CAJ | 학술논문

以小麦为材料,在拔节中期低温过后采用不同营养型调节剂叶面喷施或追肥等处理,研究晚春低温冻害对小麦产量及其结构的影响,为冻害恢复技术措施提供理论依据.结果表明叶面喷施KH2PO4、尿素、481等调节剂和追施尿素可以缓解冻害对小麦的影响,有显著的增产效果.喷KH2PO4增产6.0%;喷尿素水增产4.4%;喷481或其他营养型调节剂增产4.9%,追尿素增产4.6%.处理可以提高穗粒数3.6%～5.7%,提高千粒重1.8%～3.9%,降低不孕小穗数19.5%～27.7%.
이소맥위재료,재발절중기저온과후채용불동영양형조절제협면분시혹추비등처리,연구만춘저온동해대소맥산량급기결구적영향,위동해회복기술조시제공이론의거.결과표명협면분시KH2PO4、뇨소、481등조절제화추시뇨소가이완해동해대소맥적영향,유현저적증산효과.분KH2PO4증산6.0%;분뇨소수증산4.4%;분481혹기타영양형조절제증산4.9%,추뇨소증산4.6%.처리가이제고수립수3.6%～5.7%,제고천립중1.8%～3.9%,강저불잉소수수19.5%～27.7%.
This study addresses the influence of late spring freezing injury on wheat yield and its structure and is expected to provide the theoretic basis of recovery techniques for freezing injury.The methods of foliage spray or topdressing with regulators of various nutrition types were adopted in the middle jointing stage after low temperature.The results show that foliage spray with regulators such as KH_2PO_4,Urea,481 and Urea topdressing can relieve the influence of freezing injury on wheat and significantly increase the yield.Foliage spray of KH_2PO_4,Urea,and 481 or other types of nutrition regulators will result in a yield increase by 6.0%,4.4%,and 4.9% respectively.Urea topdressing can increase yield by 4.6%.Treatments can help increase grains per spike by 3.6%～5.7%,1000-grain weight by 1.8%～3.9%,and decrease sterility spike number by 19.5%～27.7%.