Tillage intensity may differently impact gaseous losses of C and N to the atmosphere, but data from long-term experiments are relatively few. Yet, this information is needed better understand gains in agricultural systems. The objective study was determine how tillage affects soil greenhouse gas (GHG) fluxes (CO 2 , O, CH 4 ) by comparing experimental moldboard plow (MP), chisel (CP), double di...

Water extractable organic matter (WEOM) is critical for soil fertility because of its role as a readily available C substrate microbial metabolism. In the semi-arid Texas High Plains, dryland cropping systems are common limited precipitation and irrigation water. Little known about long-term effects on WEOM content composition, how these differ from native grassland. The objective this study wa...

During the last decade in Mexico, profitability of basic grain crops has decreased considerably due to low productivity caused by unfavorable soil and climatic conditions, which are aggravated climate change. In addition, variability international economic environment rise fertilizer fuel prices factors that seriously affect production these food products. this context, it is important generate...

To improve the quality and energy indicators on front plow in of housings, angle axes are installed form a triangular wedge. The purpose study is to substantiate parameters angle-lift plow, which provides high-quality performance technological process according agrotechnical requirements with lowest costs for smooth, rowless plowing. research uses laws rules theoretical mechanics, mathematical ...

Soil organic matter (SOM) is essential for sustaining soil health and crop productivity. However, changes in SOM stocks in response to agronomic practices are slow and show years later when it is too late for adjustments in management. Identifying early indicators of SOM dynamics will allow early management decisions and quick remedial action. The objectives of this study were to evaluate long-...

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...

Crop management practices (tillage, residue management, fertilization, etc.) define the soil environment to which crops are exposed and through these environmental conditions control crop growth. The purpose of this paper is to report the response of winter wheat (Triticum aestivum L.) to long-term (10 years) application of fallow tillage practices (plow, sub-till, and no-till) and N fertilizat...

This study investigates percolation and seepage through the bunds of flat and terraced paddies. Field experiments were conducted in Hsin-Pu of Hsin-Chu County, Taiwan, to measure the soil water content of various types of bund. Measurements revealed that the soil was unsaturated along the sloped surface of the terrace. Experimental results also indicated that seepage face flow did not develop e...