نتایج جستجو برای: no tillage rice field
تعداد نتایج: 3927488 فیلتر نتایج به سال:
This research focused on rill formation, rill density, and associated flow velocity distribution in rills at the field level and with different tillage treatments in the inland Pacific Northwest. The study was conducted by applying flow at three different rates under winter conditions, which provides the greatest potential for rill formation. The following tillage treatments were tested: chisel...
Your tillage system is important to the long-term sustainability of the farm enterprise. Matching a crop tillage system that is suited to your farm resources can provide both economic and environmental benefits. It is important to evaluate your land and determine what options would be appropriate. Several questions have arisen regarding new approaches or options in tillage systems compared to a...
Soil C change and CO2 emission due to different tillage systems need to be evaluated to encourage the adoption of conservation practices to sustain soil productivity and protect the environment. We hypothesize that soil C storage and CO2 emission respond to conservation tillage differently from conventional tillage because of their differential effects on soil properties. This study was conduct...
1545 Soil Sci. Soc. Am. J. 73:1545-1558 doi:10.2136/sssaj2008.0311 Received 26 Sept. 2008. *Corresponding author ([email protected]). © Soil Science Society of America 677 S. Segoe Rd. Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any informatio...
The rice - maize cropping system is one of the predominant systems in Telangana state, which also produces large quantities residues, whose disposal a major problem. A quantity paddy straw burnt on farm to clear field for succeeding crop. On farm, significant amount burned prepare land subsequent Burning crop residue damages air and results loss biomass plant nutrients entire carbon. purpose st...
soil enzyme activities can be used as indicators of soil quality for assessing the sustainability of agricultural ecosystems. the objective of this study was to determine the effects of barley residue input rate, burning, urea fertilizer and tillage management on activities of alkaline phosphatase and urease under field conditions, after a period of 90 days. the experiment was carried out based...
Recent developments in biofuel demand and the rapid adoption of modern transgenic hybrids are changing production systems towards more corn after corn, more intensive tillage, higher plant populations, and ever higher crop residue levels at harvest. Meeting society’s needs for food, feed, and fuel from grain corn, and in the future from corn stover, requires continued refinement of tillage syst...
introduction phosphorus (p) is an essential element in crop nutrition, which can be growth limiting or an environmental contaminant, if present in excess. on the other hand, tillage practices have a direct effect on behavior and availability of soil p. since, application of different tillage methods lead to different patterns of soil phosphorus distribution, hence p fertilizer needs and p avail...
The purpose of this study was to determine the effect land preparation methods on soil infiltration which can be used as a basis for designing irrigation dryland rice cultivation. arranged in completely randomized design (CRD) with three treatments, namely T0 (no tillage), T1 (hoeing), and T2 (hoeing plus loosening). Each treatment carried out replication plots. Artificial rain given an average...
Kucey and Schaalje, 1986; Reeves et al., 1993; Randall et al., 1997; Torbert et al., 2001). Tillage and N management systems can have a significant effect Many soil and water quality problems are associated on N use by corn (Zea mays L.) and nitrate (NO3–N) movement with conventional tillage, along with other problems that through the soil profile. Potential water quality and NO3–N loss probaff...
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