DIFFUSION, ADSORPTION, AND PREDICTED LONGEVITY OF BANDED PHOSPHORUS-FERTILIZER IN 3 SOILS

被引：57

作者：

EGHBALL, B ^{[1
]}

SANDER, DH ^{[1
]}

SKOPP, J ^{[1
]}

机构：

[1] UNIV NEBRASKA,DEPT AGRON,LINCOLN,NE 68588

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1990年 / 54卷 / 04期

关键词：

D O I：

10.2136/sssaj1990.03615995005400040041x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

An experiment was conducted to determine the extent of P diffusion from banded P application, diffusion coefficients, and the longevity of banded P fertilizer. Six P rates of 15, 22.5, 30, 37.5, 45, and 60 kg P ha-1 tagged with 32P were applied in a band in three soils and allowed to diffuse under field conditions for 94 d. The diffusion distances and apparent diffusion coefficients increased in a linear manner as the P application rate increased. Soil sampling and soil-test P calibration should be altered to account for the residual nature of applied P bands. -from Authors

引用

页码：1161 / 1165

页数：5

共 14 条

[1]

Barber S. A., 1984, SOIL NUTRIENT BIOAVA

[2] MECHANISMS FOR MOVEMENT OF PLANT NUTRIENTS FROM SOIL AND FERTILIZER TO PLANT ROOT [J].