نتایج جستجو برای: land equivalent ratio

تعداد نتایج: 743286  

Journal: :Agronomy 2023

Crop rotation and intercropping are important ways to increase agricultural resource utilization efficiency crop productivity. Alternate intercropping, or transposition is a new pattern in which two crops intercropped wide strip with planting positions switched annually on the same land. Transposition combines thus performs better than either practice alone. Compared traditional rotation, it ca...

Journal: :پژوهش های زراعی ایران 0
نگار ظریف پور محمد تقی ناصری پور یزدی مهدی نصیری محلاتی

in order to evaluate the effect of different intercropping arrangements of cumin and chickpea on seed yield and quality criteria of cumin an experiment was conducted in agricultural research station of ferdowsi university of mashhad in 2010 growing season. an experiment was conducted as split plot on the basis of complete randomized block design with three replicatons. the main plot included ar...

Journal: :international journal of civil engineering 0
m. biglari civil engineering department, school of engineering, razi university, kermanshah, iran, p. o. box: 67149-67346 i. ashayeri civil engineering department, school of engineering, razi university, kermanshah, iran, p. o. box: 67149-67346

seismic ground motion is profoundly affected by geometrical and mechanical properties of soil deposits overlaying bedrock. local seismic ground response of saturated soil deposits was studied in literature by applying the effects of soil stress state and index properties on the strain-dependent normalized shear modulus reduction, g/g0, and damping ratio, d, curves in an equivalent linear analys...

2012
John W. Recha Johannes Lehmann M. Todd Walter Alice Pell Louis Verchot Mark Johnson

Tropical Africa is affected by intense land-use change, particularly forest conversion to agricultural land. In this study, the stream discharge of four small headwater catchments located within an area of 6 km in western Kenya was examined for 2 years (2007 and 2008). The four catchments cover a degradation gradient ranging from intact forest to agricultural land under maize cultivation for 5,...

2012
Muyiwa Agunbiade

Overview The integration of land administration processes and the collaboration of land agencies are considered essential for the effective delivery of developable land for housing production. However, in most countries, housing and land management policies are usually split between multiple government agencies. The background literature suggests that the activities of governments’ agencies tha...

2012
Anil Rai

Systematic and comprehensive compilation of land use statistics is necessary for planned development of agriculture, forests, grasslands, rural settlements, urban spreads, industries and other land based programmes and activities. The need for optimizing land use in an integrated manner has become particularly relevant in recent years as a consequence of compelling and conflicting demands of gr...

2008
Kuno M. Strassmann

The impact of land use on the global carbon cycle and climate is assessed. The Bern carbon cycle-climate model was used with land use maps from HYDE3.0 for 1700 to 2000 A.D. and from post-SRES scenarios for this century. Cropland and pasture expansion each cause about half of the simulated net carbon emissions of 188 Gt C over the industrial period and 1.1 Gt C yr−1 in the 1990s, implying a res...

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