There have been many previous studies of technical inefficiency in rice production in the Philippines, but none has focused simultaneously on production risk and technical inefficiency at the farm level. In this study, we analyse technical inefficiency in a rainfed lowland rice environment in Central Luzon using a stochastic frontier production function with a heteroskedastic error structure.

The importance of rainfed areas and animal agriculture on productivity enhancement and food security for economic rural growth in Asia is discussed in the context of opportunities for increasing potential contribution from them. The extent of the rainfed area of about 223 million hectares and the biophysical attributes are described. They have been variously referred to inter alia as fragile, m...

Severe soil organic carbon (SOC) depletion is a major constraint in rainfed agroecosystems in India because it directly influences soil quality, crop productivity and sustainability. The magnitude of soil organic, inorganic and total carbon stocks in the semi-arid bioclimate is estimated at 2.9, 1.9 and 4.8 Pg respectively. Sorghum, finger millet, pearl millet, maize, rice, groundnut, soybean, ...

Zhou, X. B. and Y. h. Chen, 2011. Yield response of winter wheat to row spacing under irrigated and rainfed conditions. Bulg. J. Agric. Sci., 17: 158-166 In China, wheat (Triticum aestivum L.) is cultivated across a wide range of climatic conditions. The average rainfall was recorded at 696.6 mm per year from 1971 to 2008 at Taian in northern China. Considerable variability in the row spacing (...

Abstract Difficulties in efficient utilization of seasonal precipitation cause limitations yields and even total crop failure on rainfed farms semi-arid East Africa. The objective the present study was to find out if covering soil with plant residue mulch at a site could retain water between events build dry spell resilience by reducing evaporation increasing infiltration deeper soil. Covering ...

The forest soils are the key parts of the Earth system that are globally degraded through anthrop induced deforestation, mainly converting to other landuses. The present study was conducted in Gazafolya village located in Merek watershed, Kermanshah, Iran, in which the soil quality of the forest and converted forest (rainfed lands) with the same topographic and geologic conditions were compared...

The complexities of smallholder farming systems pose a challenge in demonstrating the potential benefits or risks new technologies and policies. Using Integrated Analysis Tool, rule-based dynamic simulation model, this study tried to improve performance major Tamil Nadu State India. Amongst four viz. Black gram-based (BFS), Paddy-based (PFS), Farming Systems (IFS) Villupuram district Dryland Sy...

Increasing water and nitrogen use efficiencies (i.e., WUE NUE) in dryland agroecosystems to maintain high agricultural output with lower environmental costs, such as minimal soil depletion nitrate-N residue, are key responsibilities assure food security for a growing global population. The impact of N rate on balance, nitrate grain yield, WUE, crop recovery efficiency (REN), agronomic fertilize...

alfalfa is the best known fodder crop with high ability of biological nitrogen fixation and drought tolerance in dry, pannonian region of east austria. different morphological and physiological characteristics of 18 alfalfa genotypes from different geographical origins, 8 iranian ecotypes and 10 european cultivars were evaluated under irrigated and rainfed conditions during 2006-08 cropping sea...