Reduced and modified tillage (RT) systems (e.g. no-, zone-, strip) represent strategies to reduce soil degradation and erosion and protect water quality. We have shown that zone and deep zone tillage systems can provide the environmental and economic benefits of an RT system for many vegetable crops without the harvest delays or losses observed in straight no-till. Each season, more vegetable g...

this study carried out to evaluate the effect of different tillage systems on rapeseed yield (hayola 401) planted in corn residues. this experiment was done in moghan region with clay soils during 2009-2012. different seedbed preparation methods include mt: moldboard + disk tillage (conventional tillage was included), sct: stem crusher + chisel + disk tandem harrow, stt: stem crusher + double-d...

of Research Findings Soil quality parameters were assessed at several long-term dryland cropping systems research sites in eastern Washington to further define management practices that are soil building rather than degrading. The objective was to characterize soil quality changes over time as affected by no-till versus traditional tillage-based management systems. Soil organic carbon slowly in...

structure of air-dry soils, pedality refers to dry aggregates. Dry aggregation is an important phase of structure Soil structural stability often decreases as the intensity of cultivation genesis in arid and semiarid soils, where it is transient, increases. The effect of three different management systems (grass, no-till, and till) on soil aggregate stability and sizes were studied in formed on...

Principal component analysis is a valid method used for data compression and information extraction in a given set of experiments. It is a well-known classical data analysis technique. There are a number of algorithms for solving the problems, some scaling better than others. Wheat ranks as the staple food of most of the nations as well as an agent of poverty reduction, food security and world ...

seed germination, is a new alternative to no-till in areas where poorly drained soils are dominant. Where soil moisture conditions are suitable, strip-tillage creates narrow-width tilled strips, traditionally in the fall, to increase early spring soil evaporation and soil temperature in the top 2 inches. This is particularly effective in poorly drained wet soils, where slightly raised soil stri...

This study addresses the tillage effect on the distribution of bacterial biomass and their community structure in a subtropical purple rice soil ecosystem. Similar distribution patterns of soil bacterial biomass within water-stable aggregates (WSA) were observed under different tillage managements. Although the distribution pattern of soil microbial biomass was not changed by tillage practice, ...

Understanding how conservation agricultural management improves soil nitrogen (N) stability in the face of climate change can help increase agroecosystem productivity and mitigate runoff, leaching downstream water quality issues. We conducted a 2-year field study 36-year-old rain-fed cotton production system to evaluate impacts changing climatic factors (temperature precipitation) on N under ma...

Lack of information about the spatial variability of soil C in different management systems limits accurate extrapolation of C sequestration findings to large scales. The objectives of this study were to: (i) describe and quantify variability of total C in three management systems, chisel-plow (CT) and no-till (NT) with conventional chemical inputs and a chisel-plow organic management practice ...

J. Nat. Resour. Life Sci. Educ. 39:125–131 (2010). doi:10.4195/jnrlse.2009.0021 • http://www.JNRLSE.org © American Society of Agronomy 5585 Guilford Road, Madison, WI 53711 USA ABSTRACT Opportunities for farmers to participate in greenhouse gas (GHG) credit markets require that growers, students, extension educators, offset aggregators, and other stakeholders understand the impact of agricultur...