نتایج جستجو برای: land under cotton cultivation

تعداد نتایج: 1197765  

2011
Veronique Theriault

Using cross-sectional survey data collected under the Cotton Sector Reform Project, of the Africa, Power, and Politics Programme during summer 2009 in Benin, Burkina Faso, and Mali, this research aims to: 1) expand the literature on cotton reforms and efficiency by discussing the main institutional changes that have occurred with the recent market-oriented reforms, 2) and quantitatively estimat...

Journal: :Genetics and molecular research : GMR 2016
F J C Farias L P Carvalho J L Silva Filho P E Teodoro

Seed cotton yield is a trait governed by multiple genes that cause changes in the performance of genotypes depending on the cultivation environment. Breeding programs examine the genotype x environment interaction (GE) using precise statistical methods, such as AMMI (additive main effects and multiplicative interaction) and GGE biplot (genotype main effects + genotype x environment interaction)...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2013
Richard B Chandler David I King Raul Raudales Richard Trubey Carlin Chandler Víctor Julio Arce Chávez

Two contrasting strategies have been proposed for conserving biological diversity while meeting the increasing demand for agricultural products: land sparing and land sharing production systems. Land sparing involves increasing yield to reduce the amount of land needed for agriculture, whereas land-sharing agricultural practices incorporate elements of native ecosystems into the production syst...

2009
K. C. Allen

Farm records were used to study the temporal and spatial distribution of bollworm, Helicoverpa zea (Boddie), tobacco budworm, Heliothis virescens (F.), (collectively heliothines) and tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), on cotton, Gossypium hirsutum L., across a 4000 ha farm in southeastern Arkansas. The influence of the percentage of corn, Z. mays L., cotton, rice, Oryz...

Journal: :international journal of agricultural management and development 2013
mojtaba sookhtanlo hesamedin gholami seyyed reza es’haghi

identification and analysis of farmers’ vulnerability associated with their risk aversion degree is one of the necessary requirements for planning and reducing impacts of drought in iran. so, this study was investigated three risk vulnerability parameters (economic, social and technical) among wheat farmers categorized in accordance with their risk aversion degree in the mashhad county (iran) b...

2004
MATTHEW J. GRAY LOREN M. SMITH ROBERTO BRENES

Anthropogenic disturbance of landscapes surrounding wetlands is considered a factor in local and global amphibian declines. Few data exist on the effects of agricultural cultivation of wetland watersheds on amphibians, and results from previous studies are contradictory. Our objective was to test the effects of general anthropogenic land use (cultivation vs. grassland) on the demographics of se...

2014
Xiaorong Wei Mingan Shao William Gale Linhai Li

Several reviews have analyzed the factors that affect the change in soil organic C (SOC) when forest is converted to agricultural land; however, the effects of forest type and cultivation stage on these changes have generally been overlooked. We collated observations from 453 paired or chronosequential sites where forests have been converted to agricultural land and then assessed the effects of...

2016
Hui Gao Jintong Liu A. Egrinya Eneji Lipu Han Limei Tan

Managing the rapidly changing saline-alkali land under cultivation in the coastal areas of China is important not only for mitigating the negative impacts of such land on the environment, but also for ensuring long-term sustainability of agriculture. In this light, setting up rapid monitoring systems to assist decision-making in developing sustainable management plans is therefore an absolute n...

Journal: :Revista Caatinga 2023

ABSTRACT The excess of salts in irrigation water restricts agricultural exploitation arid and semi-arid regions. Thus, searching for strategies cultivation under salt stress conditions is important the expansion irrigated agriculture these objective this study was to evaluate gas exchange growth rates naturally colored-fiber cotton genotypes with saline exogenous foliar application hydrogen per...

2013
Alan L. Wright Miguel S. Castillo

Land use changes in the Everglades Agricultural Area (EAA) of south Florida may alter microbial activity and organic matter decomposition and ultimately influence the fate of P in soil. The objectives of this study were to determine effects of long-term cultivation and fertilization on microbial activity and P dynamics for contrasting land uses in the EAA. Soils (0-15 cm) under pasture for 100 ...

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