2017
DOI: 10.1590/1983-21252017v30n420rc
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Physical-Chemical Quality of a Latossol Under Direct Seeding and Soybean-Corn Succession in the Cerrado-Amazonian Ecotone

Abstract: -The soybean-corn succession in no-tillage system (DSS) is the most common cultivation practice in the state of Mato Grosso. Soils submitted to this type of system are prone to the formation of fertility gradients and surface compaction, restricting crop productivity. The objective of this work was to evaluate the physical-chemical attributes of an Oxisol after 11 years of continuous succession of soybean and corn in direct seeding, using geostatistical analysis techniques and main components. The experiment w… Show more

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Cited by 14 publications
(10 citation statements)
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References 13 publications
(7 reference statements)
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“…Since, among the benefits of liming are the elevation of soil pH and the neutralization of toxic aluminum, which is detrimental to the development of plant roots; the supply of calcium and magnesium to plants; the best use of nutrients such as nitrogen, phosphorus, potassium, sulfur and molybdenum; the increase of the cation exchange capacity, with the release of sites of negative charges of the soil colloids, which allows the attraction of other nutrients, reducing leaching; the increase of the microbial activity and the release of nutrients of the organic matter of the soil (Santos, & Resende, 2009). These values disagree with the values found by Freddi et al (2017), which in relation to the soil acidity values, found values in the superficial layers, superior to 5.5, being considered ideal for the nutrient's availability of the plants and to neutralize the exchangeable aluminum.…”
Section: Resultscontrasting
confidence: 90%
“…Since, among the benefits of liming are the elevation of soil pH and the neutralization of toxic aluminum, which is detrimental to the development of plant roots; the supply of calcium and magnesium to plants; the best use of nutrients such as nitrogen, phosphorus, potassium, sulfur and molybdenum; the increase of the cation exchange capacity, with the release of sites of negative charges of the soil colloids, which allows the attraction of other nutrients, reducing leaching; the increase of the microbial activity and the release of nutrients of the organic matter of the soil (Santos, & Resende, 2009). These values disagree with the values found by Freddi et al (2017), which in relation to the soil acidity values, found values in the superficial layers, superior to 5.5, being considered ideal for the nutrient's availability of the plants and to neutralize the exchangeable aluminum.…”
Section: Resultscontrasting
confidence: 90%
“…Desta forma, é possível concluir que ambos os sistemas de preparo influenciaram o solo de forma muito semelhante no momento das operações, apesar da variação nos valores de RP observada. Uma elevada amplitude na RP também foi constatada por Freddi et al (2017), com valores de até 9,37 MPa em um Latossolo Vermelho Amarelo após 11 anos de sucessão de soja e milho, em semeadura direta e valor médio de umidade gravimétrica de 0,26 kg kg -1 . Verificou-se que os métodos avaliados para estimar a cobertura vegetal morta do solo não diferiram significativamente entre si (Tabela 1).…”
Section: Resultsunclassified
“…Positive a values were also found by Pelissari et al (2012) and Gil et al (2018). Freddi et al (2017) obtained negative values of a when applying geostatistics on main data components in a Latosol in the Cerrado Amazonian.…”
Section: Geostatisticsmentioning
confidence: 93%