沙田柚配施钾及不同形态镁、硫肥的效应研究  

Effect of combination of K and different forms of Mg and S on Shatian pumelo

作　　者：姚丽贤[1] 周修冲[1] 侯剑泉 杨敬 蔡永发[1] 陈婉珍[1] 

机构地区：[1]广东省农科院土壤肥料研究所,广州510640 [2]梅州市农业局,梅州514071

出　　处：《土壤肥料》2003年第6期21-24,共4页Soils and Fertilizers

基　　金：中 -加合作研究项目资助

摘　　要：本文研究了钾肥及不同形态的镁、硫肥配施对沙田柚的营养生长、柚果产量、品质及效益的影响,结果表明:施镁可大大减轻沙田柚叶片的缺镁症状;在土壤含钾、硫较丰富,镁含量中等的情况下,施用镁、硫肥配施仍然有较好的增产、增效作用,在一定程度上改善了柚果品质;配施碳酸镁及硫磺的产量和经济效益优于硫钾镁肥。The influences of K and different forms of Mg, S combination application on vegetative growth, fruit yield, fruit quality and plantation profits of Shatian pumelo were studied The results showed that: Mg application considerable alleviated Mgdeficient symptom on leaf of Shatian pumelo; while soil in the orchard contained rich K and S and medium Mg, yield and plantation profits of Shatian pumelo still markedly increased by combination of Mg and S, and fruit's quality was improved as well However, combination of MgCO3 and sulfur did better than SulPoMag on fruit yield and plantation profits

关 键 词：沙田柚 钾肥 镁肥 硫肥 配方施肥 肥效 营养生长 产量 品质 土壤肥力 

分 类 号：S666.4[农业科学—果树学]