湖北农业科学
湖北農業科學
호북농업과학
2010年
1期
52-55
,共4页
李银水%鲁剑巍%李小坤%鲁明星%徐维明%李彬%张耀学%刘光文
李銀水%魯劍巍%李小坤%魯明星%徐維明%李彬%張耀學%劉光文
리은수%로검외%리소곤%로명성%서유명%리빈%장요학%류광문
棉花%氮肥%产量%经济效益%氮肥最佳用量
棉花%氮肥%產量%經濟效益%氮肥最佳用量
면화%담비%산량%경제효익%담비최가용량
cotton%nitrogen fertilizer%seed-cotton yield%profit%optimum N recommended rate
通过17个大田试验,研究了湖北省棉花氮肥施用效果及氮肥最佳用量.结果表明,适量施用氮肥棉花增产增收效果显著,施氮比对照子棉增产131~1244 kg/hm~2,平均增产752 kg/hm~2,平均增产率为31.1%.施氮纯利润平均为3 422元/hm~2,产投比平均为4.07.氮肥偏生产力和农学利用率平均分别为13.20 kg/kg(N)和2.90 kg/kg(N).根据线性加平台模型,求得湖北省棉花氮肥最佳用量平均为纯N114.0 kg/hm~2.
通過17箇大田試驗,研究瞭湖北省棉花氮肥施用效果及氮肥最佳用量.結果錶明,適量施用氮肥棉花增產增收效果顯著,施氮比對照子棉增產131~1244 kg/hm~2,平均增產752 kg/hm~2,平均增產率為31.1%.施氮純利潤平均為3 422元/hm~2,產投比平均為4.07.氮肥偏生產力和農學利用率平均分彆為13.20 kg/kg(N)和2.90 kg/kg(N).根據線性加平檯模型,求得湖北省棉花氮肥最佳用量平均為純N114.0 kg/hm~2.
통과17개대전시험,연구료호북성면화담비시용효과급담비최가용량.결과표명,괄량시용담비면화증산증수효과현저,시담비대조자면증산131~1244 kg/hm~2,평균증산752 kg/hm~2,평균증산솔위31.1%.시담순리윤평균위3 422원/hm~2,산투비평균위4.07.담비편생산력화농학이용솔평균분별위13.20 kg/kg(N)화2.90 kg/kg(N).근거선성가평태모형,구득호북성면화담비최가용량평균위순N114.0 kg/hm~2.
A study was undertaken to evaluate the effect of nitrogen (N)fertilization on yield,economic benefit,N use efficiency and optimum N recommendation rate of cotton through field trials at 17 sites in Hubei province.The results showed that the yield and profit of cotton significantly increased when N supplied adequately.Compared with the treatment without N fertilizer,the increment of seed-cotton ranged from 131 kg/hm~2 to 1 244 kg/hm~2,the average increment was 752 kg/hm~2 and increased by 31.1 percent compared with the control.The average net profit of the N application was 3 422 Yuan/hm~2 and the value cost ratio (VCR)was 4.07.The average partial factor productivity of applied N (PFPN)and agronomic N use efficiency(ANUE)were 13.20 kg/kg(N)and 2.90 kg/kg(N),respectively.According to linear plus platform model,the average optimum N application rate was 114.0 kg(N)/hm~2 in Hubei province.