نتایج جستجو برای: rainfed area

تعداد نتایج: 586388  

2005
Renato Villano Euan Fleming

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.

Journal: :journal of agricultural science and technology 2010
f. shahbazi a. a. jafarzadeh f. sarmadian m. r. neyshabouri sh. oustan

regional impact studies of the future climate change effects are necessary because projected changes in meteorological variables differ from one region to another, and different climate systems can react in varied ways to the same changes. in this study, the effects of climate change on bioclimatic deficiency were compared in two cultivation methods (irrigated and rainfed) in a semi-arid region...

Journal: :The Science of the total environment 2014
Ch Srinivasarao Rattan Lal Sumanta Kundu M B B Prasad Babu B Venkateswarlu Anil Kumar Singh

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, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

‏‎applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...

Journal: :Water 2023

Agricultural rainfed areas of Pakistan have been facing several issues in recent years, e.g., soil erosion, nutrient runoff, and dependency on rainfall for crop growth. Wheat is considered a major staple Pakistan. The main concern these regions to conserve moisture as the depends obtained by rainfall. Gypsum one best conservers, especially areas. Hence, this study was initiated (1) explore effe...

Journal: :International Journal of Biological and Chemical Sciences 2023

The Ivorian coast is the main coconut production area where agriculture mainly rainfed. However, in this area, climate variability poses a great threat to growth and sustainable development of agriculture. This study aimed at highlighting impacts on most popular Dwarf x Tall palm hybrids world. It based evaluation from statistical tests (ANOVA, STUDENT's T-test 5%) results standardized precipit...

Journal: Desert 2018
M. Arabkhedri M. Gheitoury M. Heshmati, M. Hosseini Y. Parvizi

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...

Journal: :crop breeding journal 2011
a. moghaddam g. pietsch m. r. ardakani a. raza j. vollmann

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...

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