نتایج جستجو برای: a crop management practices

تعداد نتایج: 13709010  

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
فاطمه رزاقی دانشجوی دکتری دانشکدة اقتصاد و توسعة کشاورزی، دانشگاه تهران احمد رضوانفر استاد دانشکدة اقتصاد و توسعة کشاورزی، دانشگاه تهران حسین شعبانعلی فمی استاد دانشکدة اقتصاد و توسعة کشاورزی، دانشگاه تهران ابوطالب حسین پور استادیار دانشگاه علوم کشاورزی و منابع طبیعی مازندران

the aim of this study was to comparable application cultural, biological and chemical control methods of pests, diseases and weeds in rice among paddy farmers in sari county. a sample of 260 farmers was selected by using proportional random sampling method. data were collected by means of a questionnaire. validity of questionnaire was confirmed by agricultural jihad experts of sari county and s...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2012
pawan singh bhandari

the study was conducted among the two farmer groups in bhaktapur and kavre districts of nepal. the main objective of the study is to evaluate the differences in belief, attitude and practices felt by the farmers after participation in the ipm ffs. the study has been based on data collected through personal interview with the farmers, focus group discussion, personal observation in the farmers f...

Journal: :Plant physiology 1975
T R Sinclair G E Bingham E R Lemon L H Allen

Theoretical analysis of the CO(2) assimilation and water loss by single leaves suggests that the water use efficiency of C(4) species decreases as stomatal resistance increases. To confirm this hypothesis for a complete maize crop, results from computer simulations and a field experiment were compiled for varying stomatal resistances. A soil-plant-atmosphere model allowed simulations of the man...

Journal: :International Journal of Current Microbiology and Applied Sciences 2020

Journal: :international journal of industrial engineering and productional research- 0
hadi teimouri university of isfahan kouroush jenab embry-riddle aeronatical university sam khoury athens state university

the main objective of the present survey is to conduct a comparative analysis of the challenges of the performance evaluation system in two private and public sectors and their impact on effectiveness of human resources management practices. this survey was conducted using the field-descriptive method. the historical study method was used to collect theoretical subjects and the field study meth...

2017
Kirsten A. Pearsons John F. Tooker

The challenge of managing agroecosystems on a landscape scale and the novel structure of soil communities in agroecosystems both provide reason to focus on in-field management practices, including cover crop adoption, reduced tillage, and judicial pesticide use, to promote soil community diversity. Belowground and epigeal arthropods, especially exotic generalist predators, play a significant ro...

1999
Janet Carpenter Leonard Gianessi

Soybean growers have adopted herbicide tolerant varieties at a rapid rate. While some potential cost savings may have driven adoption, the primary reason growers are switching to new programs is the simplicity and flexibility of a weed control program that relies on one herbicide to control a broad spectrum of weeds without crop injury or crop rotation restrictions. Roundup Ready weed control p...

The purpose of this paper is to investigate the effect of the interactive and diagnostic use of management control systems on the adoption and success of contemporary management accounting practices in the public sector. Contemporary management accounting practices includes: benchmarking, activity-based costing, the balanced scorecard, value chain analysis, total quality management, key perform...

2012
Eva L. M. Figuerola Leandro D. Guerrero Silvina M. Rosa Leandro Simonetti Matías E. Duval Juan A. Galantini José C. Bedano Luis G. Wall Leonardo Erijman

The rise in the world demand for food poses a challenge to our ability to sustain soil fertility and sustainability. The increasing use of no-till agriculture, adopted in many areas of the world as an alternative to conventional farming, may contribute to reduce the erosion of soils and the increase in the soil carbon pool. However, the advantages of no-till agriculture are jeopardized when its...

2002
R. L. Baumhardt

Dryland wheat (Triticum aestivum L.) and grain sorghum (Sorghum bicolor (L.) Moench) are often grown using a wheat–sorghum-fallow (WSF) crop rotation on the semiarid North American Great Plains. Precipitation stored during fallow as soil water is crucial to the success of the WSF rotation. Stubble mulch-tillage (SM) and no-tillage (NT) residue management practices reduce evaporation, but the sp...

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