湖北省棉花磷肥效应研究  

Study on Effect of Phosphorus Fertilizer of Cotton in Hubei Province

作　　者：李银水[1,2] 鲁剑巍[1] 李小坤[1] 鲁明星 刘光文 张耀学 徐维明 李彬 

机构地区：[1]华中农业大学资源与环境学院,武汉430070 [2]中国农业科学院油料作物研究所,武汉430062 [3]湖北省土壤肥料工作站,武汉430070 [4]湖北省武穴市土壤肥料工作站,湖北武穴436300 [5]湖北省黄梅县土壤肥料工作站,湖北黄梅436500 [6]湖北省沙洋县土壤肥料工作站,湖北沙洋448200 [7]湖北省荆州区土壤肥料工作站,湖北荆州434000

出　　处：《湖北农业科学》2010年第2期310-313,337,共5页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划重点项目(2008BADA4B08);教育部"新世纪优秀人才支持计划"项目(NECT-07-0345);国家测土配方施肥项目

摘　　要：通过17个大田试验,研究了湖北省棉花磷肥施用效果及磷肥最佳用量。结果表明,适量施用磷肥棉花增产增收效果显著,施磷比对照增加产量83～746kg/hm2,平均增加327kg/hm2,平均增产率为11.6%;施磷纯利润平均为1695元/hm2,产投比平均为7.54;磷肥偏生产力和农学利用率平均分别为48.52kg/kg(P2O5)和4.73kg/kg(P2O5)。根据线性加平台模型确定,湖北省棉花磷肥最佳用量平均为P2O534.4kg/hm2。A study was carried out in Hubei province to evaluate the effect of phosphorus （P） fertilization rate on yield, economic benefit, P use efficiency and optimum P recommendation rate of cotton through field trails at 17 sites in Hubei province. The results showed that the yield and profit of cotton significantly increased when P supplied adequately. Compared with the treatment without P fertilizer, the increment of seed-cotton ranged from 83 to 746 kg/hm2, the average increment was 327 kg/hm＆2 and increased by 11.6 percent compared with the control. The average net profit of the P application was 1 695 Yuan/hm^2 and the value cost ratio （VCR） was 7.54. The average partial factor productivity of applied P （PFPP） and agronomic P use efficiency （APUE） were 48.52 kg/kg （P2O5） and 4.73 kg/kg （P2O5）, respectively. According to linear plus platform model, the average optimum P application rate was 34.4 kg（P2O5）/hm2 in Hubei province.

关 键 词：棉花 磷肥 产量 经济效益 磷肥适宜用量 

分 类 号：S562.062[农业科学—作物学]