Investigating the effects of soil application of the mineral sulfur on salinity reduction and vegetative characteristics and yield of pistachio trees

Document Type : Research

Authors

1 Researcher, Pistachio Research Center

2 Pistachio Research center

3 Pistachio research Center

4 Pistachio Research Center, Horticultural Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Rafsanjan, Iran

5 Horticultural Science Research Institute - Pistachio Research School

10.22092/rhsj.2024.360542.1033

Abstract

The aim of this project was to evaluate the effect of mine sulfur on soil properties and improve the yield characteristics of pistachio trees. For this research, mine sulfur was added to pistachio orchards in Nogh city, Rafsanjan, Iran. The first time, mine sulfur was applied to the orchard in winter in treatments of 0, 1500, 3000, and 4500 kg/ha with and without animal manure. The second time was in May of the following year when this sulfur was added to the orchard in 0, 500, 1000, and 1500 kg/ha treatments along with irrigation water. All second treatments were fertilized in winter. This experiment was performed in a randomized complete block design with 11 treatments and three replications. The studied indices included soil chemical properties, leaf nutrient concentrations and yield traits of pistachio trees. The results showed that there was a significant difference between the measured soil factors, EC, SAR, P and K at depths of 0-40, 40-40, and 80-120 cm. The addition of mine sulfur from 3000 and 4500 kg/ha in February along with animal manure and 500 and 1000 kg/ha in May caused a significant reduction in soil electrical conductivity at different depths.The effect of mine sulfur on yield was positive and the highest yield was observed on the top branch is 761, 702 and 610 grams per branch respectively in 1500, 1000, and 500 kg/ha in May, which was significant in comparison with the control. In general, it can be concluded that the application of mine sulfur (sample used in this study) along with animal manure had a positive effect on improving the studied properties and the best treatment related to the application of 1500 kg/ha of mine sulfur in May that was added to the soil along with irrigation water.

Keywords

Research in Horticultural Sciences
Volume 2, Issue 2
January 2024
Pages 253-264

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