镁肥在荔枝和柑橘上的施用效应  

Application effect of magnesium fertilizer on litchi and citrus

作　　者：姚丽贤[1] 李国良[1] 许潮漩 周修冲[1] 

机构地区：[1]广东省农科院土壤肥料研究所,广东广州510640 [2]广州市林业局增城林场,广东广州510640

出　　处：《磷肥与复肥》2006年第4期76-78,共3页Phosphate & Compound Fertilizer

摘　　要：土壤镁素已逐渐成为提高广东水果产量和品质的重要障碍因子。本文研究了镁肥对荔枝和柑橘类水果的施用效应。田间试验结果表明：在土壤缺镁的情况下，配施适量镁肥可使荔枝增产11．4％～33．3％，增收10．8％～37．5％；在土壤镁硫均缺乏的条件下，荔枝施用硫钾镁肥增产增收效果优于氯化镁。槿柑适施镁肥比不施镁肥处理显著提高产量，果实品质提高，增收效果好。沙田柚配施不同种类镁肥，以硫酸镁的增产增收作用最好，碳酸镁增产作用次之，但由于成本较高，增收效果不及硫钾镁肥。The effect of magnesium on litchi and citrus fruit are studied, the fiela trial results snow me following： in Mg deficient soils, adequate Mg input will give an increase in yield of 11.4%-33.3% with economic benefit income of 0.8%-37.5%; in Mg ＆ S deficient soils, magnesium potash sulfate is better than magnesium chloride for litchi. Adequate magnesium is good to the yield and quality of the product for citrus fruits, compared with no Mg treatment. Magnesium sulfate gives the best response to yield and quality, and magnesium carbonate ranks the second for Shatian pomelo, however their economic benefits are lower than magnesium potash sulfate for high costs.

关 键 词：镁肥 荔枝 柑橘 施用效应 

分 类 号：S667.1[农业科学—果树学] S666[农业科学—园艺学]