ABSTRACT The application of alternative and sustainable soil correctives to increase soil pH in sowing furrows can promote yield increases in soybean crops. The aim of this study was to characterize two different soil corrective sources in granular and powder forms and to evaluate the agronomic efficiency of their complementary application in a sowing furrow of a soybean crop. Two experiments were conducted. Regarding the first experiment, there were 5 treatments: control, biogenic lime powder, biogenic granular lime, common lime powder, and common granular lime. All applications were performed in a seeding furrow at a dose of 16 kg ha−1. The experiment was carried out in randomized blocks with five replicates. The second experiment involved the characterization of the sources and their forms by means of X-ray diffraction, total chemical analysis and neutralization power. The results showed that in comparison to the control, the application of correctives to increase soil pH in the sowing furrow promoted significantly higher growth and greater soybean yield, although the sources did not differ from each other. The soil pH corrective application in the sowing furrow was important for dissolution in the soil and consequently soybean yield. The neutralizing capacities of the correctives for all the granulometries tested were similar. Therefore, applying these soil pH correctives in granular or powder forms in sowing furrows might be an additional management alternative.

中文翻译：

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颗粒和粉末形式的生物和普通石灰表征及其在大豆作物播种沟中的应用

摘要 应用替代性和可持续的土壤改良剂来增加播种犁沟中的土壤 pH 值，可以促进大豆作物的产量增加。本研究的目的是表征两种不同的颗粒和粉末形式的土壤矫正源，并评估它们在大豆作物播种沟中互补应用的农艺效率。进行了两个实验。对于第一个实验，有5个处理：对照、生物石灰粉、生物颗粒石灰、普通石灰粉和普通颗粒石灰。所有施用均在播种沟中以 16 kg ha-1 的剂量进行。实验在随机区组中进行，重复五次。第二个实验涉及通过 X 射线衍射表征源及其形式，总化学分析和中和能力。结果表明，与对照相比，在播种沟中施用提高土壤 pH 值的修正剂显着促进了大豆的生长和更高的产量，尽管来源没有差异。在播种沟中进行土壤 pH 校正对于土壤中的溶解和大豆产量很重要。对于所有测试的粒度测量，校正剂的中和能力是相似的。因此，在播种犁沟中以颗粒或粉末形式应用这些土壤 pH 值校正剂可能是一种额外的管理选择。在播种犁沟中应用改良剂以提高土壤 pH 值显着促进了更高的生长和更高的大豆产量，尽管来源并无不同。在播种沟中进行土壤 pH 校正对于土壤中的溶解和大豆产量很重要。对于所有测试的粒度测量，校正剂的中和能力是相似的。因此，在播种犁沟中以颗粒或粉末形式应用这些土壤 pH 值校正剂可能是一种额外的管理选择。在播种犁沟中应用改良剂以提高土壤 pH 值显着促进了更高的生长和更高的大豆产量，尽管来源并无不同。在播种沟中进行土壤 pH 校正对于土壤中的溶解和大豆产量很重要。对于所有测试的粒度测量，校正剂的中和能力是相似的。因此，在播种犁沟中以颗粒或粉末形式应用这些土壤 pH 值校正剂可能是一种额外的管理选择。