Investigating the effect of the method of application of cow manure and wheat straw and stubble, on maintaining soil moisture and stability

Document Type : Research Paper

Authors

1 Soil Science Department,Faculty of Agriculture,Lorestan University,Khoramabad, Iran

2 ,Soil Science Department,, Faculty of Agriculture, Lorestan University, Khoramabad, Iran

3 Soil science Department, Faculty of Agriculture, Lorestan University, Khoramabad, Iran

Abstract

One of the ways to reduce evaporation from the soil is to use modifiers. The aim of this research was to evaluate the effect of modifiers with two mixed and surface applications on the rate of evaporation from the soil. This research was carried out in the greenhouse of the Faculty of Agriculture of Lorestan University with treatments of wheat straw and cow manure at three levels (zero, 1 and 5% weight). The soil moisture was kept constant for 4 months at the agricultural capacity. The amount of evaporation in June and August 1400 in each pot was measured by weight in two periodes of 10 and 18 days. The results showed that there was a significant difference in the rate of evaporation between the treatments used with surface application and mixture. After the end of evaporation measurement and stopping it in June and August, wheat straw had the lowest evaporation. The use of wheat straw at the level of 5% by weight on the surface in June 4.7 and in August 1.7 times compared to the control treatment had the greatest reduction in evaporation. In addition, the use of modifiers improves the soil structure, which the results of this test show with the highest average MWD with the use of a mixture of 5% by weight of wheat straw andstubble in the amount of 0.48 mm. Due to the significant difference in the application of modifiers, the surface application of modifiers is recommended to control the rate of evaporation.

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Iranian Journal of Soil and Water Research

Articles in Press, Accepted Manuscript
Available Online from 07 February 2024

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