EFFECTS OF SUPERABSORBENT POLYACRYLAMIDES ON EFFICIENCY OF WATER-USE BY CROP SEEDLINGS

被引：42

作者：

JOHNSON, MS

LEAH, RT

机构：

[1] Department of Environmental and Evolutionary Biology, University of Liverpool, Liverpool, L69 3BX

来源：

JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE | 1990年 / 52卷 / 03期

关键词：

crop establishment; Cross‐linked polyacrylamide; evapotranspiration ratio; water storage; water use efficiency;

D O I：

10.1002/jsfa.2740520316

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Cross‐linked polyacrylamide expands upon contact with water to form a pliable gel that in a growing medium constitutes a reservoir of moisture available for uptake by plants. Trials with seedlings of three crop species (Lactuca sativa L, Raphanus sativus L, Triticum aestivum L) using measurements of yield and evapotranspiration ratio show that gel‐stored moisture is utilised with a greater efficiency than conventional forms of water. Moreover, gel storage of water provides a buffer against temporary drought stress and the potential for reducing the risk of failure of certain crops at establishment. Copyright © 1990 John Wiley & Sons, Ltd

引用

页码：431 / 434

页数：4

共 5 条

[1] THE EFFECT OF WATER-ABSORBING SYNTHETIC-POLYMERS ON THE STOMATAL CONDUCTANCE, GROWTH AND SURVIVAL OF TRANSPLANTED EUCALYPTUS-MICROTHECA SEEDLINGS IN THE SUDAN [J].