نتایج جستجو برای: rainfed wheat

تعداد نتایج: 58181  

2013
S. Pradhan

A field experiment was carried out during 2009-11 on a sandy loam soil of IARI, New Delhi on wheat with four levels of irrigation (rainfed, irrigations to replenish 30, 60 and 100% moisture deficit from field capacity) as main plot factors and four levels of nitrogen (0, 30, 60 and 120 kg N/ha) as subplot factors in a split plot design. The soil moisture storage in the profile showed inverse re...

Wheat is the main focus of the economy of Kurdistan province in which the annual fluctuation of wheat yield is 4/11 times as affected by the climatic elements of the site. This study investigated the role of agro-climatic variables and indices on rainfed wheat yield in Kurdistan province. The data of planting area, amount of production, damages and yield of wheat of 31-year in 10 regions of Kur...

ژورنال: علوم آب و خاک 2020

Sloping farmlands are the major sources of soil, water and nutrient losses in arid and semi-arid regions. Information about the impacts of different tillage practices on soil erosion, nutrient loss and crop nutrient uptake on the sloping farmland of semi- arid soil is, however, limited. This study was carried out to investigate the effects of tillage direction on soil, water, nitrogen and phosp...

Among different environmental stresses, drought is of great importance that induces a highly negative effect on crop production. In order to evaluate drought tolerance in dryland wheat genotypes, 36 genotypes were studied in a randomized complete block design with three replications under rainfed (drought stress) and supplemental irrigation conditions during 2016–2017 growing season in Research...

Journal: :Heliyon 2023

Rainfed farming is a dominant agricultural system in Tigray, Ethiopia. However, rainfall characterized by short duration, intense and erratic subjected to late-onset early cessation, suggesting pressing need for Supplemental Irrigation (SI) fill the crop water demand. Understanding effects of SI during late-onset, or both, along with their underlying causes, critical knowledge gap globally. Alt...

Journal: :Journal of Arid Environments 2021

Drought is one of the most devastating climate extremes in terms its spatial extent and intensity. Rainfed areas are extremely vulnerable to drought, but effective monitoring may lessen impact such events. This study developed a composite drought index (CDI) for assessing seasonal droughts rainfed Potwar Plateau Pakistan, using remotely sensed observed meteorological datasets. We identified fou...

2014
A L Thebo P Drechsel E F Lambin

The role of urban agriculture in global food security is a topic of increasing discussion. Existing research on urban and peri-urban agriculture consists largely of case studies that frequently use disparate definitions of urban and peri-urban agriculture depending on the local context and study objectives. This lack of consistency makes quantification of the extent of this practice at the glob...

2013
John M. Halloran Robert P. Larkin Sherri L. DeFauw O. Modesto Olanya Zhongqi He

Potato productivity in the northeastern US has been relatively constant for over 50 years, raising questions about what factors are limiting productivity. Research was initiated in 2004 to identify key constraints to potato productivity by evaluating Status Quo (SQ), Soil Conserving (SC), and Soil Improving (SI) cropping systems under both rainfed and irrigated management, and it was found that...

2007
A. J. KHAN F. AZAM

Ten elite wheat inbred lines / cultivars were tested for grain yield stability at five different locations under the rainfed conditions in the North West Frontier Province of Pakistan. These inbred lines were exposed to different soil types, soil fertility, moisture levels and temperatures. GxE interaction mean squares were highly significant for grain yield. The overall mean grain yield perfor...

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