Land configuration and soil nutrient management options for sustainable crop production on Alfisols and Vertisols of southern peninsular India

Selvaraju, R.; Subbian, P.; Balasubramanian, A.; Lal, Rattan

doi:10.1016/s0167-1987(99)00083-5

Cited by 29 publications

(20 citation statements)

References 16 publications

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“…Hence, cowpea harvested maximum photosynthetically active radiation through improved canopy in terms of assimilatory surface area. These results are in conformity with the findings of Selvaraju et al (1999). Whereas, ridges and furrow method (11.8 q ha -1 ) as well as corrugated furrow methods (11.6 q ha -1 ) recoded lower grain yield and haulm yield of cowpea (Fig.…”

Section: Resultssupporting

confidence: 91%

Influence of land configuration on rain water use efficiency, yield and economics of cowpea (Vigna unguiculata L.) in maize-cowpea sequence cropping under rainfed condition of Northern Transitional Zone

Halli

Angadi

2018

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The main aim of land configurations is in situ conservation of soil moisture by increasing the opportunity time for augmented water use efficiency and drain out excess water. The field study was conducted for two years under rainfed conditions of Dharwad on residual soil moisture and fertility. Cowpea produced higher grain yield (13.4 q ha -1 ), haulm yield (25.6 q ha -1 ) and harvest index (34.4 %) with Broad Bed and Furrow (BBF) method of planting. Similarly, BBF method resulted in higher soil moisture content (32.09 % at 40 DAS) and rain water use efficiency (RWUE) of 5.96 kg ha-mm -1 . The RWUE had a significant and highly positive correlation with soil moisture at 40 and 55 DAS (with r value of r=0.94** and r=0.96**, respectively). BBF method of planting also registered higher gross return (Rs.42725 ha -1 ), net return (¹ 27515 ha -1 ) and benefit-cost ratio (2.82). Cowpea can be grown successfully after summer maize on existing BBF configuration for higher yield and rain water use efficiency.

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Section: Resultssupporting

confidence: 91%

Influence of land configuration on rain water use efficiency, yield and economics of cowpea (Vigna unguiculata L.) in maize-cowpea sequence cropping under rainfed condition of Northern Transitional Zone

Halli

Angadi

2018

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“…Increase in grain yield varied from 24.2% in JG11 to 27.8% in BGD103 with compartmental bunding indicating that the in-situ rainwater conserved during rainy season (July to September) improved soil moisture in the soil profile from sowing till harvest and produced better plants with greater dry matter accumulation thus resulting in higher grain yield surface storage (Selvaraju et al, 1999). The positive effects of moisture conservation practices like ridges and furrows and mulching on plant height and yield attributes of sorghum, cowpea, chickpea, chilli and sunflower have been earlier reported by Somasundaram et.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of chickpea varieties under compartmental bunding in rainfed situation

Patil

Loganandhan

Ramesha

2016

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Compartmental bunding (CB) and improved chickpea varieties were evaluated in ten farmers' fields during rainy-winter (kharif-rabi) seasons of 2012-13 in Vertisols at Bellary, India. Adopting improved chickpea varieties of BGD103 and JG11 during winter season increased the grain yields from 12.5 to 15.9%, respectively over locally cultivated A1 variety. The CB that was laid out during July (rainy season) conserved rainwater in-situ and further increased the grain yield of chickpea up to 36.7% in BGD103 and 43.9% in JG11. The increase in grain yield from 24.2% (JG11) to 27.8% (BGD103) indicates that CB is effective for in-situ rainwater conservation and improving profile soil moisture in Vertisols. However technology gap during study period was higher compared to extension gap and it was attributed to drought situation with only 81.2% of mean annual rainfall. Technology index was higher in this study and varied from 48.3% (Cultivation of BGD103 variety with CB) to 60.6% (Cultivation of JG11 variety without CB) indicating that technology index can be reduced and chickpea yields can be increased and sustained with adoption of improved chickpea production technologies including in-situ rainwater conservation practices at farmers fields. Correlation studies also indicate that grain weight, stover weight and total dry matter production per plant ultimately determine the chickpea grain and stover yields in the Vertisols of Bellary region during winter season. Higher gross and net returns with greater B:C ratio was observed with layout of farmers fields with CB and cultivation of JG11 variety.

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“…India's drylands are largely mono-cropped during the summer monsoon season (June to September). In Tamil Nadu State, at the extreme south of the Indian Peninsula, significant rainfall in both the summer and winter (October to December) monsoon seasons (Dhar et al 1982) permits double cropping, resulting in higher average annual production, but also greater production risk and frequent crop failures (Selvaraju et al 1999). High inter-annual rainfall variability exposes these dryland cropping systems to considerable risks.…”

Section: Example 2 -Credibility: Creating Social Capital In Indiamentioning

confidence: 99%

Actionable climate knowledge: from analysis to synthesis

Meinke¹,

Nelson²,

Kokic³

et al. 2006

Clim. Res.

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193

127

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The traditional reductionist approach to science has a tendency to create 'islands of knowledge in a sea of ignorance', with a much stronger focus on analysis of scientific inputs rather than synthesis of socially relevant outcomes. This might be the principal reason why intended end users of climate information generally fail to embrace what the climate science community has to offer. The translation of climate information into real-life action requires 3 essential components: salience (the perceived relevance of the information), credibility (the perceived technical quality of the information) and legitimacy (the perceived objectivity of the process by which the information is shared). We explore each of these components using 3 case studies focused on dryland cropping in Australia, India and Brazil. In regards to 'salience' we discuss the challenge for climate science to be 'policy-relevant', using Australian drought policy as an example. In a village in southern India 'credibility' was gained through engagement between scientists and risk managers with the aim of building social capital, achieved only at high cost to science institutions. Finally, in Brazil we found that 'legitimacy' is a fragile, yet renewable resource that needs to be part of the package for successful climate applications; legitimacy can be easily eroded but is difficult to recover. We conclude that climate risk management requires holistic solutions derived from cross-disciplinary and participatory, user-oriented research. Approaches that combine climate, agroecological and socioeconomic models provide the scientific capabilities for establishment of 'borderless' institutions without disciplinary constraints. Such institutions could provide the necessary support and flexibility to deliver the social benefits of climate science across diverse contexts. Our case studies show that this type of solution is already being applied, and suggest that the climate science community attempt to address existing institutional constraints, which still impede climate risk management.

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Land configuration and soil nutrient management options for sustainable crop production on Alfisols and Vertisols of southern peninsular India

Cited by 29 publications

References 16 publications

Influence of land configuration on rain water use efficiency, yield and economics of cowpea (Vigna unguiculata L.) in maize-cowpea sequence cropping under rainfed condition of Northern Transitional Zone

Influence of land configuration on rain water use efficiency, yield and economics of cowpea (Vigna unguiculata L.) in maize-cowpea sequence cropping under rainfed condition of Northern Transitional Zone

Evaluation of chickpea varieties under compartmental bunding in rainfed situation

Actionable climate knowledge: from analysis to synthesis

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