摘要
以贺兰山东麓3年生酿酒葡萄"赤霞珠"为试材,通过小区试验设置6个氮肥施用量梯度,即纯氮施用量0、120、240、360、480、600kg·hm^(-2),研究了氮肥施用量对酿酒葡萄初果期生长以及产量品质的影响。结果表明:氮肥能显著促进株高、新梢、副梢发生数的增加,纯氮施用量480kg·hm-2时酿酒葡萄叶片SPAD值为43.11,并且水分有效利用率达到最高,为3.14μmol·mmol^(-1)。肥效方程得出最高产量纯氮施用量为398.75kg·hm^(-2),纯氮施用量超过480kg·hm-2后产量增幅和葡萄果实糖酸比同比下降。纯氮施用量360kg·hm^(-2)能显著提高可溶性糖、总酚、花色苷含量,改善品质。
Taking three-year-old wine grape‘Cabernet Sauvignon＇as test material at the eastern foot of Helan Mountain,farmer tradition was used to set six gradient nitrogen fertilizers of namely pure nitrogen application amount 0 kg·hm^-2,120 kg·hm^-2,240kg·hm^-2,360kg·hm^-2,480kg·hm^-2 and 600kg·hm^-2 to research the effects of nitrogen fertilizer application on the beginning growth and yield,quality of wine grape.The results showed that nitrogen fertilizer could significantly promote the occurrence of plant height,shoots length,axillary shoots number,nitrogen application amount was 480kg·hm^-2 made SPAD value for 43.11,and 3.14-1 μmol·mmolstand for enhancing the utilization of water effectively.It was concluded that the nitrogen application amount for maximum yield was 398.75 kg·hm^-2 by the simulation equations,when nitrogen application amount exceed 480kg·hm^-2 showed the growth decline,at the same time reducing sugar acid ratio.Nitrogen application amount 360kg·hm^-2 significantly improved the anthocyanins,soluble sugar,total phenols,and improved the quality of wine grape.
出处
《北方园艺》
CAS
北大核心
2016年第21期32-36,共5页
Northern Horticulture
基金
国家自然科学基金资助项目(31160417
31460552)
"十二五"国家科技支撑计划资助项目(2013BAD09B02)
现代农业产业技术体系建设专项资金资助项目(nycytx-30)
关键词
贺兰山东麓
酿酒葡萄
纯氮
产量
eastern foot of Helan Mountain
wine grape
pure nitrogen fertilizer
production
