摘要
以16年生龟井温州蜜柑（Citrusunshiu Marc．）为试材，考察施用石灰对柑橘园酸性黄棕壤的土壤养分有效性以及树体养分和果实品质的影响。结果表明：施用石灰（1．5kg／株）显著提高不同土层土壤的pH值，其中0～20、20～40、40--60cm土层分别较对照提高0．87、0．99、0．47个pH单位；增加土壤有效N、P、Ca、Mg含量，其中耕层土（0～20cm）增加幅度分别为30．82％、71．13％、64．06％、14．27％；且提高柑橘营养枝叶片N和果肉K含量。施用石灰降低了土壤有效Fe、Mn、Zn含量，降幅分别为53．61％、54．83％、51．06％；并使柑橘营养枝叶片Fe、Zn含量和果皮、果肉Mn含量下降。施用石灰还降低柑橘果实酸度，提高果实固酸比。
The 16-year-old satsuma mandarin （Citrus unshiu Marc. ） planted on an acid yellow brown soil of Yiling district in Yichang city was used as experimental materials, effects of liming on improving soil acidification,plant nutrient absorption and fruit quality of satsuma mandarin were studied. The results showed that application of 1.5 kg/tree lime could increase soil pH in 0-20 cm,20-40 cm and 40-60 cm soil layer by 0. 87 units,0. 99 units,0. 47 units,respectively. Liming could significantly increase soil available N,P,Ca,Mg contents by 30. 82%,71.13%,64.06~,14.27% in 0-20 cm soil layer and im prove the foliar N contents and pulp K contents. Soil available Fe, Mn, Zn contents decreased by 53.61 ~/00,54. 83 ~, 51.06 % in 0-20 cm soil layer, leading to the decline of {oliar total Fe, Zn contents and peel, pulp Mn contents. Moreover, liming could reduce fruit acidity, improve fruit quality. Therefore, ra tional application of lime could increase soil pH, soil available N, P, Ca and Mg contents, alleviate Mn toxicity,and then improve citrus plant nutrition and increase fruit quality of satsuma mandarin in a viscous yellow brown soil with serious acidification.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2014年第4期72-76,共5页
Journal of Huazhong Agricultural University
基金
现代柑橘产业技术体系(CARS-027)营养诊断与施肥岗位
关键词
酸性黄棕壤
石灰
土壤养分
温州蜜柑
果实品质
acid yellow brown soil
lime
soil nutrient
satsuma mandarin
fruit quality
