管道输液对龙眼的生长及土壤pH值的影响

Effects of Pipeline Infusion on Longan Growth and Soil pH

本试验以‘桂香’、‘早熟一号’龙眼品种为试材,通过管道输液施肥和常规土施进行比较。结果表明:管道输液显著提高了枝梢长度,粗度、叶绿素含量,有效地降低了雌花落花数和落果数,显著减缓了土壤酸化的程度。‘桂香’和‘早熟一号’龙眼的输液处理比土施处理的梢长分别提高了3.94 cm、4.63cm,枝梢粗度(直径)分别提高了1.29 mm、0.42 mm,叶绿素含量分别提高了0.3 mg.g-1Fw、0.22 mg.g-1Fw。从‘桂香’品种中雌花落花总数占雌花总数的比例看,输液处理为40.36%,输液+土施处理为45.09%以及土施处理为50.49%。在土壤pH值指标上,‘桂香’和‘早熟一号’各处理的值为,输液处理:4.63和4.79,输液+土施处理:4.3和4.5以及土施处理:4.28和4.49。

In this experiment, Guixiang and Zaoshul longan varieties are the test materials, pipeline infusion fertili-zation and conventional soil applied to compare. The results showed that ： the way of the infusion drip fertilization sig-nificantly enhanced the shoot length, diameter, chlorophyll content, and effectively reduces the number of female flowers Petals and fruit drop number, greatly slow down the extent of soil acidification. Guixiang and Zaoshul longan infusion drip fertilization treatment than the soil application treatment tip length were increased by a 3.94cm, 4. 63cm; Guixiang and Zaoshul longan infusion drip fertilization treatment than the roughness of the soil application of the shoot length were increased by a 1.29 mm, 0. 42 mm; Guixiang and Zaoshul longan infusion drip fertilization treatment than soil application of the chlorophyll content were increased by the 0. 3 mg · g^-1 Fw 0. 22 mg· g ^- 1Fw ; the total number of female flowers falling in the Guixiang varieties accounted for the perspective of the proportion of fe-male flowers the total number of transfusion treated as 40. 36% infusion ＋ soil application of treatment was 45.09% , and soil application of treatment was 50. 49%. Indicators of soil pH, Guixiang and Zaoshul longan infusion drip ferti-lization treatment value is processed, the infusion treatment ： 4. 63 and 4. 79, infusion ＋ soil application of treat- ment ： 4. 3 and 4. 5 as well as soil applied treatment ： 4. 28 and 4.49.