冬小麦-夏玉米轮作推荐施肥模型

Development of the Integrated Rotation Fertilization Recommendation Model(RIFRM)

本文以1986～1988年度冬小麦、夏玉米3×3多点试验数据分别建立了冬小麦、夏玉米包括土壤测试值(土壤全氮含量、Olsen-P 含量)在内的综合推荐施肥模型。通过1992年～1993年度冬小麦-夏玉米轮作施肥试验对模型进行了校验,以土壤 Olsen-P 含量变化规律将两种作物的综合推荐施肥模型联立起来。形成轮作综合推荐施肥模型。由轮作综合推荐施肥模型推导出冬小麦施用磷肥对夏玉米的后效效益方程,它与轮作试验结果十分吻合。

Based on the data from fertilization experiments for winter wheat and summer-corn in 1986 ～1988,two integrated fertilizer recommendation models(WIFRM)and(IFRM)have been developed.In the models,total nitrogen and Olsen-P of the soils were considered.Based on the data from fertilization experiments for winter-wheat and summer-corn rotation in 1992～1993,the WIFRM and CIFRM ate test- ed,and the model of dynamics of Olsen-P contents in th soils sampled between winter-wheat harvested and summer-corn sowing(APWCM)is developed.Then the integrated rotation fertilization recommenda- tion model(RIFRM)is emerged by putting APWCM,WIFRM and CIFRM together.P residual effect mod- el(PRM)is coincided with the data of fertilization experiments for the rotation.