Fall Rice Straw Management and Winter Flooding Treatment Effects on a Subsequent Soybean Crop
Fall Rice Straw Management and Winter Flooding Treatment Effects on a Subsequent Soybean Crop
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秋季稻秆管理和冬季洪水处理对后续大豆作物的影响
DOI：
10.1300/j064v26n01_07
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发表时间：
2005
影响因子：
--
通讯作者：
K. Reinecke
中科院分区：
文献类型：
--
作者：
M. Anders;T. Windham;R. Mcnew;K. Reinecke
摘要秋稻（Oryza sativa L.）秸秆还田和冬淹对旱地大豆和灌溉大豆产量和效益的影响梅尔。]作物研究了三年。稻草处理包括圆盘，滚动，或立茬。冬季洪水处理包括保持10厘米的最小水深抽水时，必要的，蓄水可用的降雨，排水领域，以防止洪水。随后的大豆作物作为常规耕作系统或免耕系统进行管理。耕作制度处理进一步分为灌溉或旱地。结果表明，无论是秋季稻草管理还是冬季淹水处理对大豆种子产量都没有显著影响。前2年常规耕作大豆种子产量显著高于免耕，第3年差异不显著。灌溉大豆种子产量显着高于旱地地块的所有年份。3年平均净经济收益最大（390.00公顷-1）来自灌溉免耕系统。
ABSTRACT The effects of fall rice (Oryza sativa L.) straw management and winter flooding on the yield and profitability of subsequent irrigated and dryland soybean [Glycine max (L.) Merr.] crops were studied for 3 years. Rice straw treatments consisted of disking, rolling, or standing stubble. Winter flooding treatments consisted of maintaining a minimum water depth of 10 cm by pumping water when necessary, impounding available rainfall, and draining fields to prevent flooding. The following soybean crop was managed as a conventional-tillage system or no-till system. Tillage system treatments were further divided into irrigated or dryland. Results indicated that there were no significant effects from either fall rice straw management or winter flooding treatments on soybean seed yields. Soybean seed yields for the conventional-tillage system were significantly greater than those for the no-till system for the first 2 yrs and not different in the third year. Irrigated soybean seed yields were significantly greater than those from dryland plots for all years. Net economic returns averaged over the 3 yrs were greatest ($390.00 ha−1) from the irrigated no-till system.