نتایج جستجو برای: shank chisel plow working at 30 cm depth in sandy

تعداد نتایج: 17476177  

Journal: :E3S web of conferences 2023

The depth of tillage and its uniformity are the main performance indicators chisel cultivators, as well all machines. Only when these at level demand, favorable conditions created for uniform development ripening crops throughout field their high yield. article theoretically explores problem ensuring a smooth movement suspension cultivator along with working depth. results show that given requi...

Journal: :مهندسی بیوسیستم ایران 0
عباس عاطفی دانش آموخته کارشناسی ارشد، دانشکده کشاورزی؛ دانشگاه شیراز سیدحسین کارپرورفرد دانشیار، دانشکده کشاورزی، دانشگاه شیراز

one of the basic adjustments in application of agricultural implements, particularly tillage tools, is their work in a leveled state while in operation. throughout the ongoing research, and by application of electronic and hydraulic circuits, an intelligent system was designed, developed and evaluated. the device is expected to perform the plow longitudinal as well as lateral adjustments at the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...

2011
Gary E. Varvel Wallace Wilhelm

Emphasis and interest in carbon (C) and nitrogen (N) storage (sequestration) in soils has greatly increased in the last few years, especially C with its’ potential to help alleviate or offset some of the negative effects of the increase in greenhouse gases in the atmosphere. Several questions still exist with regard to what management practices optimize C storage in the soil profile. A long-ter...

Journal: :IOP conference series 2023

Abstract This article provides information on the results of scientific research aimed at maintaining and increasing soil fertility in country world today, as well ways to increase it, impact organic fertilizers fertility. The presents evidence-based data study effect soybean, mung bean oat sowing different with deep, medium shallow tillage after harvesting winter wheat conditions prone wind er...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1392

for any educational program to be successful, many factors work hand in hand. based on pervious efl studies, teachers and learners are the keys to gain achievement. granted the fact that explicit and implicit practice plays a key role in education, knowledge of it can help teachers facilitate students’ vocabulary learning. this study investigated to determine the contribution of explicit and i...

Journal: :Journal of environmental quality 2006
Upendra M Sainju Bharat P Singh Wayne F Whitehead Shirley Wang

Soil carbon (C) sequestration in tilled and nontilled areas can be influenced by crop management practices due to differences in plant C inputs and their rate of mineralization. We examined the influence of four cover crops {legume [hairy vetch (Vicia villosa Roth)], nonlegume [rye (Secale cereale L.)], biculture of legume and nonlegume (vetch and rye), and no cover crops (or winter weeds)} and...

Journal: :Tarim Bilimleri Dergisi-journal of Agricultural Sciences 2021

Tillage is one of the most important practices affecting soil physical and hydraulic properties. Its effects may vary intensely according to tillage method. This study aims evaluate different methods (moldboard plow+disk harrow, moldboard plow+rotary tiller chisel harrow) drainage (subsurface non-drainage) on properties in a clay loam soil. The experiment was conducted split-plot time statistic...

R. Jafari T. TavakoliHashjin

ABSTRACT-This paper aims to develop a new design of a bentleg (BL) plow and to determine its performance as compared to the conventional one using finite element approach. The difference between the modified and conventional BL plows is the direction of angle between the projection of cutting blade on horizontal plane normal to plow shank and the line perpendicular to the plow shank in the same...

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