干旱地区农业研究2016，Vol.34Issue(4)：165-169,258,6.DOI:10.7606/j.issn.1000-7601.2016.04.25
氮肥与水分互作对黑龙江半干旱区玉米氮积累和产量的影响
Effect of interaction between nitrogen and water on maize nitrogen accumulation and yield in semi-arid region of Heilongjiang Province
摘要
Abstract
The method of experimental design on water and nitrogen ,two factors and four levels was adopted ,to in-vestigated the different combinations of water and nitrogen on nitrogen accumulation and yield of plastic mulching maize in semi-arid region of Heilongjiang Province .The results showed that the nitrogen accumulations in maize leaves ,stalks and grains and the yield with W1N3 treatment (384 .62 m3·hm-2 of irrigation amount ;180 kg·hm-2 of nitrogen) were the highest during the filling and mature stage .However ,with the increase of irrigation water ,the nitrogen accumulations in maize leaves ,stalks and grains and the yield of maize showed a decreasing trend .The changes of various indexes on maize during the filling and mature stages implied that W1N3 treatment was the best ,and that the yield of maize by W1N3 treatment reached up to 17 633 .46 kg·hm-2 .In addition ,W1N1 (384 .62 m3·hm-2 of irrigation amount ;120 kg·hm-2 of nitrogen) treatment ,by which the yield of maize was 17 498 .82 kg·hm-2 ,had the best economic benefit and was the best combination of water and nitrogen for water saving and fertilizer conservation in the semi-arid region .关键词
玉米/半干旱区/水氮互作/氮积累/产量Key words
maize/semi-arid region/interaction between water and nitrogen/accumulation of nitrogen/yield分类
农业科技引用本文复制引用
张兴梅,周攒义,殷奎德,孙跃春,李佐同..氮肥与水分互作对黑龙江半干旱区玉米氮积累和产量的影响[J].干旱地区农业研究,2016,34(4):165-169,258,6.基金项目
国家科技支撑计划 （）
