نتایج جستجو برای: plowing and planting management

تعداد نتایج: 16979417  

Journal: :پژوهش های زراعی ایران 0
عبدالهی عبدالهی غدیری غدیری بحرانی بحرانی

abstract conservation tillage practices integrated with appropriate residue management is an efficient approach in sustainable agriculture to prevent the removal or burning of crop residues. two years field experiments were conducted to evaluate the effect of wheat residue management on yield, yield component and morphophysiological characteristics of corn. experimental design was split plot us...

The present study investigated factors affecting risk management by women rice farmers in the township of Sari in Iran. The statistical population comprised 1677 women who cultivate rice in Sari; 248 women were selected for the study using stratified random sampling. The data was analyzed using descriptive and inferential statistics with SPSSWin16 software. The Chronbach’s alpha was 0.84 and th...

Journal: :پژوهش های خاک 0
علی عطایی دانشجوی دکتری دانشگاه تبریز منوچهر گرجی دانشیار گروه علوم خاک دانشگاه تهران یحیی پرویزی استادیار مرکز تحقیقات کشاورزی کرمانشاه

a major concern of farmers is deterioration of the soil and water resources. soil management is the most direct way for mankind to interfere with natural processes that may either intensify or hinder soil degradation. fractal geometry has been widely used to describe heterogeneity in a wide range of natural processes, including physical systems of soil. in this study, the effects of different m...

Journal: :Journal of economic entomology 2016
Anthony J McMechan Gary L Hein

Wheat is an important food grain worldwide, and it is the primary dryland crop in the western Great Plains. A complex of three viruses (Wheat streak mosaic, Wheat mosaic, and Triticum mosaic viruses) is a common cause of loss in winter wheat production in the Great Plains. All these viruses are transmitted by the wheat curl mite (Aceria tosichella Keifer). Once these viruses are established, th...

Journal: :Mechanical Engineering 2009

2005

eld to prepare for planting, while the tractor and crew on the right are planting trees. This method provides a weed-free soil immediately after planting for preemergence herbicide applications. W eeds reduce the value of nursery crops. They compete with crops for nutrients, light, and water. Some vine weeds climb nursery crops, requiring excessive labor for hand removal. Most serious are peren...

2017
Nguyen V. Long Yared Assefa Rai Schwalbert Ignacio A. Ciampitti

For maize (Zea mays L.), early planting date could be of advantage to high yields but a review of planting date effect on high-yielding data is not yet available. Following this rationale, a synthesis-analysis was conducted from the farmer annual maize contest-winner data (n = 16171 data points; 2011-2016 period); cordially provided by the National Corn Growers Association and a scientific lite...

شاهرخ زند‌پارسا, , علیرضا سپاسخواه, , ابوالفضل مجنونی هریس, , علی‌اکبر کامگار حقیقی, ,

Agricultural investigations use computer models for simulation of crop growth and field water management. By using these models, the effects of plant growth parameters on crop yields are simulated, hence, the experimental costs are reduced. In this paper, the model of MSM (Maize Simulation Model) was calibrated and validated for the prediction of maize forage production at Agricultural College,...

Journal: :National Municipal Review 1920

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