Soybean in Crop Rotation with Maize and Palisade Grass Intercropping Enhances the Long-term Effects of Surface Liming in
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ORIGINAL PAPER
Soybean in Crop Rotation with Maize and Palisade Grass Intercropping Enhances the Long-term Effects of Surface Liming in No-till System João William Bossolani 1,2 & Fabiana Lopes dos Santos 3 & Hugo Henrique Andrade Meneghette 3 & Izabela Rodrigues Sanches 3 & Luiz Gustavo Moretti 1,2 & Lucas Fenelon Parra 3 & Edson Lazarini 3 Received: 13 July 2020 / Accepted: 22 September 2020 # Sociedad Chilena de la Ciencia del Suelo 2020
Abstract Tropical and subtropical soils are characterized by low natural fertility. Therefore, further research needs to be undertaken to increase surface liming efficiency, improve soil quality, and promote crop development. The low solubility of lime has hampered acidity correction in deeper layers, particularly if a no-tillage system is used. However, surface liming efficiency can be improved if efficient crop rotation programs are implemented. Therefore, the main aim of this study was to investigate the long-term effects of lime doses on soil fertility and the cascading effects of these changes in soybean nutrition and productivity after maize monocrop or intercropped with palisade grass during three growing seasons. In a long-term experiment (started in 2019), soybean was cultivated under four lime doses (0, 2000, 4000, and 6000 kg ha−1) applied to soil surface in two crop systems (after maize monocrop or intercropped maize with palisade grass) during three consecutive agricultural years (2016–2019). Liming reduced soil acidic parameters and increased P, Ca2+, Mg2+, and S–SO42− availability down the soil profile, which improved soybean nutrition and grain yield, particularly when it followed intercropped maize. Intercropping exploits species complementarities, which results in increasing the effectiveness of surface liming under no-tillage systems, contributing to higher soybean yields in crop rotation. Keywords Glycine max L. Merrill . Crop rotation . Urochloa brizantha . No-tillage system . Soil acidity correction
Highlights • The insertion of the intercropping system increases the efficiency of surface liming even in layers below 0.2-m deep. • The micronutrients availability is reduced in higher lime doses, however, remain within the range considered adequate for crop development. • Soil pH and base saturation are the soil parameters that most influence the increase in soybean nutrition and yield, and H+Al is the factor that most reduces these parameters. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s42729-020-00347-2) contains supplementary material, which is available to authorized users. * João William Bossolani [email protected] * Edson Lazarini [email protected] 1
Department of Crop Science, College of Agricultural Sciences, São Paulo State University (UNESP), Botucatu, São Paulo 18610-034, Brazil
2
Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6708 PB Wageningen, The Netherlands
3
Department of Plant Science, Food Engineering and Socio– Economics, School of Natura
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