نتایج جستجو برای: maize production

تعداد نتایج: 635868  

Journal: :کشاورزی (منتشر نمی شود) 0
معصومه حاجی حیدری کارشناس ارشد، گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران امیرحسین چیذری استادیار، گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران

on the basis of acreage, production and import amounts, maize is one of the strategic products in iran, regarding defects of marketing system of maize, in this analysis using yearly observations between 1368 to 1385 (18 years) and eviews software, the marketing and econometric model of maize marketing margin was studied. the results show that the most important factor in the maize marketing mar...

2011
David Mather T. S. Jayne

Despite the resurgence of parastatal marketing boards and strategic grain reserves over the last decade in eastern and southern Africa, there is little empirical evidence about how their activities affect smallholder input use and cropping decisions. This paper uses panel survey data from 1997-2007 on Kenyan smallholders to investigate the effect of Kenya’s National Cereal Produce Board activit...

2014
Terence Epule Epule Christopher Robin Bryant

Most studies on the responsiveness of maize production to various variables have dwelled on the responsiveness of maize production to variations in precipitation or temperature. This study seeks to verify the response of maize production in Cameroon to both climate trends and land use change. Therefore, for the first time, our study presents findings on the relative influence of both climate an...

Journal: :بوم شناسی کشاورزی 0
علیرضا کوچکی مهدی نصیری محلاتی حامد منصوری روح اله مرادی

increasing resource use efficiency is one of the important ways to enhance agricultural productions and reduce environmental hazards. for this purpose, improvement of n use efficiency is an effective approach. nitrogen losses not only occur in field but also in the processing course. the objective of this study was to calculate nitrogen losses and efficiency during production to consumption for...

2010
Shijuan Li Yeping Zhu

Abstr act. Cooperating with Agriculture and Animal Husbandry Administrative Bureau of Dingxing County, Hebei province, we applied the agricultural information software of Digital Maize Planting and Management System to guide local maize production. This system can direct the maize production during the whole course including digital simulation and design of maize production, planting plan befor...

2015
Fangping Gong Xiaolin Wu Huiyong Zhang Yanhui Chen Wei Wang

Achieving grain supply security with limited arable land is a major challenge in the twenty-first century, owing to the changing climate and increasing global population. Maize plays an increasingly vital role in global grain production. As a C4 plant, maize has a high yield potential. Maize is predicted to become the number one cereal in the world by 2020. However, maize production has plateau...

Journal: :به زراعی کشاورزی 0
پرستو مرادی دانشجوی دکتری زراعت، گروه زراعت و اصلاح نباتات دانشکدة علوم کشاورزی دانشگاه گیلان، رشت، ایران جعفر اصغری استاد، گروه زراعت و اصلاح نباتات، دانشکدة علوم کشاورزی، دانشگاه گیلان، رشت، ایران غلامرضا محسن آبادی استادیار، گروه زراعت و اصلاح نباتات، دانشکدة علوم کشاورزی، دانشگاه گیلان، رشت، ایران حبیب الله سمیع زاده دانشیار، گروه زراعت و اصلاح نباتات، دانشکدة علوم کشاورزی، دانشگاه گیلان، رشت، ایران

to compare the quantity and quality of forge production in intercropping systems with maize, pinto bean and pumpkin, an experiment based on randomized complete block design with three replications was conducted at faculty of agricultural science, university of guilan, during 2012 growing season. the treatments consisted of maize, pinto bean and naked pumpkin sole cropping, maize – pinto bean an...

2000
M. FARUQ HASAN Mohammad Danesh

Faruq Hasan M. 2008. Economic Efficiency and Constraints of Maize Production in the Northern Region of Bangladesh. j. innov.dev.strategy 1(1): 18-32 The study was conducted at the Sadar upazila of Dinajpur and Panchagarh to estimate the costs, returns and economic efficiency of maize production compared to Boro rice. The growth rate of maize in the country and constraints to maize production at...

Journal: :Journal of development and agricultural economics 2015
Asmerom Kidane Ernest Timgum Ngeh

The study presented here considers the relative efficiency of planting tobacco and maize in the tobacco-producing Tabora region of Tanzania. The study used a 2013 survey that was conducted among smallholder farmers in the Tabora region. The aim was to investigate whether farmers are better off planting tobacco or maize. The paper briefly reviews the importance of agriculture in general and toba...

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One of the ways of haploid production is a cross between wheat and maize. Recently success has been achieved in this method, leading to the production of zygotes; these zygotes generally undergo elimination of maize chromosomes and thus lead to production of wheat haploid plant. The purpose of this study was to develop an efficient method of haploid production via maize pollination in short dur...

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