SIMULATION OF THE NITROGEN-BALANCE IN THE SOIL AND A WINTER-WHEAT CROP

被引：23

作者：

GROOT, JJR

DEWILLIGEN, P

机构：

[1] Institute for Soil Fertility Research, Haren (Gn.), 9750 RA

来源：

FERTILIZER RESEARCH | 1991年 / 27卷 / 2-3期

关键词：

CROP GROWTH; IMMOBILIZATION; MINERALIZATION; MODELING; NITROGEN UPTAKE;

D O I：

10.1007/BF01051132

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

A simulation model for winter wheat growth, crop nitrogen dynamics and soil nitrogen supply was tested against experimental data. When simulations of dry matter production agreed with measurements, nitrogen uptake was simulated accurately. The total amount of soil mineral nitrogen as well as the distribution of mineral nitrogen over the various soil layers were generally simulated well, except for experiments in which fertilizer was applied late in spring. In these experiments, applied nitrogen 'disappeared' because it could not by accounted for by the model. Some explanations for this disappearance are briefly discussed.

引用

页码：261 / 272

页数：12

共 32 条

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