中国水稻科学Issue(4)：399-407,9.DOI:10.3969/j.issn.1001-7216.2015.04.009
不同氮磷钾处理对中浙优1号水稻产量、品质、养分吸收利用及经济效益的影响
Effects of Different Nitrogen,Phosphorus and Potassium Treatments on Rice Yield, Quality, Nutrient Absorption-Utilization and Economic Benefit of Zhongzheyou 1 in Central Zhejiang Province,China
摘要
Abstract
A field experiment was conducted from 2008 to 2010 to reveal the effects of different nitrogen (N), phosphorus (P)and potassium (K)treatments on rice yield,quality,nutrient absorption-utilization and economic benefit by using the “3414 ”fertilizer experiment design.Results showed that N,P and K fertilization significantly increased rice grain yield,and the effect of combined application of those three fertilizers on grain yield was better than the combination of any of two fertilizers;the yield-increasing effect followed the order of N>K>P.The highest yield was obtained in N3 P2 K2 treatment,being 8746 kg/hm2 .N fertilization improved gel consistency (GC),protein content (PC)and total amino acid content,meanwhile reduced alkali spreading value (ASV);P fertilization improved PC;K fertilization improved GC,ASV and PC.The rice total nutrient (N,P2 O 5 ,K2 O)accumulation and nutrient absorption rates per 100 kg seeds increased with increasing fertilizer application rates,while the nutrient absorption and utilization efficiency and agronomic efficiency decreased with the increase of applied fertilizer rates.The absorption and utilization efficiency for N,P and K were 25 .2%,38.3% and 36.0%,respectively.The economic benefits were increased by 21 . 1 %,20.3%,20.3% and 22.4% for N2 P2 K2 ,N2 P3 K2 ,N2 P2 K1 and N3 P2 K2 treatments,respectively,compared with N0 P0 K0 treatment.According to the fertilizer effect equations,the N,P(P2 O 5 )and K(K2 O)application rates for the highest grain yield were 258.8 kg/hm2 ,39.3 kg/hm2 and 100.8 kg/hm2 ,respectively.关键词
水稻/“3414”试验/产量/品质/养分吸收利用/经济效益Key words
rice (Oryza sativa L.)/“3414 ”experiment/yield/quality/nutrient absorption-utilization/economic benefit分类
农业科技引用本文复制引用
董作珍,吴良欢,柴婕,陈远利,朱跃忠..不同氮磷钾处理对中浙优1号水稻产量、品质、养分吸收利用及经济效益的影响[J].中国水稻科学,2015,(4):399-407,9.基金项目
公益性行业(农业)科研专项(201003016) （农业）
国家科技支撑计划资助项目(2008BADA4B03-2) （2008BADA4B03-2）
国家自然科学基金资助项目(31172032) （31172032）
浙江省农业综合开发土地治理科技推广项目 （）
