نتایج جستجو برای: keywordsagricultural water managementdeficit irrigationgenetic algorithmsoptimal cropping pattern

تعداد نتایج: 893016  

2011
Athanasios Ragkos Alexandros Theodoridis

The multifunctional farm sector in Cyprus poses threats on the island’s water resources, but also highly contributes to preserving the cultural identity, incomes and employment in rural areas. This paper presents an application of the Choice Experiment method, in order to evaluate these features of Cypriot agriculture, which are externalities, as farmers are not remunerated in markets for such ...

2006
M. Liebig L. Carpenter-Boggs N. Barbour

Soil biological quality can affect key soil functions that support food production and environmental quality. The objective of this study was to determine the effects of management and time on soil biological quality in contrasting dryland cropping systems at eight locations in the North American Great Plains. Alternative (ALT) cropping systems were characterized by greater cropping intensity (...

Journal: :The Science of the total environment 2017
Sabine-Karen Lammoglia David Makowski Julien Moeys Eric Justes Enrique Barriuso Laure Mamy

STICS-MACRO is a process-based model simulating the fate of pesticides in the soil-plant system as a function of agricultural practices and pedoclimatic conditions. The objective of this work was to evaluate the influence of crop management practices on water and pesticide flows in contrasted environmental conditions. We used the Morris screening sensitivity analysis method to identify the most...

شریعتمداری, حسین, یوسفی, معصومه , حاج عباسی, محمد علی ,

  Adopting proper agricultural management and conserving soil organic matter are important components of sustainable agriculture. Soil organic matter content is a key attribute in soil quality. Labile organic matter pools can be considered as suitable indicators of soil quality that are very sensitive to changes in soil management practices. This research was carried out to investigate some org...

Journal: :علوم گیاهان زراعی ایران 0
خلیل جمشیدی دانشکده کشاورزی دانشگاه زنجان، استادیار داریوش مظاهری پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استاد ناصر مجنون حسینی پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استاد حمید رحیمیان مشهدی پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استاد سید علی پیغمبری پردیس کشاورزی و منابع طبیعی دانشگاه تهران، دانشیار

in order to study the weeds frequency and dry matter in corn and cowpea sole cropping and intercropping systems, an experiment using replacement and additive techniques was conducted using different combination of intercropping in seven levels with ratio of 1:1 (50% corn + 50% cowpea), 1:2 (33% + 67%), 2:1 (67% + 33%), (100% + 20%), (100% + 10%), 100% corn and 100% cowpea, two levels optimal an...

عباسی سورکی, علی, فلاح, سیف اله, کاکولوند،, راضیه,

Conservatiion with respect to physiological aspects of crops is a crucial factor for ideal photosynthesis and appropriate yield in arid and semi-arid agro-ecosystems. In order to investigate the effect of planting pattern on stability of physiological parameters of fenugreek and black cumin under drought stress, an experiment was conducted in the University of Shahrekord in 2014. Three drought ...

2016
Aaron Lee Daigh Thomas Sauer Matthew Helmers Richard Cruse Michael Castellano

Bioenergy cropping systems have been proposed as a way to enhance United States energy security. However, research on soil physical properties, soil-surface CO2 effluxes, and soil drainage dynamics in such systems is needed to ensure environmental sustainability in the field. The objective of our research was to evaluate soil physical properties and conditions as well as soil-surface CO2 efflux...

2016
Raghupathi Matheyarasu Nanthi S. Bolan Ravi Naidu

This study evaluated the effects of abattoir wastewater irrigation on plant growth and development. The soils used in this study were collected from Primo Smallgoods Abattoir (Port Wakefield, South Australia) at different sites such as currently irrigated (CI), currently not irrigated (CNI) and soil outside the irrigation area as control (CTRL). A completely randomised block design was employed...

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