Burn or bury? A comparative cost–benefit analysis of crop residue management practices among smallholder rice farmers in northern Vietnam

A daily water balance model of catchment behaviour was used with rainfall and runoff data from three 1 ha catchments over the period 1976-1981 inclusive to study the effects of different practices of crop residue management on volumes and peak rates of runoff. The practices studied were stubble burning, stubble incorporation, and stubble mulching. Rainfall and runoff data from the six-year study period were used to calibrate the catchment model to each of the management practices in turn. A 64-year record of daily rainfalls from a nearby meteorological station was used to estimate the long-term effects of the practices on the frequency distributions of runoff. An empirical relationship between peak rates of runoff and daily amounts of runoff was used with the daily water balance model to estimate the effects of the practices on peak rates of runoff. Burning of stubble produced the highest peak rates and amounts of runoff and mulching the lowest.

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Energy use pattern of diversified cropping systems under different nutrient and crop residue management practices in Eastern Indo-Gangetic plain

Journal of Environmental Biology ◽

10.22438/jeb/42/4/mrn-1463 ◽

2021 ◽

Vol 42 (4) ◽

pp. 1053-1061

Author(s):

M. Kumar ◽

◽

S. Mitra ◽

A. Bera ◽

M.R. Naik ◽

...

Keyword(s):

Carbon Footprint ◽

Crop Residue ◽

Energy Use ◽

Management Practices ◽

Cropping Systems ◽

Cropping System ◽

Residue Management ◽

Energy Output ◽

Net Energy ◽

Crop Residue Management

Aim: Assessment of energy input output relationship, greenhouse gases emission and carbon footprint of diversified jute-rice cropping systems under different nutrients and crop residue management practices. Methodology: The inventory was prepared for all inputs required for crop cultivation and outputs of crops in cropping systems. These inputs and outputs were converted into energy by multiplying with energy equivalent coefficient and CO2 emission coefficient following standard procedure. Results: Jute-rice-baby corn cropping system recorded significantly higher net energy (324 GJ ha-1) and energy use efficiency (8.02). Among different nutrient and crop management (NCRM) practices, significantly higher energy output (336.9 GJ ha-1) and net energy (291.4 GJ ha-1) recorded 100% NPK with crop residue. The highest carbon footprint recorded with rice-rice (0.44 kg COe kg-1 economic yield) and the lowestwith jute-rice-pea (0.29 kg COe kg-1 economic yield) cropping system. Among different NCRM practices, higher carbon footprint was (0.38 kg COe kg-1 economic yield) recorded with 100% NPK with crop residue. Interpretation: The energy efficient and low input required cropping systems which include legume crops like garden pea and mungbean should be considered for cultivation for diversifying the existing rice-rice cropping system in Eastern India.

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Production of Puno and Titicaca quinoa cultivars - cost benefit analysis

ROMANIAN BIOTECHNOLOGICAL LETTERS ◽

10.25083/rbl/26.5/2953.2963 ◽

2021 ◽

Vol 26 (5) ◽

pp. 2953-2963

Author(s):

SLAĐANA SAVIĆ ◽

◽

BORISZ CZEKUS ◽

ENIKE GREGORIĆ ◽

SONJA ĐURIČIN ◽

...

Keyword(s):

Management Practices ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Cost Effective ◽

Economic Benefits ◽

Climatic Conditions ◽

Benefit Analysis ◽

Growing Seasons ◽

Arid Conditions ◽

The Republic

The aim of the paper is to test the effect of climatic conditions and management practices on the yield of two quinoa cultivars (Puno and Titicaca) and to analyze the economic benefits of quinoa productivity. The experiments were carried out during the 2017 and 2019 growing seasons in rain-fed conditions on a Serbian farm. The results of the two-year long experiments proved that the growing of the quinoa cultivar Puno and particularly the cultivar Titicaca in the agro-ecological conditions of Serbia would be remarkably successful from the aspect of agronomy (with the obtained average yield of 2.5 t ha-1 ) as well as from the aspect of economy (with the achieved average profit of 9,411 € ha-1 ). The obtained profit values indicate that the quinoa production in the Republic of Serbia would be more cost-effective than the production of the field crops which are already produced, particularly in the increasingly present arid conditions.

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A comparative cost-benefit analysis of mobile and sedentary pastoral production systems in selected villages in Northern Tanzania.

Climate change impacts and sustainability: ecosystems of Tanzania ◽

10.1079/9781789242966.0059 ◽

2020 ◽

pp. 59-98

Author(s):

Lucas E. Yamat ◽

Claude G. Mung'ong'o

Keyword(s):

Production System ◽

Null Hypothesis ◽

Production Systems ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Benefit Analysis ◽

Comparative Cost ◽

Pastoral Production ◽

To Come ◽

The One

Abstract Despite a growing body of evidence that highlights the economic, social and environmental benefits of mobile pastoralism, few governments are ready to tolerate mobility and many policy makers promote knowingly or inadvertently the policies of sedentarization. This production system seems not to be clearly understood by many and has been characterized as backward, environmentally destructive and economically unsustainable; and the view is that it should be replaced with more sedentary forms of livestock production or other beneficial land uses. The overriding question is whether sedentary livestock keeping is more productive and utilizes fewer resources and less space than the mobile pastoral system. This study carried out a comparative cost-benefit analysis of the two production systems in selected villages of Kiteto and Karatu districts. The aim was to come up with credible data to test this hypothesis. Two alternatives were compared in terms of their net present value (NPV) to test a null hypothesis. The alternative with an NPV greater than zero or higher than its alternative was accepted to be more viable compared with the one with an NPV less than zero or less than its alternative. Whenever the NPV of the sedentary production system in the analysis was shown to be greater than zero and/or greater than the NPV of the mobile pastoral production system the null hypothesis was accepted and vice versa. The study was conducted in Makame village of Kiteto District and Dofa village of Karatu District. Makame village represents a mobile pastoral production system while Dofa village represents a sedentary production system. The study employed a quantitative approach using a household survey in the two villages. The comparative cost-benefit analysis was carried out using monetary values derived from the livestock unit statistical approach. The findings have revealed that the average cost of maintaining a mobile pastoral and sedentary production systems are TSh90,096,333 and TSh112,295,200, respectively. The cost-benefit ratios are 1:0.5 for a mobile pastoral production system and 1:0.25 for the sedentary one.

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