نتایج جستجو برای: cropping system

تعداد نتایج: 2237513  

Journal: :Journal of Agriculture and Environment 2007

Journal: :علوم گیاهان زراعی ایران 0
پرستو مرادی دانشجوی دکتری، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان جعفر اصغری استاد، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان غلامرضا محسن آبادی استادیار، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان حبیب الله سمیع زاده دانشیار گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان

to study the response of pinto-bean yield and yield components in intercropping with maize and naked-pumpkin under weed competition, two similar experiments were conducted in rasht and roudsar separately each in a randomized complete block design with 3 replications on factorial arrangements experiment in 2013. the treatments of first factor consisted of  pinto bean (100 and 75%) sole cropping,...

2002
Brian J. Wienhold

Nitrogen-mineralization rates are needed to accurately determine N fertilization requirements to meet plant needs while minimizing environmental contamination. A spring wheat (Triticum aestivum L.)-fallow (SW-F) system was compared with a spring wheat-winter wheat-sunflower (Helianthus annuus L.) (SW-WW-SF) system on a Temvik-Wilton silt loam (finc-silty, mixed Tj pic and Pachic Haploborolls) a...

Journal: :بوم شناسی کشاورزی 0
محمد رضا چائی چی رضا کشاورز افشار سعید قنبرزاده

agroforestry is one the aspects of sustainable agriculture in which multiple cropping of perennial trees in mixture with crops guarantees the environmental, economical and social sustainability in rural communities. high demands for forage in northern provinces of iran lead to agroforestry in citrus orchards as a potential mean for forage production through agroforestry systems. this research w...

Journal: :Journal of environmental biology 2010
O P Shukla P K Singh P B Deshbhratar

Multiple cropping (i.e. intercropping or mixed cropping) plays an important role in agriculture because of the effective utilization of resources, significantly enhancing crop productivity compared with that of monocultured crops. The study was planed to assess the effect of various concentrations (00, 30, 60, 90 kg ha(-1)) of phosphorous on the biochemical composition of grains of Hordeum vulg...

2009
G. Subba Reddy V Maruthi

Rainfed agriculture occupies 68% of India’s cultivated area and supports 40% of the human and 60% of the livestock population. It produces 445 of the food requirement, thus has and will continue to play a critical role in India’s food security. However, aberrant behaviour of monsoon rainfall, eroded and degraded soils with multiple nutrient and water deficiencies, declining ground water table a...

2016
Hung-Chun Lin Yasuhiro Fukushima

Options to tackle the sustainability challenges faced in the production of rice, including global and local environmental perspectives, need to be discussed. Here, the global warming potential, water consumption and cumulative energy demand were analyzed using a life-cycle assessment to highlight the sustainability aspects of rice production in Taiwan, where a mixed organic and conventional ric...

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...

2015
Chengdong Huang Quanqing Liu Nico Heerink TjeerdJan Stomph Baoshen Li Ruili Liu Hongyan Zhang Chong Wang Xiaolin Li Chaochun Zhang Wopke van der Werf Fusuo Zhang Wujun Ma

Double cropping of wheat and maize is common on the North China Plain, but it provides limited income to rural households due to the small farm sizes in the region. Local farmers in Quzhou County have therefore innovated their production system by integration of watermelon as a companion cash crop into the system. We examine the economic performance and sustainability of this novel intercroppin...

2016
Lawrence G. Oates David S. Duncan Gregg R. Sanford Chao Liang Randall D. Jackson

The choice of crops and their management can strongly influence soil microbial communities and their processes. We used lipid biomarker profiling to characterize how soil microbial composition of five potential bioenergy cropping systems diverged from a common baseline five years after they were established. The cropping systems we studied included an annual system (continuous no-till corn) and...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید