摘要
为了探讨夏玉米高产高效施肥技术。以‘郑单958’为试验材料,研究了3种不同施肥方式对夏玉米产量、单株叶面积、单株叶片数、株高、叶面积系数及穗部性状等方面的影响。结果表明,处理1(种肥施用量占10%+大喇叭口期施攻穗肥占60%+抽雄吐丝期施攻粒肥占30%的施肥方法)能明显提高单株叶面积和叶面积系数、增加玉米绿叶叶片数、株高,促进单株籽粒中的干物质积累,提高千粒重,从而使玉米产量增长,比处理2(种肥施用量占10%+大喇叭口期施肥量占90%的施肥方法)增产1155.66kg/hm2,增产率11.65%,比处理3(大喇叭口期全部N肥100%一次施入的施肥方法)增产1770.84kg/hm2,增产率19.03%;处理2比处理3增产615.18kg/hm2,增产率6.61%。为了获得夏玉米高产和提高常规氮肥增产效果,采取分期追施,增产显著且高效。
The aim of this experiment is to study the technology with applying high quality and fertilizer on summer maize.The study was used ' Zhengdan 958 ' as the experimental material.On the basis of this typical plant,it had shown several influences,such as yield of summer maize,single plant leaf area,single plant leaves number,plant height,leaf area index and ear traits that was affected by these three kinds of methodologies on different fertilizers.The results revealed that the processing No.1(the seeding fertilization 10% + the ears fertilization 60% + the grain fertilization 30%).It had improved the treatment on the leaf area of plants,leaf area index,plant height,and green leaves number of corn plant significantly.Then,it also increased the number of corn green leaves.Moreover,the individual grains of dry matter accumulation and grain weight had been promoted as meanwhile.Therefore,the production of maize had increased finally.Compared with the processing No.2(the seeding fertilization 10% + the ears fertilization 90%),results had achieved on increasing yield at 1155.66 kg/hm 2 and the increasing rate of 11.65%.At the same time,the comparison with the processing No.3(the all total fertilization 100% with ears fertilization) results could be reached at the level of increasing yield at 1770.84 kg/hm 2,and increasing yield rate of 19.03% respectively.While,from the comparison between Processing No.2 and No.3,we might find that the result of former sample had got the increasing production at 615.18 kg/hm 2 and increasing rate of 6.61%.In order to obtain the effect on the high-yield of summer maize and promoting the effect of normal nitrogenous fertilizer,this study was adopted the method of three times fertilization.Consequently,it had shown that the increasing production of summer maize with high-efficiency obviously.
出处
《中国农学通报》
CSCD
北大核心
2011年第9期305-308,共4页
Chinese Agricultural Science Bulletin
基金
国家粮食丰产工程"华北平原小麦玉米两熟农田生态健康调控技术集成示范"专题中的部分研究(2006BAD02A15)
关键词
夏玉米
施肥方式
产量
单株叶面积
叶面积系数
summer maize
fertilizing methods
yield
single plant leaves area
leaves area coefficient