Impact of rice-husk ash on the soil biophysical and agronomic parameters of wheat crop under a dry tropical ecosystem

Singh, Rishi Pal; Srivastava, Pratap; Singh, Pardeep; Sharma, Archana; Singh, H. K.; Raghubanshi, A. S.

doi:10.1016/j.ecolind.2018.04.043

Cited by 46 publications

(41 citation statements)

References 106 publications

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“…Average monthly rainfall recorded for the study area was 1100 mm whereas average temperature reported was 8.7 °C and 45.0 °C during winter and summer seasons, respectively. The soil is rich alluvial inceptisol with silty-loam texture (Singh et al 2018). A late sown (heat tolerant) wheat crop variety HUW-510 was sown on 20th January 2016 and harvested on 28th April 2016.…”

Section: Methodsmentioning

confidence: 99%

“…Previous studies encouraged the role of organic amendments for improving soil quality and crop productivity in different regions of the world (Srivastava et al 2016;Ramzani et al 2017). However, increased GHGs emission remains a major concern for the sole organic manure amended systems (Searchinger et al 2018;Singh et al 2018). Thus, to address the multifaceted challenges of soil quality deterioration, GHGs emission, water supply and demand balance, waste management, and improving crop WP, application of biochar has been considered as a promising instrument (Lehmann and Joseph 2009;Singh et al 2015;Chen et al 2019;Fischer et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, biochar application combined with previously adapted practices, such as organic farming and chemical fertilizer-based agriculture, is being promoted for managing the agricultural sustainability (Agegnehu et al 2016;Agbna et al 2017;Singh et al 2018;Chen at el. 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, there is an ample scope for exploring the role of biochar in agro-management in several developing and resource-poor countries (Gwenzi et al 2015). Regions like sub-Saharan Africa, and South and Southeast Asia are rainfed and most vulnerable to water availability (Gwenzi et al 2015;Singh et al 2018). Moreover, research on the role of biochar application with previously adapted organic and chemical fertilizers-based cropping systems in the dry tropical agro-ecosystems of India is very limited.…”

Section: Introductionmentioning

confidence: 99%

“…In a study conducted in a dry tropical agro-ecosystem, Singh et al (2018) explored the role of rice husk biochar and found better soil properties and agronomic performance of wheat crop under combined biochar, organic, and chemical fertilizer applied soils. Agriculture is the major livelihood option for the people in the region, and it is vulnerable to precipitation regimes with an expected water scarcity condition in the near future.…”

Section: Introductionmentioning

confidence: 99%

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Impact of sole and combined application of biochar, organic and chemical fertilizers on wheat crop yield and water productivity in a dry tropical agro-ecosystem

Singh

et al. 2019

Biochar

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Agriculture under changing climate scenario is facing major challenges of water scarcity and resource imbalances. Crop water productivity (WP) may act as an indicator of crop responses to water limitation. Organic amendments such as biochar and manure application to soil are suggested for improving soil quality and reducing water requirements from agricultural sector. However, studies exploring the impact of biochar as sole or in combination with organic and/or chemical fertilizers on WP in dry tropical agro-ecosystems are limited. In this study, we observed the effect of rice-husk ash (RHA, biochar) along with farmyard manure (FYM) and chemical fertilizers (CF) under varying water conditions on soil hydro-physical properties, yield and WP of wheat crop. Water-filled pore space (WFPS), grain and straw yield, irrigation and total water productivity varied significantly (at P < 0.001) at treatment level. Grain and straw yield were found higher under sole and combined CF applied treatments. Sole and combined RHA and FYM amendment improved water holding capacity (WHC) and WFPS, whereas a decrease in crop yield was observed as compared to the control. Irrigation and total water productivity were found higher under combined RHA + FYM and sole CF treatments with reduced water supply (except sole CF) as compared to control and sole RHA treatments with full water irrigation. Crop water productivity was found positively correlated with grain and straw yields, however, significant correlations were not observed with WHC and WFPS. Results indicate that increasing soil hydro-physical properties in silty-loam soil may hinder crop yield and WP under sole biochar applied soils. Overall, the implications of the study would help in devising agro-management practices based on combined application of RHA and FYM with reduced chemical fertilizer and water inputs to mitigate the impacts of climate change without compromising crop yield in the highly vulnerable dry tropical agro-ecosystem of India. Moreover, long-term studies are needed in these ecosystems to identify the appropriate agricultural package for mitigating the forthcoming water scarcity conditions.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Impact of sole and combined application of biochar, organic and chemical fertilizers on wheat crop yield and water productivity in a dry tropical agro-ecosystem

Singh

et al. 2019

Biochar

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Biochar‐based nutrient management as a futuristic scalable strategy for C‐sequestration in semiarid tropics

et al. 2023

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Climate and agriculture experts emphasize the need to develop a carbon sink in the soil to help alleviate the effects of climate change. A 2‐year field experiment in semiarid tropical drylands tested sustainable nutrient management approaches to sequester carbon in the soil. We analyzed nine different treatments, including chemical fertilizers (as blanket and soil test‐based [STB] recommendations), sole organic (biochar and compost), and their combinations (with 75% and 50% STB recommendation) as integrated applications (integrated nutrient management [INM]) in the maize–chickpea cropping sequence. We report that biochar treatments show higher (24%–30%) organic carbon stock in the top layer of soil than the respective compost treatments. Furthermore, the biochar‐based INM showed the maximum residual effect in chickpea (Cicer arietinum L.) crops. The system equivalent yield showed the best results (8 Mg ha−1) for 50% need‐based fertilizer and 50% biochar. Although we observed that sole‐biochar sequestered the highest amount of soil organic carbon (0.69%) in the topsoil compared to the other treatments, it was not scalable due to the lower yield for maize crops. Similarly, composts showed more labile carbon concentrations as microbial biomass but lagged behind biochar treatments for organic carbon storage. The system performance expressed as net returns and benefits–cost ratio also showed better results for biochar‐based INM. The findings show that drylands facing widespread land degradation in terms of nutrient imbalances and low C levels will benefit from an integrated approach of need‐based fertilizer with biochar application. Therefore, this might be a long‐term sustainable strategy for C‐sequestration and food security for semiarid tropical drylands.

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Water productivity, yield and agronomic attributes of maize crop in response to varied irrigation levels and biochar–compost application

2021

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BACKGROUND Due to the rapid increase in world population, the demand for freshwater is increasing day by day. There is also immense pressure on the agriculture sector to produce more food with limited supplies of water. About 75% of freshwater is used in crop production out of which 63% is lost due to poor farm practices and evapotranspiration. Enhancement of crop water productivity for sustainable agriculture production especially in areas having water scarcity plausibly contributes towards the solution of water scarcity. RESULTS The combined application of biochar and compost has a highly significant impact on maize yield with increased grain production, i.e. 6.44 and 6.52 t ha−1 at 60% irrigation level with combined application of biochar and compost as compared with control at 6.39 and 6.44 t ha−1 at 100% irrigation level in autumn and spring seasons, respectively, by saving 40% of water. Furthermore, the highest value of water productivity (1.51 and 1.16 kg m−3) was achieved at 60% irrigation level with combined application of soil amendments. Also, cost–benefit analysis has shown highest values of net benefit with soil organic amendments. CONCLUSIONS It is concluded that addition of biochar and compost to soil has the potential to increase crop yield and growth even at low irrigation levels by enhancing water use efficiency. © 2021 Society of Chemical Industry

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Impact of rice-husk ash on the soil biophysical and agronomic parameters of wheat crop under a dry tropical ecosystem

Cited by 46 publications

References 106 publications

Impact of sole and combined application of biochar, organic and chemical fertilizers on wheat crop yield and water productivity in a dry tropical agro-ecosystem

Impact of sole and combined application of biochar, organic and chemical fertilizers on wheat crop yield and water productivity in a dry tropical agro-ecosystem

Biochar‐based nutrient management as a futuristic scalable strategy for C‐sequestration in semiarid tropics

Water productivity, yield and agronomic attributes of maize crop in response to varied irrigation levels and biochar–compost application

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