Previous cultivation of palisade grass and soil correctives: influence on growth and yield of soybean cultivated under various soil compaction levels

Souza, Marcos André Silva; Silva, Douglas Ramos Guelfi; Ávila, Fabrício William; Faquin, Valdemar; Oliveira, Geraldo César de; Bastos, Carla Elisa Alves

doi:10.1590/s1413-70542011000600013

Cited by 4 publications

(5 citation statements)

References 14 publications

(11 reference statements)

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“…De maneira geral, o acúmulo dos nutrientes nos vegetais é mais dependente da massa seca produzida do que de seus teores nos tecidos. Dessa maneira, o acúmulo dos macronutrientes (Figura 1) seguiu o mesmo comportamento do crescimento da soja em função dos sistemas de cultivos e das densidades do solo estudadas, cujos resultados estão em Souza (2011). Assim, os maiores acúmulos de macronutrientes foram observados na soja cultivada no solo com cultivo prévio do capim-Marandu e, em ambos os sistemas de cultivo, o aumento da densidade do solo promoveu reduções nos seus acúmulos, à exceção de Ca e Mg.…”

Section: Resultsunclassified

“…Em solos ácidos, ocorre menor disponibilidade de P pela sua precipitação com Fe e Al, solúveis nessa condição de pH (SOUSA et al, 2007), reduzindo, assim, a sua absorção e acúmulo pela planta. Nas maiores densidades esse efeito não foi observado, devido à limitação física do solo ao crescimento das plantas, principalmente o radicular, não permitindo diferenças pronunciadas na produção de massa seca entre os corretivos utilizados (SOUZA, 2011).…”

Section: Resultsunclassified

“…Pesquisas têm demonstrado que à semelhança do P, o Si sofre a adsorção específica às superfícies dos óxidos de Fe e Al do solo (POZZA et al, 2007;SOUZA, 2011). Assim, o P e o Si competem entre si pelos mesmos sítios de adsorção, de maneira que o segundo pode deslocar o primeiro e vice-versa, da fase sólida para a líquida do solo (CARVALHO et al, 2000).…”

Section: Resultsunclassified

“…O material vegetal foi moído e analisado para os macronutrientes de acordo com a metodologia descrita por Malavolta (1997). Nesse trabalho, os dados de produção de massa seca, cujos resultados estão em Souza (2011), foram usados apenas para relacioná-los com a concentração dos macronutrientes e calcular seus acúmulos na parte aérea da soja.…”

Section: Methodsunclassified

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Acúmulo de macronutrientes na soja influenciado pelo cultivo prévio do capim-marandu, correção e compactação do solo

Souza¹,

Faquin²,

Guelfi³

et al. 2012

Rev. Ciênc. Agron.

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; seis tratamentos de correção: 1) controle, sem correção; 2) calcário; 3) silicato de cálcio; 4) gesso; 5) calcário + gesso; 6) silicato de cálcio + gesso; além de dois sistemas de cultivo: com e sem cultivo prévio do capim-Marandu. As unidades experimentais foram compostas por vasos de tubos de PVC de 20 cm de diâmetro, compostos por dois anéis: o anel inferior, de 40 cm de altura, recebeu o solo sob condições naturais e densidade de 1,0 Mg m ; six conditioning treatments: 1) a control with no conditioning, 2) limestone; 3) calcium silicate, 4) gypsum, 5) limestone and gypsum, 6) calcium silicate and gypsum; besides two cultivation systems: with and without the prior cultivation of marandu grass. The experimental units were made from PVC tubes, 20 cm in diameter, composed of two rings: the lower ring, 40 cm in height, received soil under natural conditions and at a density of 1.0 Mg m -3 ; the upper ring, 20 cm in height, representing 6.28 dm 3, received the density, conditioning and gypsum treatments as described below. In each unit, three soybean plants (cv. Conquest) were grown until the end of their cycle, when the accumulation of macronutrients in the crop was evaluated. The results showed that prior cultivation of marandu grass and the use of conditioners mitigated the negative effects of soil compaction on soybean nutrition. The use of soil conditioners contributed to an increase in the accumulation of nutrients in the soybean shoot, but the increase in compaction reduced the accumulation of N, P, K, Ca, Mg and S. Soil compaction persisted in part through the prior cultivation of Marandu grass.

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Section: Resultsunclassified

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Acúmulo de macronutrientes na soja influenciado pelo cultivo prévio do capim-marandu, correção e compactação do solo

Souza¹,

Faquin²,

Guelfi³

et al. 2012

Rev. Ciênc. Agron.

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“…The formation of this ionic pair prevents binding of Ca 2+ to soil loads and facilitates its downward movement to deeper soil layers (Nava et al., 2012). Phosphogypsum does not alter soil pH; instead, it benefits crop growth and yield in acidic soil by reducing Al toxicity and supplying Ca and S–SO 4 (Souza et al., 2011).…”

Section: Discussionmentioning

confidence: 99%

Methodologies for the application of calcium compounds in agropastoral systems: Effects on crop yields

Borges¹,

Hipólito²,

Tokuda³

et al. 2021

Agronomy Journal

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Soil acidity (pH <4.4) restricts exploration by the root system and impairs crop yield. To contribute to the development of alternative methodologies for correcting acidity in the surface and subsurface layers of soil, the present study evaluated the effects of seven combinations of application technique (surface, incorporation under soil tillage, or subsurface) and calcium (Ca) compounds (limestone [LS], phosphogypsum [PG], and hydrated lime [HL]) on soybean [Glycine max (L.) Merr.] and maize (Zea mays L.) grain yields and on the absorption of macronutrients and dry matter yield of palisade grass (Urochloa brizantha syn. Brachiaria brizantha ‘Marandu’) in a Typic Hapludalf in an agropastoral system in Brazil. The experimental design was randomized complete blocks with four replications. The results support the following conclusions: (a) applying HL plus PG is a viable alternative to applying LS plus PG for soybean and maize crops, (b) incorporating LS by plowing and harrowing is not a viable alternative to applying LS on the surface, (c) applying HL plus PG on the subsurface is superior to applying HL plus PG on the surface for soybean and palisade grass cultivation, (d) incorporating LS plus PG followed by annually applying LS on the surface improves palisade grass crop yield, (e) annually applying LS plus PG 2 yr before and annually applying LS plus PG increase palisade grass crop yield, and (f) annually applying LS or HL plus PG increases the absorption of Mg and S by palisade grass.

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Characterization and nutrient release from silicate rocks and influence on chemical changes in soil

Silva

Marchi

Spehar

et al. 2012

Rev. Bras. Ciênc. Solo

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summarY the expansion of Brazilian agriculture has led to a heavy dependence on imported fertilizers to ensure the supply of the growing food demand. this fact has contributed to a growing interest in alternative nutrient sources, such as ground silicate rocks. it is necessary, however, to know the potential of nutrient release and changes these materials can cause in soils. the purpose of this study was to characterize six silicate rocks and evaluate their effects on the chemical properties of treated soil, assessed by chemical extractants after greenhouse incubation. the experimental design consisted of completely randomized plots, in a 3 x 6 factorial scheme, with four replications. the factors were potassium levels (0-control: without silicate rock application; 200; 400; 600 kg ha -1 of k 2 o), supplied as six silicate rock types (breccia, biotite schist, ultramafic rock, phlogopite schist and two types of mining waste). the chemical, physical and mineralogical properties of the alternative rock fertilizers were characterized. treatments were applied to a dystrophic red-Yellow oxisol (ferralsol), which was incubated for 100 days, at 70 % (w/w) moisture in 3.7 kg/pots. the soil was evaluated for ph; calcium and magnesium were extracted with kCl 1 mol l -1 ; potassium, phosphorus and sodium by mehlich 1; nickel, copper and zinc with dtPa; and the saturation of the cation exchange capacity was calculated for aluminum, calcium, magnesium, potassium, and sodium, and overall base saturation. the alternative fertilizers affected soil chemical properties. ultramafic rock and Chapada mining byproduct (CmB) were the silicate rocks that most influenced (1) received for publication in June 29, 2011 and approved in april 12, 2012. (2) Professor soil science department, federal university of lavras -ufla. CP 3037, CeP 37200-000 lavras (mG), Brazil. e-mails:douglasguelfi@dcs.ufla.br; guilherm@dcs.ufla.br (3) research embrapa Cerrados, rodovia Br 020, km 18, CeP 73370-970 Planaltina (df), Brazil. e-mails: giuliano.marchi@cpac. embrapa.br; rein@cpac.embrapa.br (4) Professor faculty of agronomy and Veterinary medicine, university of Brasília, Campus universitário darcy ribeiro, asa norte, CeP 70910-970 Brasília (df), Brazil. e-mail: spehar@unb.br (5) student of the doctorate Program on

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Previous cultivation of palisade grass and soil correctives: influence on growth and yield of soybean cultivated under various soil compaction levels

Cited by 4 publications

References 14 publications

Acúmulo de macronutrientes na soja influenciado pelo cultivo prévio do capim-marandu, correção e compactação do solo

Acúmulo de macronutrientes na soja influenciado pelo cultivo prévio do capim-marandu, correção e compactação do solo

Methodologies for the application of calcium compounds in agropastoral systems: Effects on crop yields

Characterization and nutrient release from silicate rocks and influence on chemical changes in soil

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