Plant growth and nutrient uptake in hydrophilic gel treated soil

1 December 1987

journal article
research article
Published by Taylor & Francis in Communications in Soil Science and Plant Analysis

Vol. 18 (12) , 1469-1478
https://doi.org/10.1080/00103628709367911

Abstract

Studies were carried out to determine nitrate, ammonium, potassium, calcium, magnesium, zinc and iron retention and release by adding to an oxisol a hydrophilic gel (IGETA‐GREEN P, a vinyl alcohol‐acrylic acid copolymer sodium salt from Sumitomo Chemical Co. Ltd.) and NH₄NO₃. Dionized water was percolated through the medium in a glass column and the nutrients were determined in the collected leachate. Higher ammonium, K, Ca, Mg, Zn, and Fe contents were retained at all concentrations of gel‐amended soil, compared to no treated soil. The gel treatment increased radish shoot growth, N, P, and Fe uptake, but reduced K, Ca, and Mg uptake and had no significant effect on root growth. The hydrophilic gel had a significant effect on reducing Al and increasing pH, and P, K, Ca, and Mg in soil extracted by Mehlich No. 1.

Keywords

This publication has 2 references indexed in Scilit:

Ammonium and Nitrate Retention by a Hydrophilic Gel
HortScience, 1985
Chemical Soil Conditioner Effects on Sand Soils and Turfgrass Growth¹
Agronomy Journal, 1978