The field experiment were performed on the site of Werer Agricultural Research Center (Ethiopia)  to study optimal irrigation scenario by taking in account leaching requirement and drainable excess water for three successive years. Six treatments evaluated at different growth stages onion plant namely initial stage four event  23 mm (T1), 16.2 (T2) 21.0 (T3), 13.8 (T4), 27.0 (T5), 19....

This paper presents a linear programming (LP) methodology for estimating the cost of reducing a state's coal-fired power plant carbon dioxide emissions by cofiring switchgrass and coal. LP modeling allows interplay between regionally specific switchgrass production forecasts, coal plant locations, and individual coal plant historic performance data to determine an allocation of switchgrass mini...

In the Kingdom of Saudi Arabia (KSA), millions of Muslims come to perform Pilgrimage every year. Around one million ton of municipal solid waste (MSW) is generated in Makkah city annually. The collected MSW is disposed of in the landfills without any treatment or energy recovery. As a result, greenhouse gas (GHG) emissions and contamination of the soil and water bodies along with leachate and o...

in recent years, surplus usage of chemical fertilizers and inattention the importance organic matter to improve soil fertility, leading to increasing use of chemical fertilizer, environmental pollution and etc. in order to study the different fertilizer levels (organic, chemical and combined) on yield of grain corn (s.c.704) experiment was conducted at the research farm faculty of agriculture t...

Rele v ance. Onions in Russia 2021: Cultivation area – 56.3 thousand hectares; Productivity 28.6 t/ha; Production 1608.6 tons; Import from the volume of consumption 10.7%. Modern varieties and hybrids plant protection products make it possible to obtain high yields conditions Non-chernozem zone. The aim research is optimize parameters terms technological operations for cultivation onion an annu...