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以9年生梨枣树(Ziziphus jujuba Mill.)为试材,在无灌溉条件下,通过2种旱作管理技术处理,研究节水型修剪技术和竹节式聚水沟技术对梨枣枣吊、坐果及产量的影响。结果表明:节水型修剪技术与竹节式聚水沟技术的单独及联合实施,均提高了结果枣吊数量及枣吊的坐果能力,提高梨枣的产量;与对照相比,节水型修剪技术(HL)可提高产量83.14%,竹节式聚水沟技术(CJ)可提高产量38.44%,节水型修剪技术+竹节式聚水沟技术(HJ)效果最好,产量可提高155.00%。研究认为,在旱地无灌溉条件下的陕北黄土丘陵区应该以节水型修剪为主,最好结合节水型修剪在林下采用聚水沟措施。
Taking the 9-year-old Ziziphus jujuba Mill as the test material, under the condition of no irrigation, through two types of dry-farming management techniques, the effects of water-saving pruning technique and bamboo-type gutter technique , Fruit set and the impact of production. The results showed that both the water-saving pruning technique and the bamboo-type gutter technique could improve the fruit-setting capacity and the fruit yield of Ziziphus jujuba cv. Pruning technology (HL) can increase yield by 83.14%, bamboo-type gutter technology (CJ) can increase yield by 38.44%, water-saving pruning technology + bamboo gutter technology (HJ) 155.00%. It is suggested that water-saving pruning should be the main part of the loess hilly region in Northern Shaanxi under the condition of no-irrigation in dry land. It is advisable to adopt gully measures under the forest with water-saving pruning.