نتایج جستجو برای: labor and fertilizer

تعداد نتایج: 16838882  

1996
Russell L. Lamb

I develop a two-period stochastic dynamic programming model to explain the interaction between fertilizer use and off-farm labor supply. I use a well-known sample of farmers in the semi-arid tropics of India to test the model. I find that fertilizer use responds strongly to wages in the village labor market and that irrigation raises fertilizer use, while larger farmers use less fertilizer than...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم تربیتی و روانشناسی 1388

on- the-job training on of the most effective tools for managers to cope with the changing organizational environment. it grantess suitable services to customers, particularly in public service enterprises. if such training os goal oriented, planned systematically, and tailored to the employees, job content, then not only it could increase employees and organizational performance, but also it c...

2013
Mengistu Ketema Siegfried Bauer Justus Liebig

Despite the fact that erosion undermines productivity in the Ethiopian highlands, adoption of fertility enhancing techniques remained very minimal. The objectives of this study is to examine factors affecting adoption of fertilize and manure use and their interrelationships using plot and household level data collected from 211 farm households. A two-stage probit model results revealed a negati...

2000
Cheryl R. Doss

.................................................................................................................... iv Acknowledgments ...................................................................................................... iv Introduction ............................................................................................................... 1 Labor .........................

Journal: :اقتصاد و توسعه کشاورزی 0
معصومه رشیدقلم قادر دشتی زهرا رسولی فرید امینیان

implementation of effective input policies and technology consistent with production structure contributes to the economic use of the production. understanding the price elasticity of input and relationship between inputs in the agricultural sector is helpful in choosing appropriate input policy. in this study we examine the production structure of pistachio in damghan. to achieve the goal, tra...

Journal: :چغندرقند 0
حمید محمدی اعضا هیئت علمی دانشگاه آزاد اسلامی واحد جهرم

the main objective of this study was to determine the economical level of inputs applied in production of sugar beet by eglid region farmers. therefore data set was obtained from 55 farmers through interview and completing questionnaire. the farmers were selected based on a two-stage random sampling method.  marginal productivity of inputs was studied using cobb –douglasand transendental produc...

2015
John W. McArthur Gordon C. McCord

This paper uses cross-country panel data to estimate the agronomic inputs that lead to cereal yield improvements and the consequences for countries' processes of structural change. The results suggest a clear role for fertilizer, modern seeds and water in boosting yields. It then estimates empirical links in developing economies between increased agricultural yields and economic growth; in part...

H. Salehi

 Contribution change of factor costs analysis may help managers in decision making and in adjusting to changes. Over the last two decades, production and enhancement of kutum fingerlings have increased in Iran, reaching to more than 229 million fingerlings by 2005, but declined to 187 million from 2005 to 2008. Over the years 2002-2006, a study of fingerling production costs for kutum fish was ...

2017
John W. McArthur Gordon C. McCord

This paper estimates the role of agronomic inputs in cereal yield improvements and the consequences for countries' processes of structural change. The results suggest a clear role for fertilizer, modern seeds and water in boosting yields. We then test for respective empirical links between agricultural yields and economic growth, labor share in agriculture and non-agricultural value added per w...

 Contribution change of factor costs analysis may help managers in decision making and in adjusting to changes. Over the last two decades, production and enhancement of kutum fingerlings have increased in Iran, reaching to more than 229 million fingerlings by 2005, but declined to 187 million from 2005 to 2008. Over the years 2002-2006, a study of fingerling production costs for kutum fish was ...

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