نتایج جستجو برای: moldboard plow system for tillage operation on paddies for this purpose
تعداد نتایج: 14710839 فیلتر نتایج به سال:
Soil organic carbon (SOC) and nitrogen (N) are directly influenced by tillage, residue return and N fertilization management practices. Soil samples for SOC and N analyses, obtained from a 23-year field experiment, provided an assessment of nearequilibrium SOC and N conditions. Crops included corn (Zea mays L.) and soybean [Glycine max L. (Merrill)]. Treatments of conventional and conservation ...
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
Wear is the most important problem of moldboard plowshares. Because of cutting the soil, intensity of wear at the front portion of share is large and the effect of its wear on plow performance is considerable. In this research wear of the front portion of moldboard plowshares with respect to distance worked was studied. Wear of cylindrical specimens which were attached to the front portion of ...
Wear is the most important problem of moldboard plowshares. Because of cutting the soil, intensity of wear at the front portion of share is large and the effect of its wear on plow performance is considerable. In this research wear of the front portion of moldboard plowshares with respect to distance worked was studied. Wear of cylindrical specimens which were attached to the front portion of ...
Methods of seedbed preparation affect establishment, growth and yield of crops via manipulating physical and chemical properties of soil. These effects on wheat-mungbean double-cropping have not been studied in Isfahan. Therefore, the influences of various seedbed preparation methods on soil physical properties and nutrients content and on establishment of mungbean (experimental line 1-61-16) w...
by concerns about nutrient loading. Increased on-site nutrient loading from concentrated animal feeding opApplying organic matter (OM) amendments to cropland reduces erations (CAFOs) have prompted investigations into requirements for synthetic fertilizer and may eliminate yield differalternative uses for manure produced in various liveences between conventional and minimum tillage. The objectiv...
in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...
Tillage is one of the important managing factors that can destroy or improve soil structure. Soil structure is affected by the machines and shape of the wheels. Field experiments were conducted at Hamadan Agricultural Research Station on a coarse loamy mixed mesic Calcixerolic Xerocrepts soil to measure and evaluate the effects of tillage and wheel-induced compaction on selected soil physical...
abstract this study attempted to investigate the strategies used to translate clichés of emotions in dubbed movies in iranian dubbing context for home video companies. the corpus of the current study was parallel and comparable in nature, consisting of five original american movies and their dubbed versions in persian, and five original persian movies which served as a touchstone for judging n...
applying a suitable tillage method is vital to chickpea production in dryland conditions. hence, eight tillage methods were studied using strip plots in a randomized complete block design with three replications over three years at the dryland agricultural research institute in maragheh, iran. the amount of rainfall in the three years of the study were 202, 264 and 203 mm, respectively, which w...
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