نتایج جستجو برای: rainfed agriculture

تعداد نتایج: 66736  

2017
Juliann E Aukema Narcisa G Pricope Gregory J Husak David Lopez-Carr

Humans and the ecosystem services they depend on are threatened by climate change. Places with high or growing human population as well as increasing climate variability, have a reduced ability to provide ecosystem services just as the need for these services is most critical. A spiral of vulnerability and ecosystem degradation often ensues in such places. We apply different global conservation...

2007
MICHAEL LIPTON

The study on ‘‘pro-poor intervention strategies in irrigated agriculture in Asia’’ by Hussain (2005) shows that, in 26 major and medium-size canal irrigation schemes in Asia, irrigated areas average 20% lower poverty than adjacent rainfed areas; gains are more with pro-poor management of water for farming (PPMWF) and where distribution of farmland or farm water is more equal. These findings, an...

2006
HANS SCHREIER SANDRA BROWN MARGARET SCHMIDT

SUSANNE WYMANN Institute of Geography University of Bern 12 Hallerstrasse 3012 Bern; Switzerland ABSTRACT/GIS overlay techniques were used to provide a quantitative historic documentation of deforestation and land-use dynamics in the Middle Mountains of Nepal between 1947 and 1990. Deforestation was most critical in the 1960s, but active afforestation programs in the 1980s. have reversed the pr...

2011
Alex Bowen Sam Fankhauser

The threat that human-induced climate change poses to many of the least developed countries (LdCs) is profound. Greater dependence on rainfed agriculture and forestry as sources of employment and income makes many of them more vulnerable to climatic changes and variability. many LdCs are already subject to climatic stress because of their location in the Tropics and other areas subject to a hig...

2016
Sikander Pal Jiangsan Zhao Asif Khan Narendra Singh Yadav Albert Batushansky Simon Barak Boris Rewald Aaron Fait Naftali Lazarovitch Shimon Rachmilevitch

Dwindling water resources combined with meeting the demands for food security require maximizing water use efficiency (WUE) both in rainfed and irrigated agriculture. In this regard, deficit irrigation (DI), defined as the administration of water below full crop-water requirements (evapotranspiration), is a valuable practice to contain irrigation water use. In this study, the mechanism of paclo...

Journal: :Spanish Journal of Agricultural Research 2021

Aim of study: To assess the impacts climate change on local agriculture with a high resolution in Mediterranean region diversity climates.Area Catalonia (NW Spain).Material and methods: Based historical meteorological records regionalization RCP4.5 model created by Catalan Meteorological Service, Papadakis agro-climate classification was calculated for two scenarios. The changes agro-climatic s...

امام, یحیی , تدین, محمودرضا,

  Photosynthesis and wheat grain yield responses to supplemental irrigation with different amount of applied water under dryland conditions were investigated. Therefore, a two-year field experiment was conducted research farm of College of Agriculture, Shiraz University during 2004-2005. Five levels of irrigation including dryland conditions, irrigation at stem elongation, booting, flowering an...

In order to determine yield stability of 23 bread wheat genotypes and two commercial cultivars as check, an experiment was conducted based on a randomized complete block design with three replications in the experimental field of faculty of Agriculture, Razi University Kermanshah (Iran), during three cropping seasons (2015-2018). The results of combined ANOVA showed that the effect of environme...

Supplementary irrigation moderates the damage caused by drought stress in rainfed agriculture. Meanwhile, the application of nano fertilizers and methanol as the foliar application can be considered as effective management strategies to improve production under dryland conditions. For this purpose, the effect of supplementary irrigation, nano fertilizer spraying, and methanol foliar spraying wa...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید