نتایج جستجو برای: harvesting combine

تعداد نتایج: 86503  

2009
E MEYER GW MAHER

Abstract A desk top analysis was conducted to assess the feasibility and economics of introducing a fully mechanised combine harvesting system on several farms of a miller cum planter estate located in the KwaZulu Natal Midlands of South Africa. Machinery and equipment costing exercises based on row length, haul-out distance and harvester forward speeds were investigated. The outcome of the stu...

Journal: :Applied and environmental microbiology 1984
B Lighthart

From plate counts of the airborne microorganisms in the downwind dust plume of operating grass-seed combines, the mean source concentrations were calculated to be 6.4 x 10 and 4.7 x 10/m, respectively, potentially accounting for at least 41.9% of the bacteria and 35.1% of the fungi in the airshed in the Willamette Valley, Oregon.

Journal: :Journal of Soil Sciences and Agricultural Engineering 2010

Asadullah Mirasi, Ehsan Kamran Mohammad Amin Asoodar Mousarreza Samadi

Wheat is one of the most important food staff in consumption pattern of each country. More than 50 percent of energy is provided by bread in the developing countries. The aim of this study was measuring wheat losses during pre-harvest and harvest stages in Chaharmahal and Bakhtiari province of Iran in year 2013. Wheat losses at harvest stages were measured to wheat varieties in 2 levels of Omid...

Journal: :Japanese Journal of Farm Work Research 2022

水田転換畑での子実トウモロコシ生産への関心が高まる中で,汎用コンバイン用のコーンヘッダの販売が始まったことから,本報はコーンヘッダを利用した場合の収穫作業性能の解明を目的とした.研究所内の飼料作圃場で試験したコーンヘッダ装着時の収穫作業精度については,従来のリールヘッダに比べて脱穀選別損失のほか,損傷粒や夾雑物の割合に大きな違いは見られなかったものの,頭部損失は低く抑えられた.現地水田転換畑で調査したコーンヘッダ装着時の圃場作業量は,雑草の影響が無い作業条件では42–59 a h-1の範囲にあり,既報のリールヘッダ装着時に比べ1.2–1.6倍であった.こうしたコーンヘッダ利用による収穫作業性能の向上効果が得られる作業適期は,従来のリールヘッダで推奨される子実水分25%以下よりも高い30%以下であった.コーンヘッダの利用により5%ほど高い子実水分での収穫が可能になることで,栽培条件によ...

Journal: :E3S web of conferences 2021

In sunflower harvesting for decreasing the grain loss and increasing using efficiency of combines GIS technologies, namely equipped with GPS devices control sensors provides good results. This is explained that by fact a length 400-500 mm, cut baskets did not partially fall on divider-guide, 700-800 seed losses increased due to uncut baskets, since an increase in divider-guide bent some stems f...

Asadullah Mirasi, Ehsan Kamran Mohammad Amin Asoodar Mousarreza Samadi

Wheat is one of the important food staff in consumption pattern of each country. More than 50 % of human energy is supplied from bread in the developing country. Combine losses is less than 2-3% in developed countries, while in developing country is about 15-20% in different regions and circumstances of harvesting seasons and field conditions. In this research project that effect of combine typ...

Asadullah Mirasi, Ehsan Kamran Mohammad Amin Asoodar Mousarreza Samadi

Wheat is one of the important food staff in consumption pattern of each country. More than 50 % of human energy is supplied from bread in the developing country. Combine losses is less than 2-3% in developed countries, while in developing country is about 15-20% in different regions and circumstances of harvesting seasons and field conditions. In this research project that effect of combine typ...

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