Chemical and biological attributes of soil and soybean (Glycine max) yield in integrated systems in the Cerrado of north-east Brazil

IF 1.2 4区农林科学 Q4 SOIL SCIENCE

Soil Research Pub Date : 2024-06-20 DOI:10.1071/sr23120

Alcilane Arnaldo Silva, Julian Junio de Jesus Lacerda, Suzane Pereira Carvalho, Rubens de Sá Ferreira, Ramilos Rodrigues de Brito, Renato Falconeres Vogado, Raimundo Bezerra de Araújo Neto, Edvaldo Sagrilo, Michel André Cavigelli, Henrique Antunes de Souza

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引用次数: 0

Abstract

Context

Cultivation of forage grasses intercropped with maize (Zea mays) improves soil quality and yield of subsequent crops. However, for the Cerrado of north-east Brazil, little is known about the effects of this practice on soil chemical and biological attributes and on succeeding soybean crop’s yield and nutrition.

Aims

This study aimed to evaluate the influence of intercropping maize with forage grasses on soil chemical and biological properties and on the nutritional status and yield of succeeding soybean in the Cerrado of Piauí, Brazil.

Methods

In the 2016/2017 cropping season, maize (M) was grown in monoculture and intercropped with Megathyrsus maximus cvs Zuri, Massai, Tanzania, and Tamani; Urochloa brizantha cv. Marandu, and Urochloa ruziziensis cv. Ruziziensis. In the 2017/2018 and 2018/2019 cropping seasons, soybean (Glycine max) was grown on the same plots.

Key results

In the 2017/2018 cropping season, highest soil K concentrations in the 0–0.1 m depth were observed following M + Zuri and M + Massai. In the 2018/2019 cropping season, soybean grown after monoculture maize, M + Zuri, M + Tanzania and M + Ruziziensis promoted the highest soil basal respiration. Intercropping maize with forage grasses of the genus Urochloa increased the soil humic substances and carbon concentrations. The M + Tanzania treatment increased soybean leaf P and K concentrations in the 2017/2018 cropping season.

Conclusions

Intercropping maize with forage grasses improved soil fertility and increased cumulative soybean grain yield by 15%.

Implications

Maize intercropped with forage grasses, especially of the genus Urochloa, increases humic fractions and total soil organic carbon, and is thus a feasible agricultural management.

查看原文本刊更多论文

巴西东北部塞拉多地区综合系统中土壤和大豆（Glycine max）产量的化学和生物属性

背景玉米（玉米）间作牧草可提高土壤质量和后茬作物的产量。然而，在巴西东北部的塞拉多地区，人们对这种做法对土壤化学和生物属性以及后茬大豆作物产量和营养的影响知之甚少。目的本研究旨在评估玉米与牧草间作对巴西皮奥伊塞拉多地区土壤化学性质和生物属性以及后茬大豆营养状况和产量的影响。方法在2016/2017种植季，玉米（M）以单作方式种植，并与Megathyrs maximus cvs Zuri、Massai、Tanzania和Tamani；Urochloa brizantha cv. Marandu和Urochloa ruziziensis cv. Ruziziensis间作。在 2017/2018 年和 2018/2019 年种植季节，在相同的地块上种植了大豆（Glycine max）。主要结果在2017/2018种植季，M + Zuri和M + Massai之后，0-0.1米深度的土壤钾浓度最高。在 2018/2019 种植季，在单作玉米、M + Zuri、M + Tanzania 和 M + Ruziziensis 后种植的大豆促进了最高的土壤基本呼吸作用。玉米与 Urochloa 属牧草间作增加了土壤腐殖质和碳浓度。在2017/2018种植季，M+坦桑尼亚处理提高了大豆叶片P和K浓度。结论玉米与牧草间作改善了土壤肥力，并使大豆累计产量提高了15%。意义玉米与牧草（尤其是筇竹属牧草）间作可增加腐殖质组分和土壤有机碳总量，因此是一种可行的农业管理方法。

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来源期刊

Soil Research SOIL SCIENCE-

CiteScore

3.20

自引率

6.20%

发文量

审稿时长

4.5 months

期刊介绍： Soil Research (formerly known as Australian Journal of Soil Research) is an international journal that aims to rapidly publish high-quality, novel research about fundamental and applied aspects of soil science. As well as publishing in traditional aspects of soil biology, soil physics and soil chemistry across terrestrial ecosystems, the journal welcomes manuscripts dealing with wider interactions of soils with the environment. Soil Research is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.