论文部分内容阅读
针对北流县荔枝低产园比例大这个突出的问题,结合国家“七·五”优质荔枝商品生产基地县的建设,从1986年起先后技术改造荔枝低产园21570亩。改造区(其中六个果场)在改造期平均每年秋梢株率达92.2%、成花株率达85.4%、结果株率达83%、无蛀虫果率达97.6%,分别比常规管理的对照区高23.1,14.1,21.6,10.1个百分点。改造区由改造前三年平均每年亩产128.9kg 和株产8.59kg,增长到改造期三年平均每年的381.5kg 和25.3kg,增长196%。面对照区(五个果场)由同时期(与改造区同期)亩产131.2kg 和株产7.17kg 增长到298.3kg 和16.3kg,增长127%,改造区技术改造作用取得的亩产、株产增长率为66.6%,经济效益和社会效益显著。
In view of the prominent problem of large proportion of low-yielding litchi garden in Beiliu County, combined with the construction of the national “7.5” high-quality litchi commodity production base county, 21570 mus of low-yielding litchi plant has been transformed since 1986. In the reformed area (including 6 fruit farms), the average annual autumn shoot rate was 92.2% and the rate of flowering plants reached 85.4% in the reconstruction period. The result rate was 83% and the rate of non-boreal fruit was 97.6% Control area high 23.1,14.1,21.6,10.1 percentage points. In the three years before the transformation, the average per mu yield 128.9kg and plant yield 8.59kg per year, up to 381.5kg and 25.3kg, an increase of 196% over the three-year average of the transformation period. The area of control (five fruit farms) increased from 131.2 kg per mu and 7.17 kg of strains produced to 298.3 kg and 16.3 kg, an increase of 127% over the same period (with the renovation area) Plant growth rate of 66.6%, significant economic and social benefits.