Investigating the short time effect of cover crops on biophysical properties of soil

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Ahmadnia F.; EBADI A.; HASHEMI M.; GHAVIDEL A.

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Journal: Journal of Water and Soil Conservation Year:2020 | Volume:26 | Issue:6 Page(s): 277-290

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Title

Investigating the short time effect of cover crops on biophysical properties of soil

Author(s)

Ahmadnia F. | EBADI A. | HASHEMI M. | GHAVIDEL A. | Issue Writer Certificate

Keywords

Cover crops biomassQ1

Earthworms countQ1

Organic matterQ1

Soil healthQ1

Soil microbial populationQ1

Abstract

Background and Objectives: Cover crops are a strategy for enhancing the Soil health and quality in agricultural systems. The relationship between cover crops and soil biological activity is an important component of Soil health. Cover crops affect many of the physical, chemical and biological properties of the soil through soil organic carbon. Additionally, they prevent the loss of soil nutrients by quickly growth and creating a suitable plant canopy on the soil surface. The aim of this study was comparing the effect of mono and mixed cropping of cover crops on soil physical and biological properties improvement on short term condition. Materials and Methods: In order to investigate the effect of cover crops on some physical and biological properties of the soil an experiment was conducted based on randomized complete block design with three replications at research farm of the University of Mohaghegh Ardabili in 2017. Experimental treatments were monoculture of rye (Secale cereal), chickling pea (Lathyrus sativus L. ) and hairy vetch (Vicia villosa) (100%) and their dual and triple intercropping with 50% and 33. 3% seed proportions, respectively. The base of seed rate on rye, chickling pea and hairy vetch monoculture were 100, 25 and 25 Kgha-1 respectively. Results: The results showed that the highest biomass of cover crops (530 gm-2) obtained from rye monoculture and the lowest biomass from hairy vetch monoculture and hairy vetch+ chickling pea (85. 5 and 91. 6 gm-2 respectively) intercropping at the terminating time of the cover crops. Also, the comparison of the means showed that the highest Organic matter (0. 53%) and Soil microbial population (2600000 number per gram) were obtained from rye + chickling pea +hairy vetch intercropping. The soil Organic matter (SOM) increased 11. 3% by rye + chickling pea +hairy vetch intercropping relative to control (no cover crop). The highest number of earth worms belonged to rye monoculture treatments. On average, earthworms in all of cover crops treatments increased by 80. 5% relative to control. Also, the intercropping of rye +hairy vetch caused the lowest bulk density (1. 01 gcm-3). The soil bulk density reduced 6. 17% by rye + chickling pea relative to control. Cover crops decreased the time of water infiltration in the soil. The minimum time required for water infiltration on growing (8. 39 Sec. ) and terminating time of cover crops (4. 99 Sec. ) obtained by hairy vetch monoculture and rye + chickling pea intercropping. Conclusion: Cover crops, whether mono cultured or mixed, improved soil physical and biological properties even in one growing season. Rye and hairy vetch were the most effective in dual and triple intercropping system.

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APA: Copy

Ahmadnia, F., EBADI, A., HASHEMI, M., & GHAVIDEL, A.. (2020). Investigating the short time effect of cover crops on biophysical properties of soil. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 26(6 ), 277-290. SID. https://sid.ir/paper/391064/en

Vancouver: Copy

Ahmadnia F., EBADI A., HASHEMI M., GHAVIDEL A.. Investigating the short time effect of cover crops on biophysical properties of soil. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2020;26(6 ):277-290. Available from: https://sid.ir/paper/391064/en

IEEE: Copy

F. Ahmadnia, A. EBADI, M. HASHEMI, and A. GHAVIDEL, “Investigating the short time effect of cover crops on biophysical properties of soil,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 26, no. 6 , pp. 277–290, 2020, [Online]. Available: https://sid.ir/paper/391064/en

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