نتایج جستجو برای: stubble surface
تعداد نتایج: 635822 فیلتر نتایج به سال:
In the scene of paddy field rotary tillage, a real-time detection method tillage condition based on machine vision is proposed, and quality evaluated by index residual stubble. The root stubble selected as research object, standard deviation Y component in YCrCb space proposed to determine soil after which divided into three levels: less stubble, medium more Finally, accuracy algorithm verified...
Effects of P and S on growth and regrowth were assessed in a greenhouse trial in which Clitoria was grown through three cuttings on a deficient soil with a factorial combination of 4 levels of P and 3 levels of S. Phosphorus deficiency caused stunting, flowering delay, and a rusty appearance of leaflets. Sulfur deficiency caused stunting and chlorosis. With successive cuttings, P deficiency bec...
In the paper, the necessity of root stubble harvesting and recycling was put forward from the perspective of biomass energy utilization. To accomplish mechanized harvesting on root stubble, a rotary digging machine was designed based on parametric modeling software Solidworks. Firstly, parts were built under entity modeling module, and then assembled to 4 main mechanisms in assembling environme...
Twenty-eight Comisana dry ewes were utilised to evaluate the effect of shearing (14 shorn and 14 unshorn ewes) and supplemental level (100 and 300g of concentrate) on intake of barley stubble. Shorn ewes showed a small increase in dry matter intake (at the end of August: 1.32 vs. 1.10kg/day; p<0.01). Intake of barley stubble decreased as supplement level increased (mean: 1.18 vs. 1.29; p<0.01)....
The traditional agricultural machine design were represented as 2D drawing, which is difficult to modify, and also not intuitive in the solid way for the form and structure. Therefore, software, UG-NX3, was used to conduct parameterized design of stubble cleaner parts. The parts were designed associatively and assembled virtually. The structure of the whole machine and the spatial distribution ...
Signaling between cells in the anterior (A) and posterior (P) compartments directs Drosophila wing disc development and is dependent on expression of the homeodomain transcription factor Engrailed (En) in P cells. Downstream of en, posteriorly expressed Hedgehog (Hh) protein signals across the A/P border to establish a developmental organizer that directs pattern formation and growth throughout...
Conservation practices that involve leaving mulch on the soil are known to increase fertility. However, is an important source of feed for ruminant livestock. Accordingly, trade-offs between mulching and stubble uptake by livestock currently hot topics in research field. In this study, a comparison quality stubbles wheat grown no-tillage conventional tillage fields rumen fermentation characteri...
This study investigated the effect of rate and type of organic matter, and consecutive application of sodium on secondary particle size distribution. At first, a cropland soil was treated with two organic matter (manure and straw stubble) at different rates of 0%, 1% and 5%, with three types replicates during 4 months. Subsequently, four levels of SAR (0, 1, 10 and 30) were added to the pretrea...
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