Improved Soil Environment Under Conservation Agriculture

Pramanik, Pragati; Bhattacharya, Priya; Chakrabarti, Bidisha; Ghosh, Tridiv

doi:10.1007/978-981-13-8832-3_5

Sustainable Management of Soil and Environment 2019

DOI: 10.1007/978-981-13-8832-3_5

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Improved Soil Environment Under Conservation Agriculture

Pragati Pramanik

Priya Bhattacharya

Bidisha Chakrabarti

et al.

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Cited by 3 publications

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“…To overcome these problems, conservation agriculture (CA) has been considered a solution worldwide. CA is based on the principles of minimal soil disturbance; permanent soil covers with crop residues or growing cover crops, and diversified crop rotations.The advantages and challenges of CA practices have been extensively discussed (Shafeeq et al 2020;, Chakrabarti et al 2014, Pramanik et al 2019and Hobbs 2007. Immediate effects of CA are increased water infiltration (Rai et al 2018) and soil moisture content (Pathak et al 2017 andBhattacharya et al 2000), reduced water runoff, evaporation and soil erosion.…”

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Evaluation of different infiltration models under long term conservation agricultural practices

et al. 2021

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A study was undertaken to evaluate the long term effect of different conservation agriculture (CA) practices on infiltration characteristics of soil and empirical Kostiakov model and physical process based Green and Ampt, and Philip models were used to predict infiltration rates. The performance of different models was evaluated using statistical criteria. Six treatments were selected, viz. conventional tillage (CT), permanent narrow bed (PNB), permanent narrow bed with residue (PNB+R), permanent broad bed (PBB), permanent broad bed with residue (PBB+R) and zero tillage (ZT). Results showed that the initial infiltration rate was highest (22.93 cm hr-1) in PBB+R and was lowest (7.64 cm hr-1) in CT. Cumulative infiltration of all the treatments followed the order: PBB+R>PNB+R>PBB>PNB>ZT>CT. The ‘a’ values of Kostiakov model was 197.5 and 310 % higher in PBB and PBB+R as compared to CT. Steady state infiltration (ic) of Green and Ampt model was found to be highest (8.47 cm hr-1) in PBB+R and was lowest (1.88 cm hr-1) in CT. Sorptivity (S) parameter (cm hr-0.5) of the Phillip model was found to be highest in PNB+R (67.33) followed by PBB+R (43.61) and lowest in CT (16.23). Highest saturated hydraulic conductivity (‘K’) value of Phillip model was obtained in PBB+R followed by PBB> PNB>PNB+R>CT. After checking the model performance, it has been found that simple empirical Kostiakov (1932) infiltration model represented the infiltration rate and time relationship in a better way and characterized the best fit with the experimentally observed field infiltration data.

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Evaluation of different infiltration models under long term conservation agricultural practices

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Yield Stability and Quality of Wheat (Triticum spp.) and Barley (Hordeum Vulgare) Populations Evolving under Different Microenvironments: A review

Al-Khatib

Kafawin

Grando

2023

Jordan j. Agr. sci.

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Climate change, human population growth, human health and food security, safety, and sovereignty all demand that the role of biodiversity in plant breeding be revisited. From a biological standpoint, it is possible that populations of diverse plants developed by evolutionary plant breeding will be able to handle the majority of these major issues. Water stress and soil nutrient deficiency may have a negative impact on wheat (Triticum spp.) and barley (Hordeum vulgare) yields and qualities. Drought-tolerant wheat cultivars with high yield and quality potential and improved grain protein content must be developed if food security is to be maintained. Wheat and barley (Triticum spp. and Hordeum vulgare, respectively) are the focus of this research, which aims to examine the stability of evolutionary populations (EPs) in the face of stressful and changeable settings. It's also important to look at how evolved populations stack up against improved varieties in terms of yield and its components. There has not been much progress in making wheat and barley more resistant to drought, especially in Jordan, where the problem is felt the most.

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Variation of porosity, pore size distribution and soil physical properties under conservation agriculture

et al. 2020

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For sustainable crop production and maintenance of soil health, conservation agriculture (CA) practices provides an opportunity for improving soil structure and physical health, nutrient and water use efficiency, soil organic carbon and mitigation of greenhouse gases emission from agriculture. CA is primarily based on four crop management practices such as minimum soil disturbance or no-tillage; permanent or semi-permanent retention of crop residue; crop rotation and control traffic. Different CA management practices affect crop yield as well as soil properties. CA makes necessary modifications in different soil hydro-physical properties, viz. increase in soil water infiltration, reduction in water runoff and soil loss, and reduction in evaporation loss. No tillage (NT), residue retention and crop rotation combined effect the soil organic carbon concentration. Different crop rotations and residue retentions and crops with different rooting depths used in CA practices have proved to reduce the compaction constraints.CA can help to mitigate GHG emissions, viz methane (CH4) and nitrous oxide (N2O) from agriculture by improving soil C sequestration, enhancing soil quality, nitrogen and water use efficiencies, and decreasing fuel consumption. But effect of CA and conventional agricultural practices of porosity and pore size distribution is very much limited. When CA is practiced for six to ten years there is improvement in soil structure, porosity and pore size distribution, macro-micro faunal activity, and organic matter content..The soil under ZT has the lowest porosity as compared to conventional management practices. The highest porosity and the maximum connected pores are frequently seen in conventionally tilled soil. In this paper, an attempt has been made to review the variation of porosity and pore size distribution and other soil physical properties under conservation agricultural practices.

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Improved Soil Environment Under Conservation Agriculture

Cited by 3 publications

References 68 publications

Evaluation of different infiltration models under long term conservation agricultural practices

Evaluation of different infiltration models under long term conservation agricultural practices

Yield Stability and Quality of Wheat (Triticum spp.) and Barley (Hordeum Vulgare) Populations Evolving under Different Microenvironments: A review

Variation of porosity, pore size distribution and soil physical properties under conservation agriculture

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