Luchese Augusto Vaghetti, Gutz de Castro Leite Ivone Janete, da Silva Giaretta Ana Paula, Alves Mylena Linhares, Pivetta Laércio Augusto, Missio Robson Fernando
Department of Agronomic Sciences, Federal University of Paraná (UFPR), Setor Palotina, Rua Pioneiro, 2153, Jd Dallas, Palotina, Paraná, Brazil.
Graduate Program in Biotechnology, Federal University of Paraná (UFPR), Setor Palotina, Rua Pioneiro, 2153, Jd Dallas, Palotina, Paraná, Brazil.
Heliyon. 2023 Feb 26;9(3):e14050. doi: 10.1016/j.heliyon.2023.e14050. eCollection 2023 Mar.
Production costs in Brazilian agriculture have increased with the rising prices of imported soluble fertilizers. To circumvent this import dependence, low-cost indigenous nutrient sources have been tested, including basalt rock powder (BRP). In this study, we assessed BRP and limestone effects on soil fertility, and soybean and maize dry mass (DM) accumulation. Four greenhouse pots experiments were arranged in a 2 × 4 factorial design with two soils (Clay and Sandy Clay Loam) and four doses of each material (0, 33, 66, and 99 Mg ha BRP and 0, 1, 2, and 4 Mg ha limestone), evaluated in two species (soybean and maize). At the end of the experiments, DM, shoot P and K concentrations, and soil pH and P, K, Ca, and Mg concentrations were assessed as a function of BRP and limestone application. Applying BRP increased DM production and improved soil fertility parameters such as pH, and Ca and P concentrations, with leaf P content also increasing. Meanwhile, limestone only triggered significant changes in pH and soil Ca content.
随着进口可溶性肥料价格上涨，巴西农业的生产成本有所增加。为了规避这种对进口的依赖，人们对包括玄武岩岩粉（BRP）在内的低成本本土养分来源进行了测试。在本研究中，我们评估了BRP和石灰石对土壤肥力以及大豆和玉米干物质（DM）积累的影响。四个温室盆栽试验采用2×4析因设计，有两种土壤（黏土和砂质黏壤土），每种材料有四个剂量（0、33、66和99 Mg/ha BRP以及0、1、2和4 Mg/ha石灰石），在两种作物（大豆和玉米）上进行评估。在试验结束时，评估了干物质、地上部磷和钾浓度以及土壤pH值和磷、钾、钙、镁浓度与BRP和石灰石施用的关系。施用BRP提高了干物质产量，改善了土壤肥力参数，如pH值以及钙和磷浓度，叶片磷含量也有所增加。同时，石灰石仅引起了pH值和土壤钙含量的显著变化。
