环沟高盘膜下输液滴干对龙眼园土壤及树体生长的影响-园艺专业论文.docxVIP

及叶片全氮、磷、钾含量。环沟高盘白膜膜下输液滴干处理的龙眼叶片PSII原始光能转 化效率较高，对其生境的适应性较强，在PSII反应中心的潜在活性较强7且吸收的光能 中用于光合电子传递部分最多，光合特性最强。 5、环沟高盘白膜膜下输液滴干、环沟高盘黑膜膜下输液滴干均能显著增加果实横 径、纵径，显著提高可食率、可溶性固形物、可溶性糖、维生素C等果实品质指标，显 著提高单果重、单穗重，提高单株产量，降低裂果率。 综合分析环沟高盘膜下输液滴干对龙眼园土壤及龙眼生长发育的影响后发现，环沟 高盘白膜膜下输液滴干和环沟高盘黑膜膜下输液滴干均能显著改善龙眼园土壤养分及 水热状况，显著提高龙眼树体养分、水分、果实品质和产量。环沟高盘白膜膜下输液滴 干和环沟高盘黑膜膜下输液滴干对于龙眼提升效果差别不大，但环沟高盘白膜膜下输液 滴干对改善果实品质效果更好，环沟高盘黑膜膜下输液滴干对提高产量效果更明显。 关键词：龙眼；环沟高盘；膜下输液滴干；土壤；营养生长与生殖生长 II 万方数据  Effects of Ring groove high diskUnder-film Drip infusion in trunk on the Soil and Tree-growth of Longan Orchards ABSTRACT The experiment used the technology of drip infusion in trunk on mature Longon trees，set up four treatments as follows：(1)ring groove high disk and drip infusion in trunk under albuginea；(2)ring groove high disk and drip infusion in trunk under black film；(3)ring groove high disk and drip infusion in trunk with non—film；(4)drip infusion in trunk without ring groove high disk and no film(CK)．The primary conclusions of the study are as follows： 1．Ring groove high disk and drip infusion in trunk under black film，ring groove high disk and drip infusion in trunk under albuginea treatment can effectively improve the surface temperature of the soil of longan．When the temperature is low,it is an effective method of ring groove high disk and drip infusion in trunk under black film，or ring groove high disk and drip infusion in trunk under albuginea to heat up and heat preservation on the surface of soil in longan orchard，that is advantageous to the soil root growth；When the temperature is higher，groove high disk and drip infusion in tnmk under black film，or ring groove high disk and drip infusion in trunk under albuginea treatment of the soil average surface temperature as high as more than 3 0 degrees Celsius that exceed the optimum root growth temperature of Longan，SO the best recommendation is not used the way of under-film drip infusion in mmk to manage the soil of Longan orchards，but ring groove high disk and drip infusio