INFLUENCE OF POTASSIUM SUPPLY ON GROWTH AND NUTRIENT STORAGE BY WATER HYACINTH

被引：15

作者：

REDDY, KR

AGAMI, M

DANGELO, EM

TUCKER, JC

机构：

[1] Department of Soil Science, University of Florida, Institute of Food and Agricultural Sciences, Gainesville

来源：

BIORESOURCE TECHNOLOGY | 1991年 / 37卷 / 01期

关键词：

AQUATIC PLANT; BIOMASS PRODUCTION; NUTRIENT UPTAKE; WASTE-WATER TREATMENT;

D O I：

10.1016/0960-8524(91)90114-Y

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The net productivity and nutrient storage of potassium (K), nitrogen (N), and phosphorus (P) by water hyacinth (Eichhornia crassipes [Mart.] Solms) were evaluated at several K concentrations in the culture medium (between 2 and 52 mg K liter-1) using 1000-liter outdoor tanks for a period of about 4 months. Maximum plant biomass (3.1 kg (dw) m-2) was reached at culture medium K concentrations of 12-52 mg K liter-1. Potassium storage in water hyacinth tissue steadily increased at K supplies of up to 52 mg K liter-1 with a maximum tissue K content of 72 mg K g-1. Maximum N and P storage in the plant biomass was reached at K concentrations of 12 and 22 mg K liter-1, respectively; further increases in K concentration did not increase either N or P storage.

引用

页码：79 / 84

页数：6

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