Impact of organic sugercane farming on economics and water use efficiency in Maharashtra

SugercaneEconomic aspectsWater use efficiencyOrganic agricultureFarmersSurveysCultivationYields

Momentum space properties from coordinate space electron density

Electron density and electron momentum density, while independently tractable experimentally, bear no direct connection without going through the many-electron wave function. However, invoking a variant of the constrained-search formulation of density functional theory, we develop a general scheme (valid for arbitrary external potentials) yielding decent momentum space properties, starting exclusively from the coordinate space electron density. Numerical illustration of the scheme is provided for the closed-shell atomic systems He, Be and Ne and for $1s^1~2s^1$ singlet electronic excited state for Helium by calculating the Compton profiles and the $$ expectation values derived from given coordinate space electron densities.Comment: 4 pages, 1 figur

The village impact of machine threshing and implications for technology development in the semi‐arid tropics of peninsular India

This study evaluates the dynamic consequences of machine threshing in the Semi‐Arid Tropics (SAT) of Peninsular India. We rely on a panel of 30 cultivator and 10 landless labour households to monitor, over five cropping years from 1975/76 to 1979/80, the impact of mechanical threshing on the village economy. Machine threshing did not significantly reduce costs, increase cropping intensity, or greatly harm labour. These results are strongly conditioned by the ecological features of the SAT. Their implications for public‐sector investment in research on selective threshing mechanisation are drawn

Watershed Based Technology: Experiences and Lessons

This paper delineates the micro-watershed based technology conceived, designed and developed by ICRISAT and reviews its performance at ICRISAT Centre and in farmers' fields. The earlier results are viewed retrospectively and lessons drawn for solving the difficult problem of spread of this technology in dryland regions of India. ICRISAT has assembled a watershed based technology for dependable rainfall areas of the semi-arid tropics regions of India. The long-term experiments at ICRISAT Centre confirmed that the application of improved technology results in considerable improvements in yields and profitability. The on-farm watershed trials in a few agro-climates of the Indian semi-arid tropics with moderate but dependable rainfall showed that gross profits from improved technology were 1.5-2 times higher than those from the traditional technology as long as management support and adequate inputs were made available. The experience shows that the continuing need for management support for watershed development, credit supply, wheeled tool carriers, infrastructure facilities for supply of seeds, fertilizers and the need of farmer's participation and their training are some of the constraints which seem to impose narrower limits on the technology spread than had earlier been anticipated. The lessons learned from these experiences suggest that these barriers can be removed by close cooperation of researchers, administrators, extension workers and bankers with active participation of the farmers in order to realize the full potential of the watershed based technology

The village level impact Of machine threshing and implications for technology development in semi-arid tropical India

Should research institutions in the public sector invest scarce resources in the evaluation and design of threshing technologies for the Semi-Arid Tropics (SAT) of India? This question is multifaceted, but it can be simplified into two dimensions--consequences and comparative advantage..

Watershed Based Technology: Experiences and Lessons

This paper delineates the micro-watershed based technology conceived, designed and developed by ICRISAT and reviews its performance at ICRISAT Centre and in farmers' fields. The earlier results are viewed retrospectively and lessons drawn for solving the difficult problem of spread of this technology in dryland regions of India. ICRISAT has assembled a watershed based technology for dependable rainfall areas of the semi-arid tropics regions of India. The long-term experiments at ICRISAT Centre confirmed that the application of improved technology results in considerable improvements in yields and profitability. The on-farm watershed trials in a few agro-climates of the Indian semi-arid tropics with moderate but dependable rainfall showed that gross profits from improved technology were 1.5-2 times higher than those from the traditional technology as long as management support and adequate inputs were made available. The experience shows that the continuing need for management support for watershed development, credit supply, wheeled tool carriers, infrastructure facilities for supply of seeds, fertilizers and the need of farmer's participation and their training are some of the constraints which seem to impose narrower limits on the technology spread than had earlier been anticipated. The lessons learned from these experiences suggest that these barriers can be removed by close cooperation of researchers, administrators, extension workers and bankers with active participation of the farmers in order to realize the full potential of the watershed based technology

Efficient utilization of energy with an improved farming system for selected semi-arid tropics

The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), India, has developed an improved technology for the management of Vertisols. The results of testing of this technology in farmers' fields in India have shown that substantially higher yields can be achieved by an efficient application of available energy resources along with other high-value inputs. The technology does not depend upon a tractorized form of energy and improves the productivity of farm labo