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首页> 外文期刊>Arid Land Research and Management >Managing Parkia biglobosa and Vitellaria paradoxa prunings for crop production and improved soil properties in the sub-sudanian zone of Burkina Faso
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Managing Parkia biglobosa and Vitellaria paradoxa prunings for crop production and improved soil properties in the sub-sudanian zone of Burkina Faso

机译：在布基纳法索的苏丹南部地区管理大果Parkpark biglobosa和Vitellaria paradoxa修剪，以提高作物产量并改善土壤特性

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Tree pruning generates organic resources whose nitrogen content is not always recycled appropriately. A field experiment was conducted in the central plateau of Burkina Faso to test the possibilities of improving soil properties and crop production through the application of Parkia biglobosa (nere) and Vitellaria paradoxa (karite) prunings as mulch. Two rates of leaf material of each species were applied and compared with a control ( without mulch). Each treatment was repeated four times. Positions from the trees ( around the trunk, eastern side, western side and outside the crown) were considered as blocks in a randomized blocks design. The physical and chemical properties of soil were measured during the second year whereas millet production was assessed over two cropping seasons. Two laboratory experiments were conducted with leachates of the leaves of each species to test the possible inhibition of crop germination or growth. The results of the field experiment showed a depressing effect of the mulch of Parkia biglobosa by 33% for millet grain yield and by 21% for total dry matter. However, Vitellaria paradoxa mulch increased grain yield by 120% and total dry matter by 43%. Ponding time and total C content were higher on plots that received the highest amount of leaves of both species. In the laboratory experiments, germination of sorghum seeds treated with leachate of 50 g of the leaves of Vitellaria paradoxa in 250 mL distilled water was reduced by 37% whereas the reduction was only 19% for the leachate of the leaves of Parkia biglobosa. It was concluded that, at least in the short term, millet production could be improved through the application of Vitellaria paradoxa mulch.
机译：修剪树木会产生有机资源，其氮含量并不总是得到适当回收。在布基纳法索中部高原进行了田间试验，以测试通过应用Parkia biglobosa（nere）和Vitellaria paradoxa（karite）修剪作为覆盖物来改善土壤特性和作物生产的可能性。施用每种物种的两种叶片材料，并将其与对照（不覆盖）进行比较。每种处理重复四次。在随机区组设计中，树木的位置（树干，东侧，西侧和树冠外）被视为区组。在第二年测量了土壤的物理和化学性质，而在两个种植季节中评估了小米的产量。用每种物种的叶子的沥出液进行了两个实验室实验，以测试可能对作物发芽或生长的抑制作用。田间试验的结果表明，大叶Parkia biglobosa的覆盖率降低了33％，小米总产量降低了21％。然而，Vitellaria paradoxa覆盖增加了谷物产量120％，总干物质增加了43％。在两个物种的叶片数量最多的地块上，浸种时间和总碳含量较高。在实验室实验中，用250 g蒸馏水中的50 g矛盾的Vitellaria悖论叶片的沥出液处理的高粱种子的发芽减少了37％，而Parkia biglobosa的叶子渗出液的减少仅为19％。结论是，至少在短期内，通过应用Vitellaria paradoxa地膜可以提高小米的产量。

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