Study On Optimum Model of Fertilizing for spring wheat in Loess Hil l y Areas of South Ningxia

LI Dingxin; DANG Zengchun; XU Xuexuan

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Study On Optimum Model of Fertilizing for spring wheat in Loess Hil l y Areas of South Ningxia

- Study On Optimum Model of Fertilizing for spring wheat in Loess Hil l y Areas of South Ningxia
- Bulletin of Soiland Water Conservation Vol. 14, Issue 5, Pages: 29-34(1995)
- 作者机构：
  
  中国科学院水利部水土保持研究所,陕西杨陵,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：1995
- 稿件说明：
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LI Dingxin, DANG Zengchun, XU Xuexuan. Study On Optimum Model of Fertilizing for spring wheat in Loess Hil l y Areas of South Ningxia[J]. Bulletin of Soiland Water Conservation, 1995, 14(5): 29-34.
DOI：

LI Dingxin, DANG Zengchun, XU Xuexuan. Study On Optimum Model of Fertilizing for spring wheat in Loess Hil l y Areas of South Ningxia[J]. Bulletin of Soiland Water Conservation, 1995, 14(5): 29-34. DOI：

摘要

宁南固原河川乡上黄试区

采用三因素五水平通用旋转设计

对影响春小麦产量的N

和M(有机肥)进行了试验研究?建立了两种农田系统春小麦丰产施肥的主效应方程?根据试验结果

利用微机田间模拟寻优得出了:两种农田系统春小麦每1hm

产量3000kg和2400kg丰产组合方案.根据这两种模式和所得到的102个和88个不同因子配合下的不同产量水平

因地制宜地制定春播方案

指导生产

预测产量?

Abstract

The field trials were conducted in south Ningxia province by using regression design of gerneral rotation. By means of establishing mathematical model，the relationship among N

P2o5，M and yield was analysised. In addition

a system of optimum model of fertilizing N

and M were obtained，with which the output would be above 3 OOOkg/ha in terrace and 2400kg/ha in tableland. Also，the limited line of fertilizer input were given:N 100.5kg/ha

P2o5105.0kg/ha

M 30 000kg/ha in terraces and N 110. 0kg/ha

P2o5

105. 0kg/ha，M 30 000kg/ha in tableland. Those results could be used in practice to improve yield

save fertilizer and to fore-cast yield.

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