نتایج جستجو برای: dryland farming

تعداد نتایج: 27257  

Journal: :Journal of environmental quality 2008
Melissa Bridges W Brien Henry Dale L Shaner R Khosla Phil Westra Robin Reich

An area of interest in precision farming is variable-rate application of herbicides to optimize herbicide use efficiency and minimize negative off-site and non-target effects. Site-specific weed management based on field scale management zones derived from soil characteristics known to affect soil-applied herbicide efficacy could alleviate challenges posed by post-emergence precision weed manag...

2011
H. Shi

1 School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China. 2 The CAS/Shandong Provincial Key Laboratory of Coastal Environmental Process, Yantai Institute of Costal ZoneResearch, Chinese Academy of Sciences(CAS), Yantai 264003,China. 3 State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil ...

Journal: :Proceedings of the New Zealand Grassland Association 2008

Journal: :E3S web of conferences 2021

Dryland farming is still to be a main activity of the community around part Forest Area (Bagian Daerah Hutan/BDH), Panggang, Kesatuan Pengelolaan Hutan (KPH) Yogyakarta. This study aimed determine efficiency dryland and factors that influencefarming income. The survey method was used carry out data information by interview farmer. R/C analysis, labor productivity capital analysis were farming. ...

Journal: :Indonesian Bulletin of Animal and Veterinary Sciences 2019

2011
Philip Antwi-Agyei Evan D.G. Fraser Andrew J. Dougill Lindsay C. Stringer Elisabeth Simelton Kwame Nkrumah

This study evaluates new multi-scale, multi-indicator methods for assessing the vulnerability of crop production to drought at a national and regional scale by identifying differences across and within ten regions of Ghana, a country that faces many climate and crop production challenges typical of subSaharan Africa. We highlight key methodological steps required to improve drought sensitivity ...

احمد جلالیان, , حسین خادمی, , مریم یوسفی فرد, ,

Improper use of natural resources, especially soil, causes its degradation and severe soil erosion. Water erosion is an important factor causing soil degradation. Land use change of pasture would result in severe soil erosion mainly due to the reduction of vegetation cover and also surface soil disturbance. The objectives of this study were to estimate the amount of sediment, runoff and nutrien...

1996
Robert P. Adams

The potential of arid/semiarid land plants a s sources of commercial products is illustrated by the following examples: candelilla (wax); jojoba (oil, protein); Acacia spp. (gum); Astragalus spp. (tragacanth gum); guayule (rubber); rabbitbrush (rubber, chemicals); sunflowers (rubber, chemicals); yucca (soap); and cresote bush (antioxidants, phenolic resins). co-evolutionary selection is a cause...

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