摘要
[目的]研究不同施肥模式下玉米-土壤系统磷锌的动态变化规律,为制定合理的玉米高产施肥模式提供理论依据。[方法]采用田间试验法,研究不同施肥模式下玉米干物质积累、产量及磷锌的动态变化规律。[结果]随着生育期的延长,各处理玉米干物质和磷锌积累量均呈＂S＂型变化;不同施肥模式中,各生育时期高产田的土壤速效磷较常规田和低产田分别提高6.2%~15.2%和41.6%~87.0%;成熟期植株干物重分别提高8.3%和25.4%,植株磷累积量分别增加14.6%和43.5%,植株锌累积量分别增加40.2%和74.0%。[结论]高产田中有机无机肥合理配施,玉米增产效果显著,产量达12 286.7 kg/hm2。
[Objective]The aim was to study the dynamic variations of P and Zn in soil and maize system under different fertilization patterns to provide the theory basis for formulating reasonable and high-yield fertilization patterns for maize.[Method] Field experiment method was used to study the dynamic variations of maize dry matter accumulation,yield,P and Zn.[Result] With the extension of growth period,the variation of dry matter,P and Zn accumulation presented a ＂S＂ curve.In different fertilization patterns,comparing with medium-and low-yielding farmland,soil available P content in high-yielding farmland increased by 6.2%-15.2% and 41.6%-87.0% during every growth stage,and the dry matter weight of plants increased by 8.3% and 25.4% at the mature stage,P accumulation of plants increased by 14.6% and 43.5%,Zn accumulation of plants increased by 40.2% and 74.0%,respectively.[Conclusion] Inorganic fertilizer was combined with organic manure in a right way in high-yielding farmland,which can significantly improved the maize yield and the yield achieved 12 286.7 kg/hm2.
出处
《安徽农业科学》
CAS
北大核心
2011年第4期2152-2154,共3页
Journal of Anhui Agricultural Sciences
基金
国家粮食丰产科技工程河北省课题(2006BAD02A08)
关键词
施肥模式
玉米
土壤
磷
锌
Fertilization pattern
Maize
Soil
P
Zn
