نتایج جستجو برای: subsoiling
تعداد نتایج: 155 فیلتر نتایج به سال:
Tillage management is a direct factor in affecting soil quality, which key sustainable agriculture. However quality evaluation needs significant manpower, material resources and time. To explore the sensitive indicators of affected by tillage management, eight physical chemical properties under three managements, including plow tillage, subsoiling rotary were determined long-term experiment Nor...
Appropriate tillage plays an important role in mitigating the emissions of greenhouse gases (GHG) in regions with higher crop yields, but the emission situations of some reduced tillage systems such as subsoiling, harrow tillage and rotary tillage are not comprehensively studied. The objective of this study was to evaluate the emission characteristics of GHG (CH4 and N2O) under four reduced til...
Water shortages and rainfall variability lead to a decrease in grain yield. Straw mulching (SM), subsoiling (S), combined amendments (subsoiling + straw mulching, SS) are potential solutions for maintaining crop productivity water resource sustainability. However, short- long-term applications of these methods appear result different yield use efficiency outcomes. In this study, we, therefore, ...
ern Tennessee (Stevens et al., 1992; Bradley, 1993; Triplett et al., 1996), conservation tillage practiced on silty clay Yield reductions from no-tillage cotton (Gossypium hirsutum L.) soils in northern Alabama resulted in 8 to 15% yield jeopardized adoption of conservation systems in the Tennessee Valley region of north Alabama in the early 1990s. We conducted a study from reductions compared ...
A portable tillage profiler (PTP) was constructed using a laser distance sensor, a linear actuator, a portable PC, and a lightweight aluminum frame that can quickly and accurately measure aboveground and belowground soil disruption caused by tillage. A laboratory experiment was conducted that determined that soil color did not detrimentally affect the PTP, with expected vertical errors of 2.3 m...
Subsoiling (SS) is an important technology in conservation tillage, but soil-disturbance characteristics the SS are rarely described. Research on during conducive to design and optimization of subsoilers, which provides a basis for reducing draft force energy consumption. This study conducted experiments at five different tillage depths field with specific situ test-rig facility, videotaping wa...
Abstract Eucalyptus harvesting, forwarding and soil tillage operations are among the main causes for compaction of forest soils, with potential impacts on productivity. This concern is especially important in areas soils that naturally compacted (fragipans duripans). In these include use subsoilers can reach depths more than one meter require heavy tractors exert high pressure soil. One ways to...
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