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试验时间是1972—1978年;试验地点在季米里亚捷夫农学院试验站。试验园于1968年定植,品种为安托诺夫卡,栽植距离4×5米,砧木为安托诺夫卡实生苗。1976年以前,仅用修剪的方法剪除病枝;1976年对朝向行间生长的枝条进行短截修剪,以缩小树冠体积。果园采用常规管理农业技术措施。试验地段的土壤为生草——灰化土。矮壮素(浓度0.6%)处理有:未处理(对照);处理1 每年处理,花后两周进行第一次喷布,尔后每隔两周喷一次;1976年以前,每
The test period was from 1972 to 1978; the test site was at the test station of the Jekyll-Teague Agricultural College. Test garden planted in 1968, the varieties of Antonov card, planting distance of 4 × 5 meters, rootstocks Antonov card seedlings. Before 1976, the diseased branches were cut only by pruning; in 1976, the pruning of branches growing towards the intercourse was carried out to shorten the canopy volume. Orchard management practices using conventional agricultural technology. Soil in the test area is raw grass-ashified soil. Chlormequat (0.6% conc.) Treatments were: untreated (control); treatment 1 was treated annually, first for two weeks after flowering, and once every two weeks thereafter; before 1976,