CAJ | 학술논문

为确立强筋小麦高产优质高效栽培的群体调控和氮肥管理策略,以强筋冬小麦品种连麦2号为材料,研究了播期、密度及施氮水平和基追比对小麦籽粒产量和品质的影响.结果表明,播期和密度对籽粒产量均有显著的影响,并且播期效应大于密度效应.3个播期中,适播(10月10日)处理产量显著高于早播(9月30日)和晚播(10月25日);密度间差异达显著水平,以中密度(180万～270万·hm~(-2))产量最高,低密度和高密度(90万、360万·hm~(-2))最低.小麦籽粒产量与施氮量呈二次曲线关系,籽粒蛋白质含量随密度的增加而降低,随播期的推迟而增加.增加施氮量和后期追氮比例提高了冬小麦蛋白质含量及湿面筋含量、沉淀值,但降低了总淀粉含量.综合分析,在本试验条件下,冬小麦连麦2号在10月10日播种、密度180万·hm~(-2)、施氮量为299～355 kg·hm~(-2)、基追比为6:4时可实现优质与高产的协调.
위학립강근소맥고산우질고효재배적군체조공화담비관리책략,이강근동소맥품충련맥2호위재료,연구료파기、밀도급시담수평화기추비대소맥자립산량화품질적영향.결과표명,파기화밀도대자립산량균유현저적영향,병차파기효응대우밀도효응.3개파기중,괄파(10월10일)처리산량현저고우조파(9월30일)화만파(10월25일);밀도간차이체현저수평,이중밀도(180만～270만·hm~(-2))산량최고,저밀도화고밀도(90만、360만·hm~(-2))최저.소맥자립산량여시담량정이차곡선관계,자립단백질함량수밀도적증가이강저,수파기적추지이증가.증가시담량화후기추담비례제고료동소맥단백질함량급습면근함량、침정치,단강저료총정분함량.종합분석,재본시험조건하,동소맥련맥2호재10월10일파충、밀도180만·hm~(-2)、시담량위299～355 kg·hm~(-2)、기추비위6:4시가실현우질여고산적협조.
In order to establish regulation strategies on population control and nitrogen management for high yield and superior quality cultivation of wheat, a strong gluten wheat, Lianmai 2 was used to study the effects of sowing date, planting density and nitrogen management on grain yield and quality. The results showed that sowing date and density significantly affected grain yield and its components, and the effects of sowing date was greater than that of plant density. Among the 3 sowing dates of September 30, October 10 and October 25, grain yield of October 10 sowing date was obviously higher than those of early and late sowing date treatments. On average, the plant density of 180×10~4 plants·hm~(-2)treatment had the highest yield under early and suitable sowing dates and that was 270×10~4 plants·hm~(-2) treatment for late date. Wheat grain yield showed a quadratic relationship with nitrogen application rate and the suitable declined with the increased density and enhanced with the delay of sowing date. Increased nitrogen rate and dressing ratio during late growth period were benefical to increase grain protein and wet gluten content and sedimentation value, but to reduce total starch content. Integrated analysis on grain yield and quality showed the appropriate management combination for high yield and superior quality cultivation of Lianmai 2 was sowing date of October 10, planting density of 180×10~4 plants·hm~(-2), nitrogen rate of 299 ～ 355 kg·hm~(-2) and