降低套袋黄冠梨果皮褐斑病的病果率及病情指数,供试的6种钙肥以幼果期连喷施3次氨基酸钙1 000倍液或CA2000钙宝700倍液防效最佳,果实采收时病果率分别为3.03%、4.91%,病情指数分别为1.33、1.99,而对照果实病果率为14.93%,病情指数为6.53;0～1℃条件下冷藏120天后,病果率、病情指数也显著低于对照。
The effects of 6 different calcium fertilizers, such as calcium amino acid, applied in the young fruit stage on the prevention and cure of brown spot on the peel of bagged Huangguan pear were studied. The results showed that the application of calcium fertilizer in young fruit stage could significantly reduce the fruit disease rate and disease index of brown spot of bagged Huangguan pear fruit. The 6 calcium fertilizers tested were sprayed with 3 times of calcium amino acid 1000 Times or CA2000 calcium treasure 700 times the best control effect, fruit recovery rate was 3.03%, 4.91%, the disease index were 1.33,1.99, respectively, while the control fruit disease rate was 14.93%, the disease index 6.53; After cooling for 120 days at 0 ~ 1 ℃, the disease rate and disease index were significantly lower than those of the control.