豫东平原超高产夏玉米测土配方施肥技术参数研究  

Parameter Determination to Formula Fertilization by Soil Testing for Super High-Yield Maize:A Case Study in Yudong Plain,Henan Province

作　　者：王红军[1] 张静[1] 皇甫自起[1] 张慎举[1] 田伟[1] 纪磊 赵永梅 

机构地区：[1]商丘职业技术学院,河南商丘476005 [2]河南省三河种业有限公司,河南宁陵476742

出　　处：《土壤与作物》2017年第1期55-60,共6页Soils and Crops

基　　金：河南省重点科技攻关计划项目"豫东平原区小麦玉米两熟农艺农机配套技术研究与应用"(142102110024);河南省高等学校重点科研项目"小麦玉米超高产栽培技术研究与应用"(16A210038);商丘市科技发展计划项目"小麦玉米连作亩产1500公斤栽培技术研究与示范"(20125002)

摘　　要：为了向豫东平原潮土生态类型区夏玉米超高产栽培提供测土配方施肥技术参数,进行了5个不同氮磷钾肥配施处理田间试验。试验结果表明,夏玉米在12 835.5 kg·hm^(-2)~14 310.0 kg·hm^(-2)的生产水平下,每形成100 kg籽粒产量分别需要吸收氮(N)2.81 kg、磷(P_2O_5)1.25 kg和钾(K_2O)3.10 kg;氮肥、磷肥和钾肥的利用率分别为35%、25%和31%;单位剂量养分夏玉米籽粒增产量(kg·kg^(-1))分别为:氮肥9.7、磷肥16.5、钾肥11.9、氮磷钾肥7.7;土壤有效养分校正系数分别为:氮素1.287 7、磷素1.409 6和钾素0.985 2;无肥区土壤供肥量(kg·hm^(-2))分别为:氮(N)225、磷(P_2O_5)105和钾(K_2O)252;土壤贡献率为64.4%,肥料贡献率为35.6%。In order to provide technical parameters for formula fertilization by soil testing for super high - yield maize in alluvial soil re- gion of Yudong plain, we conducted a field experiment with five fertilization combinations of nitrogen （ N）, phosphorus （ P2 05 ） and potassium （K2O） . The results showed that summer maize with a production level of 12 835.5 kg. hm-2 14 310. 0 kg hm-2, its grain formation of 100 kg required to absorb 2. 81 kg of N, 1.25 kg of P2O5 and 3.10 kg of K20, respectively. N, P2O5 and K2O use efficiency were 35.0%, 25.4% and 31.4%, respectively; The grain increase per unit fertilizer （kg.kg-1 ） was N 9. 7, P2O5 16. 5, K2O 11. 9 and NPK7. 7, respectively. The soil available nutrients correction coefficients were N 1. 287 7, P2O5 1. 409 6, and K2O 0. 985 2, respectively; The soil nutrient supplying （kg. hm-2） of no fertilizer treatment was N 225, P2O5 105, and K2O 252, re- spectively. Therefore, the fertilization contribution rates were 64. 4% from soil nutrients and 35.6% from fertilizer nutrients, respectively.

关 键 词：豫东平原 夏玉米 超高产 平衡施肥 技术参数 

分 类 号：S513[农业科学—作物学] S147