摘要
为红毛丹平衡施肥提供参考依据,以海南省当前主栽红毛丹品种保研7号为研究对象,采用田间大区对比试验研究滴灌增施镁肥和常规施肥(不施镁,CK)对红毛丹产质量及经济效益的影响。结果表明:滴灌施镁红毛丹保研7号的产量为9 736.7kg/hm^2,较CK增产10.1%;与对照相比:红毛丹叶片中的Mg和N含量显著提高,果实营养品质得到改善;可溶性固形物含量增加2.1%,Vc提高5.0%,固酸比提高16.1%,可滴定酸降低0.016%;纯收益增加13 994元/hm^2,提高19.6%;VCR为47。滴灌施镁可提高红毛丹产质量及经济效益,生产上建议:MgSO_4·7H_2O追肥用量为100kg/hm^2,在花芽分化期分2次滴施。
Baoyan 7,a major Nephelium lappaceum variety,was tested by a field contrast test between dripping Magnesium fertilizer and conventional fertilizer（non Magnesium application）to evaluate the effects on yield,quality and economic benefit of N.lappaceumand to provide the reference basis for balanced fertilization of N.lappaceum.Result：The yield of Baoyan 7 under dripping Mg fertilizer is9 736.7 kg/hm^2,10.1% higher than CK and the leaf Mg and N content and fruit nutritional quality are significantly increased and improved compared with CK.The soluble solids content,Vccontent,soluble solids to titratable acid ratio and net income are increased by 2.1%,5.0%,16.1% and 19.6% respectively but its titratable acid is decreased by 0.016% compared with CK.The VCR value is 47.In conclusion,dripping Mg can improve yield,quality and economic benefit of N.lappaceum.Total 100 kg/hm^2 MgSO4·7 H2O are twice dripped during flower bud differentiation stage.
作者
臧小平
井涛
葛宇
王甲水
丁哲利
林兴娥
周兆禧
马伏宁
马蔚红
ZANG Xiaoping;JING Tao;GE Yu;WANG Jiashui;DING Zheli;LIN Xing＇e;ZHOU Zhaoxi;MA Funing;MA Weihong(Haikou Experimental Station,Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 570102,Clzina)
出处
《贵州农业科学》
CAS
2018年第6期24-27,共4页
Guizhou Agricultural Sciences
基金
2016-2018年农业部农业标准化实施示范(海峡两岸农业合作)项目"台湾热带优稀水果新品种及高效生产技术的引进与示范推广"
2017-2018年农业部热作技术试验示范项目"热带优稀果树高效生产技术试验示范"(151721301064072723)
中国热带农业科学院基本业务费专项"热带优稀果树品种选育与推广应用"(1630095016003)
关键词
镁肥
红毛丹
产量
果实品质
推荐施肥
Magnesium fertilizer
NepheZium lappaceum
yield
fruit quality
recommended fertilization
