Estado nutricional e produção do capim-pé-de-galinha e da soja cultivada em sucessão em sistema antecipado de adubação

Francisco, Eros Artur Bohac; Câmara, Gil Miguel de Sousa; Segatelli, Cláudio Roberto

doi:10.1590/s0006-87052007000200009

Cited by 21 publications

(17 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Consequently, the P export through maize grain harvest is higher. According to Guimarães et al (2006), for 7,729 kg ha -1 grain yield, maize exports about 32 kg ha -1 P, which is higher than the 16 kg ha -1 P exported by 3,494 kg ha -1 of soybean grain (Francisco et al, 2007), and 6 kg ha -1 P exported with bean, with a grain yield of 1,758 kg ha -1 (Andrade et al, 2004). Additionally, the results may also have been influenced by slower decomposition of grass residues with higher C/N ratio, reducing decomposition rate and P release, compared to leguminous species.…”

Section: Resultsmentioning

confidence: 99%

“…Possibly, the explanation could be the use of bean as a summer crop in the previous growing season (2005/2006). According to Andrade et al (2004), this crop exports 20 kg ha -1 K through grain harvest, which is low compared to maize and soybean, with 45 kg ha -1 (Guimarães et al, 2006) and 56 kg ha -1 (Francisco et al, 2007), respectively. Due to the low K export, a great amount is traken up by plants and remains in the leaves, stems and roots.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Crop sequences in no-tillage system: effects on soil fertility and soybean, maize and rice yield

Marcelo

Corá

Fernandes

et al. 2009

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

Decomposing crop residues in no-tillage system can alter soil chemical properties, which may consequently influence the productivity of succession crops. The objective of this study was to evaluate soil chemical properties and soybean, maize and rice yield, grown in the summer, after winter crops in a no-tillage system. The experiment was carried out in Jaboticabal, SP, Brazil (21 ° 15 ' 22 '' S; 48 ° 18 ' 58 '' W) on a Red Latosol (Oxisol), in a completely randomized block design, in strip plots with three replications. The treatments consisted of four summer crop sequences (maize monocrop, soybean monocrop, soybean/maize rotation and rice/bean/cotton rotation) combined with seven winter crops (maize, sunflower, oilseed radish, pearl millet, pigeon pea, grain sorghum and sunn hemp). The experiment began in September 2002. After the winter crops in the 2005/2006 growing season and before the sowing of summer crops in the 2006/2007 season, soil samples were collected in the layers 0-2.5; 2.5-5.0; 5-10; 10-20; and 20-30 cm. Organic matter, pH, P, K+, Ca2+, Mg2+, and H + Al were determined in each soil sample. In the summer soybean/maize rotation and in maize the organic matter contents and P levels were lower, in the layers 0-10 cm and 0-20 cm, respectively. Summer rice/bean/cotton rotation increased soil K levels at 0-10 cm depth when sunn hemp and oilseed radish had previously been grown in the winter, and in the 0-2.5 cm layer for millet. Sunn hemp, millet, oilseed radish and sorghum grown in the winter increased organic matter contents in the soil down to 30 cm. Higher P levels were found at the depths 0-2.5 cm and 0-5 cm, respectively, when sunn hemp and oilseed radish were grown in the winter. Highest grain yields for soybean in monoculture were obtained in succession to winter oilseed radish and sunn hemp and in rotation with maize, after oilseed radish, sunn hemp and millet. Maize yields were highest in succession to winter oilseed radish, millet and pigeon pea. Rice yields were lowest when grown after sorghum.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Crop sequences in no-tillage system: effects on soil fertility and soybean, maize and rice yield

Marcelo

Corá

Fernandes

et al. 2009

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…A produção de biomassa seca do capim-pé-degalinha atingiu 5.210 kg ha -1 de biomassa seca, em plantio de verão no Estado de São Paulo (Muraishi et al, 2005), enquanto Franscisco et al (2007), em Piracicaba (SP), semeando em setembro e manejando no pleno florescimento com a adubação antecipada, obtiveram a produção de 6.375 kg ha -1 de biomassa seca. Em condições de safrinha, no sudoeste de Goiás, o rendimento desta cultura foi de 9.480 kg ha -1 (Assis et al, 2005) e no Piauí foi de 2.890 kg ha -1 de biomassa seca (Azevedo & Nascimento, 2002).…”

Section: Introductionunclassified

Biomassa, decomposição e cobertura do solo ocasionada por resíduos culturais de três espécies vegetais na região centro-oeste do Brasil

Boer

Assis

Silva

et al. 2008

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

RESUMOCom a crescente adoção da semeadura direta na região Centro-Oeste do Brasil, faz-se necessário maior conhecimento sobre as plantas de cobertura para produção de palha. O presente estudo teve como objetivo avaliar a produção de biomassa verde e seca, a percentagem de cobertura do solo, bem como a dinâmica da decomposição da palhada de três espécies de plantas de cobertura em safrinha: amaranto (

show abstract

“…Ruzigrass and P sources did not interact as to soybean yields and leaf-P contents. Francisco et al (2007) reported that P fertilization of increased finger millet (Eleusine coracana) biomass production, but had no effect on subsequent soybean yield.…”

Section: Resultsmentioning

confidence: 99%

Ruzigrass affecting soil-phosphorus availability

Merlin

He²,

Rosolem

2013

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to evaluate the effectiveness of ruzigrass (Urochloa ruziziensis) in enhancing soil-P availability in areas fertilized with soluble or reactive rock phosphates. The area had been cropped for five years under no-till, in a system involving soybean, triticale/black-oat, and pearl millet. Previously to the five-year cultivation period, corrective phosphorus fertilization was applied once on soil surface, at 0.0 and 80 kg ha -1 P 2 O 5 , as triple superphosphate or Arad rock phosphate. After this five-year period, plots received the same corrective P fertilization as before and ruzigrass was introduced to the cropping system in the stead of the other cover crops. Soil samples were taken (0-10 cm) after ruzigrass cultivation and subjected to soil-P fractionation. Soybean was grown thereafter without P application to seed furrow. Phosphorus availability in plots with ruzigrass was compared to the ones with spontaneous vegetation for two years. Ruzigrass cultivation increased inorganic (resin-extracted) and organic (NaHCO 3 ) soil P, as well as P concentration in soybean leaves, regardless of the P source. However, soybean yield did not increase significantly due to ruzigrass introduction to the cropping system. Soil-P availability did not differ between soluble and reactive P sources. Ruzigrass increases soil-P availability, especially where corrective P fertilization is performed.Index terms: Brachiaria ruziziensis, Urochloa ruziziensis, cover crops, crop rotation, P cycling, phosphorus fractionation. Efeito da braquiária sobre a disponibilidade de fósforo no soloResumo -O objetivo deste trabalho foi avaliar a eficácia da braquiária (Urochloa ruziziensis) em aumentar a disponibilidade de P, em solo de áreas fertilizadas com fosfatos solúveis ou reativos. A área havia sido cultivada em semeadura direta por cinco anos, em sistema de cultivo com soja, triticale/aveia-preta e milheto. Previamente ao período de cinco anos de cultivo, aplicou-se adubação corretiva de P à superfície do solo, com 0,0 ou 80,0 kg ha -1 P 2 O 5 , nas formas de superfosfato triplo ou fosfato Arad. Após esse período de cinco anos, as parcelas receberam a mesma adubação corretiva de antes, e a braquiária foi introduzida no sistema de cultivo no lugar das outras plantas de cobertura. Após o cultivo da braquiária, foram coletadas amostras de solo, na camada 0-10 cm, e submetidas ao fracionamento de P. A soja foi cultivada em seguida, sem adubação fosfatada no sulco de plantio. A disponibilidade de P nas parcelas com a braquiária foi comparada àquelas com vegetação espontânea, por dois anos. O cultivo da braquiária aumentou os teores de P inorgânico (extraído com resina) e orgânico (NaHCO 3 ) no solo, bem como o conteúdo de P nas folhas da soja, independentemente da fonte de P utilizada. No entanto, a produtividade da soja não aumentou significativamente pela introdução da braquiária ao sistema de cultivo. A braquiária aumenta a disponibilidade de P no solo, especialmente nas áreas com adubação fosfatada corre...

show abstract

Estado nutricional e produção do capim-pé-de-galinha e da soja cultivada em sucessão em sistema antecipado de adubação

Cited by 21 publications

References 7 publications

Crop sequences in no-tillage system: effects on soil fertility and soybean, maize and rice yield

Crop sequences in no-tillage system: effects on soil fertility and soybean, maize and rice yield

Biomassa, decomposição e cobertura do solo ocasionada por resíduos culturais de três espécies vegetais na região centro-oeste do Brasil

Ruzigrass affecting soil-phosphorus availability

Contact Info

Product

Resources

About