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为了探索适宜重庆市坡耕地植烟的保护耕作措施,采用田间试验,研究了起垄方式和垄间覆盖物互作对坡地烟田土壤理化性状及烤烟经济性状的影响。结果表明:1等高线起垄和垄间覆盖秸秆、等高线起垄和垄间种植黑麦草组合的烟株主要农艺性状较好,有利于烟株的生长发育;2等高线起垄和垄间覆盖秸秆、等高线起垄和垄间种植黑麦草组合能有效改善土壤理化性状;3烤烟经济性状表现为处理组合等高线起垄和垄间覆盖秸秆、等高线起垄和垄间种植黑麦草的烟叶产量、产值及上等烟比例较高,表现较优。综合分析,在坡地上植烟时,采用等高线起垄和垄间覆盖秸秆、种植黑麦草方式,不仅能保障烤烟的长势和产值,还有利于保持土壤养分,改善土壤的理化性状。
In order to explore the conservation tillage measures suitable for planting tobacco in sloping arable land in Chongqing, a field experiment was conducted to study the effects of ridge-ridge interaction and ridge-cover interaction on soil physical and chemical properties and economic characteristics of flue-cured tobacco fields. The results showed that: 1 contour ridge ridge and ridge cover straw, ridge contour ridge ridge and ridge planting ryegrass combination of the main agronomic traits better conducive to the growth of tobacco plants; 2 contour Ridge And ridge cover straw, contour ridge Ridge and ridge planting ryegrass combinations can effectively improve soil physical and chemical properties; 3 economic characteristics of flue-cured tobacco showed combination of contour ridge ridge and ridge cover straw, contour ridge ridge and Ridge planting of ryegrass flue-cured tobacco production, higher output value and superior smoke, better performance. Comprehensive analysis, planting tobacco on the slope, the use of contour ridge Ridge and cover the straw ridge, planting ryegrass way, not only to protect the growth and output value of flue-cured tobacco, but also to maintain soil nutrients and improve soil physical and chemical properties.