The paper proposes a new method for multistage plowing that implies loosening bottom soil and subsoil horizon simultaneously, followed by overturning the without cutting, which improves quality of cultivation, softens plow sole reduces energy costs. Experimental studies confirmed theoretical relationship determining resistance, both certain working bodies section, whole plow. proposed provides ...

Soil N2O emissions from three corn (Zea mays L.)-soybean [Glycine max (L.) Merr.] systems in central Iowa were measured from the spring of 2003 through February 2005. The three managements systems evaluated were full-width tillage (fall chisel plow, spring disk), no-till, and no-till with a rye (Secale cereale L. 'Rymin') winter cover crop. Four replicate plots of each treatment were establishe...

The purpose is to investigate substantiate relative position working bodies of improved plow-ripper. Scheme the plow-ripper given. consists left and right sections, a ripping share established down axle symmetry tool, with inclined racks. Analytics dependencies are mined define distance between organs them along Experiments have been carried out come true relation stance bodywork. that an incre...

reproductive age.3 However, other empirical evidence has indicated that state abortion restrictions have no such impact.4 The relationship between state-level abortion policies and birthrates is even murkier. Since the birthrate is the product of the pregnancy rate and the ratio of births to pregnancies, state abortion policies may affect birthrates by influencing one or both of these factors. ...

the purpose of this research was to study and predict fuel consumption rate of tractor due to different aspect ratios of chisel plow blade and to determine a general relationship equation between aspect ratio ( ) and fuel consumption rate.  an itm-399 (81 kw) tractor and a mounted-type chisel plow with 9 shanks were used. the 5 and 10 cm width chisel blades were used. the experiments were condu...

This work aims to substantiate the effectiveness of use an active working body on a front plow. The necessity using bodies is justified, and plow with passive proposed. efficiency installing analyzed. forces acting combined frontal are considered. analysis influence stability movement traction resistance carried out. results experimental studies presented. increases degree soil crumbling by 8,5...

Soil loss through wind and water erosion is an ongoing problem in semiarid regions. A thin layer of top soil loss over a hectare of cropland could be corresponding to tons of productive soil loss per hectare. The objectives of this study were to evaluate the influence of beef feedlot manure, tillage and legume grass mixtures on changes in soil quality and nutrient components. The study was init...

BACKGROUND The temporal sensitivity of the surveillance system (TemSSe) for Bovine Viral Diarrhea (BVD) in Danish dairy herds was evaluated. Currently, the Danish antibody blocking ELISA is used to test quarterly bulk tank milk (BTM). To optimize the surveillance system as an early warning system, we considered the possibility of using the SVANOVIR ELISA, as this test has been shown to detect B...

The article is devoted to determining the effect of mineral and microbiological fertilizers on grain yield spring durum wheat (variety Luch 25) cellulose-decomposing ability soil during moldboard minimal tillage. It concluded that provide maximum efficiency, which in turn contributes an increase crop yields.