随着冬季的来临,灌溉季节也即将结束。为保证灌溉系统在下一个灌溉季节的正常使用,应对整个灌溉系统(包括底阀、泵、动力设备、过滤系统、施肥系统、田间阀门、管道系统等)进行全面的检查和维护并将相关设备贮藏入库。
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苹果品种信息
富士是19 世纪 30 年代,由日本青森县 Tohoku Research Station in Fujisaki 通过 Ralls Genet 和 Red Delicious 杂交获得 1962 年走向市场 。 中国苹果种植品种 7 0% 以上为富士。
苹果的调亏灌溉试验
a) Crop Evapotranspiration b) Net Irrigation Water Requirements c) Management Allowed Soil-Water Depletion d) Auxiliary Water Requirements e) Water Requirements for Soil-Water Budget/Balance Analysis f) Water Sources
Hail netting reduces sunlight levels by up to 25%, however the apple tree canopy itself can reduce sunlight levels by up to 95% or more. It is tree vigor that determines how apple trees respond to netting, and fruit size on vigorous trees under hail netting will be reduced if inappropriate pruning strategies are used that encourage excessive shoot growth.