نتایج جستجو برای: cropping plan

تعداد نتایج: 110644  

2009
Raj Man Shrestha

Due to expansion of urbanization, introduction of advanced technology in the agriculture systems and low returns in traditional farming systems, farmers of the Central Development Region of Nepal were compelled to change the traditional farming systems to modern systems. The present study aims to find out the factors that affected the changes in cropping patterns in hills and plains of this reg...

2010
Verónica Acosta-Martínez Scot E. Dowd Colin W. Bell Robert Lascano Jill D. Booker Ted M. Zobeck Dan R. Upchurch Marsha Sharp

This study evaluated microbial communities of soil (0–10 cm) as affected by dryland cropping systems under different tillage practices after 5 years. The soil type was an Olton sandy loam with an average of 16.4% clay, 67.6% sand and 0.65 g kg of organic matter (OM). The cropping systems evaluated were grain sorghum (Sorghum bicolor L.)— cotton (Gossypium hirsutum) (Srg-Ct), cotton-winter rye (...

2002

This publication is written for those looking for a way out of the high risk, long hours, low pay, poor prices, and dim future associated with conventional cash crop production. There are viable alternatives to continuing in the cash crop business for those who can adjust their thinking. Finding alternatives to commodity crop production is the focus of this publication. Certain principles provi...

2002
Ardell Halvorson Brian J. Wienhold Alfred L. Black Ardell D. Halvorson

With increased cropping intensity, one would expect that more crop residue and C would be added to the Soil C sequestration can improve soil quality and reduce agriculsoil than with a crop-fallow system (Campbell et al., ture’s contribution to CO2 emissions. The long-term (12 yr) effects of tillage system and N fertilization on crop residue production and 1995, 2000b; Janzen et al., 1998a; Pete...

Journal: :اقتصاد و توسعه کشاورزی 0
صمد عرفانی فر منصور زیبایی مهدی کسرایی

in this study, the optimal cropping patterns based on individual aims are presented and followed by a multi-objective cropping pattern with emphasize on the use of conservation tillage methods in darab region presented. individual goals consisted of maximizing gross margin and food secin this study, the optimal cropping patterns based on individual aims were presented and followed by using a mu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم اجتماعی 1393

the present study is paid to the evaluation of the welfare program of the unemployment insurance in iran. the main purpose which was the main reason for performing this thesis, was the unemployment insurance plan’s challenges in iran such as financial problems of this plan, prolongation of the credit receipt for some insured people, unemployment slow exiting from the unemployment insurance fund...

2002
Freddie R. Lamm

The advantages and disadvantages of subsurface drip irrigation (SDI) as compared to alternative irrigation systems are conceptually discussed. Each category (advantages and disadvantages) is subdivided into three groups: 1) Water and soil issues; 2) Cropping and cultural practices, and 3) System infrastructure issues. The adaptation and adoption of SDI systems into diverse cropping systems, geo...

Journal: :The Journal of Wildlife Management 2013

2007
Fred Stentiford

Many images contain salient regions that are surrounded by too much uninteresting background material and are not as enlightening as a sensibly cropped version. The choice of the best picture window both at capture time and during subsequent processing is normally subjective and a wholly manual task. This paper proposes a method of automatically cropping visual material based upon a new measure...

شیری, محمدرضا,

This study was conducted to estimate stability of yield in forage sorghum varieties for identifying varieties with combine stability and high yield potential across two cropping conditions. Thus, seven forage sorghum varieties were evaluated for three years under two cropping conditions including spring (E1) and summer (E2) cropping, using a randomized complete block design with four replicatio...

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