摘要
为了给强筋小麦品种济麦20优质高产配套栽培提供理论依据及技术支撑,在大田高产栽培条件下,研究了氮钾肥施用量及其配比对强筋小麦品种济麦20产量和品质的影响。结果表明,氮和钾及其互作对小麦籽粒产量及其构成因素的影响均达到显著或极显著水平,以施氮225kg/hm2、K2O150kg/hm2的处理产量最高。随着氮和钾肥的增加出粉率和容重均呈先增加后降低的变化趋势,籽粒蛋白质含量和湿面筋含量、沉降值均随施氮量增加而增加,籽粒蛋白质含量和湿面筋含量在施K2O0～150kg/hm2范围内随施钾量的增加而增多,到K2O210kg/hm2的处理反而降低,而沉降值随着钾肥的增加而降低。氮钾配比对籽粒蛋白质含量的影响未达到显著水平,但对湿面筋含量、沉降值的影响达到显著水平。氮肥能提高小麦面团的弹性,钾肥则提高了面团的延伸性,氮钾配比极显著提高了拉伸面积。
In order to provide theoretical basis and technological for high-quality and high-yield cultivation of a strong gluten wheat variety ＂Jimai 20＂, the experiment studied effects of the radio of nitrogenous fertilizer and potassic fertilizer on yield and quality of Jimai 20 under the field conditions with High-yield cultivation. The results showed that the effects of nitrogen and potassium and their interaction on wheat grain yield and its component factors had reached significant level or very significant level, and the handling of N 225 kg/hm^2, IGO 150 kg/hm^2 had the highest yield. With the increasing application of nitrogen and potassium, flour yield and bulk density showed the trend of first increase then decrease, grain protein content and wet gluten content, the sedimentation value increased with the nitrogen. In the range of application K20 0 to 150 kg/hm^2, Grain protein content and wet gluten content increased with the potassium, when reached to 210 kg/hm^2 they decreased, and sedimentation value decreased with the potassium. The combined application of N and K haven＇ t significant effects on grain protein content, but the effects have achieved significant levels on wet gluten content and sedimentation value. Nitrogen fertilizer can increase the elasticof wheat dough, potassium fertilizer can improve the doughy extensibility,and the combined application of N and K can significantly increase the extension area.
出处
《中国农学通报》
CSCD
北大核心
2009年第10期156-160,共5页
Chinese Agricultural Science Bulletin
基金
青岛市公共领域科技支撑计划"小麦-玉米周年生物节水栽培技术研究与应用"(08-2-1-22-nsh)
国家重点基础研究发展计划"小麦-玉米周年高产高效的栽培学机制与途径"(2009CB118602)
中国博士后科学基金"旱地小麦新品种节水高产的生理生态机制的研究"(20080430567)
关键词
小麦
氮钾配施
产量
品质
wheat, nitrogen application combined with potassium, yield, quality
作者简介
赵长星，男，1976年出生，山东曹县人，博士，副教授，主要从事作物生理生态研究。通信地址：266109山东省青岛市城阳区长城路700号，青岛农业大学农学与植物保护学院，Tel：053288030341。E-mail：cxzhao@qau．edu．cn。
通讯作者：王月福，男，1963年出生，山东莱阳人，博士，教授，主要从事作物栽培生理研究。E-mail：wangyuefu01@163．com。
