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首页> 外文期刊>Open Journal of Soil Science >Effects of Direct Sowing under Mulch-Based Cropping System (DMC) on Cotton and Maize Yield and Chemical Characteristics of Ferruginous Soil (Lixisoil) in the South Sudan Area of Burkina Faso
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Effects of Direct Sowing under Mulch-Based Cropping System (DMC) on Cotton and Maize Yield and Chemical Characteristics of Ferruginous Soil (Lixisoil) in the South Sudan Area of Burkina Faso

机译：基于覆盖的种植体系（DMC）下直接播种对Burkina Faso南苏丹地区棉花及玉米产量和化学特征的影响

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摘要

To better understand the effects of direct sowing under mulch-based cropping system (DMC) in Burkina Faso’s cotton production systems, randomized blocks of Fisher experimental design were implemented at Farako-B a research station from 2010 to 2019. The study was conducted on lixisoil to evaluate DMC effects on biomass production, crops yields and soil chemical properties in a maize and cotton rotation system associated with cover crop. Conventional tillage and direct seeding without cover crop were compared to DMC under B . ruziziensis (GERM. & EVRARD), DMC under B . ruziziensis + M . cochinchinensis mulch and DMC under C. juncea (L.) mulch used in association with maize. Biomass production, crop yields and soil chemistry were evaluated. Results showed that over 10 years, no-till with or without a cover crop provided cotton seed and maize yields that were statistically equivalent to the tillage commonly practiced by farmers. Cover crop has allowed increasing the biomass production compared to Conventional Tillage and Direct Seeding. Maize yield has not varied significantly with the cover crop. After 10 years of maize and cotton rotation, the improvement raised from +27% to +38% for organic matter and from +15% to +29% for nitrogen with DMC including legumes such as M. cochinchinensis and C. juncea compared to Conventional Tillage on 0 - 5 cm depth. No significant differences were found on soil pH like P_(2)O_(5) and K_(2)O content. Although DMC with C. juncea used as cover crop did not provide the best biomass production, it contributes to increase nitrogen and organic matter and presents better mineral balances in 10 years of rotation. The 5 - 10 cm and 10 - 20 cm were little influenced by DMC systems.
机译：为了更好地了解Burkina Faso的棉花生产系统（DMC）下直接播种的影响，Faso的棉花生产系统，从2010年至2019年在Farako-B一名研究站中实施了Fisher实验设计的随机块。该研究在Lixisoil上进行了研究为了评估DMC对生物质生产的影响，玉米和棉花旋转系统中的作物产量和土壤化学性质与覆盖作物相关。将常规耕作和直接播种与B.DMC进行比较。 Ruziziensis（胚芽。＆amp; Evrard），DMC下B。 Ruziziensis + m。 C. juncea（L.）覆盖的Cochinchinensis覆盖物和DMC与玉米结合使用。评估生物质生产，作物产量和土壤化学。结果表明，超过10年，没有或没有覆盖作物提供棉花种子和玉米产量，这些玉米产量与农民常用的耕作相同。与常规耕作和直接播种相比，覆盖作物允许增加生物质生产。覆盖作物的玉米产量没有显着变化。经过10年的玉米和棉花旋转后，有机质的改善率升高至+ + 38％，氮的+ 15％至+ 29％，含有DMC，包括豆类，如M. Cochinchinensis和C. juncea与常规相比耕作0-5厘米深度。在P_（2）O_（5）和K_（2）O内容中没有发现在土壤pH上没有显着差异。虽然DMC用C. juncea用作覆盖作物，但它没有提供最佳的生物质生产，但它有助于增加氮气和有机物，并在10年旋转中提出更好的矿物质平衡。 5 - 10厘米和10-20厘米受到DMC系统的影响很小。

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