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我省栽培的一些柑桔品种,如夏橙、温州蜜柑、柚等常常开花很多,但座果率极低,生理落果严重,产量不高,是生产上迫切需要解决的一个问题。1975—1976年我们在杨村柑桔场坪塘分场进行了环割及结扎铁线的保果试验。从试验的初步结果看,环割及结
Some citrus cultivars cultivated in our province, such as summer orange, mandarin orange, grapefruit and other flowers often bloom a lot, but the fruit rate is very low, serious physiological decadent fruit, yield is not high, is an urgent need to solve the production problem. From 1975 to 1976, we conducted the fruit preservation test of ring cutting and ligation wire at the Pingtang Branch of Yangcun Citrus Field. From the initial results of the test, ring cutting and knot