CAJ | 학술논문

为给小麦优质栽培提供理论依据,以淮麦19和烟农19为材料,在高、中、低三种土壤肥力下研究了施氮量对小麦品质指标的影响.结果表明,在各土壤肥力水平下,小麦籽粒的容重、千粒重和出粉率均随着施氮量的增加呈下降趋势,且均与施氮量存在显著的负相关关系;籽粒蛋白质含量随施氮量增加而显著提高,但蛋白质产量与施氮量在高、中肥力下均呈二次曲线关系,在低肥力下则呈线性关系,蛋白质产量在高肥力条件下最高,在低肥力条件下最低.小麦籽粒淀粉含量及其组分在各肥力水平下均表现为随施氮量增加呈下降趋势,淀粉RVA特征值在中肥力条件下最优,在高肥力条件下最差;小麦面团流变学参数在各肥力下均表现为与施氮量呈正相关关系,并且高肥力的评价值高于中肥力和低肥力的.
위급소맥우질재배제공이론의거,이회맥19화연농19위재료,재고、중、저삼충토양비력하연구료시담량대소맥품질지표적영향.결과표명,재각토양비력수평하,소맥자립적용중、천립중화출분솔균수착시담량적증가정하강추세,차균여시담량존재현저적부상관관계;자립단백질함량수시담량증가이현저제고,단단백질산량여시담량재고、중비력하균정이차곡선관계,재저비력하칙정선성관계,단백질산량재고비력조건하최고,재저비력조건하최저.소맥자립정분함량급기조분재각비력수평하균표현위수시담량증가정하강추세,정분RVA특정치재중비력조건하최우,재고비력조건하최차;소맥면단류변학삼수재각비력하균표현위여시담량정정상관관계,병차고비력적평개치고우중비력화저비력적.
Took Huaimai 19 and Yannong 19 as materials, the effects of nitrogen rates on grain quality of wheat under high, middle, low soil fertility were studied. The results showed that there was significant and negative linear correlation between nitrogen rate and grain test weight, wt.per 1000 kernels, milling yield. Protein content increased significantly with N increased, that there was a quadratic regression equation between nitrogen rate and protein yield under high and middle fertility soil, but there was a linear correlation under low fertility soil. Starch content in wheat and its components decreased with increasing nitrogen application rate in different soil fertility. The RVA profile of wheat flour was best in middle soil fertility, and was worst in high soil fertility. There was linear and positive correlation between nitrogen rate and farimograph index of wheat flour, and the valorimeter value of high soil fertility was higher than that of middle, low soil fertility.