1Department of Agriculture, Faculty of Animal and Agricultural Sciences, Diponegoro University, Jalan, Prof. Sudharto SH, Tembalang, 50275, Semarang, Indonesia
*Corresponding Author: Endang Dwi Purbajanti, Department of Agriculture, Faculty of Animal and Agricultural Sciences, Diponegoro University, Jalan, Prof. Sudharto SH, Tembalang, 50275, Semarang, Indonesia, Email: endang.purbajanti@live.undip.ac.id
Online published on 29 July, 2024.
The aim of the work was to evaluate the effects of different treatments viz manure as organic amendments, gypsum as amendments and nitrogen resources on salinity of saline soil.
The research was conducted using a 2×4×3 factorial design. The first factor was manure (non-manure and manure), the second factor was the addition of gypsum, @ 0, 0.75, 1.5 and 3.0 ton ha-1) and third factor was source of nitrogen i.e. without N, nitrate and ammonium fertilizer. These three factors were repeated 3 times. Data were analyzed using one-way analysis of variance followed by the Duncan multiple range test for comparisons among means with a significance level of 5%.
This research markedly reduced pH, EC, Na and markedly increased sulfate, K content. But CEC, SAR, ESP, total N, nitrate, ammonium were not significant. The highest Ca content was in the 1.5 tons ha-1 gypsum treatment and non manure. Meanwhile, in the interaction between gypsum and N resources, the highest Mg content was 3 tons ha-1 of gypsum and nitrate.
EC, Electrical conductivity, Exchangeable sodium percentage, Gypsum, Manure, Na, Nitrogen resource, Saline soil
