2000
DOI: 10.1590/s0100-204x2000000400020
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Avaliação do fosfato natural de Gafsa para recuperação de pastagem degradada em latossolo vermelho-escuro

Abstract: e THOMAZ ADOLPHO REIN 2 RESUMO -Este experimento de campo, instalado em janeiro de 1994, teve os objetivos: 1) avaliar a eficiência do fosfato natural de Gafsa farelado (FGF) na recuperação de pastagem de Brachiaria decumbens cv. Basilisk num Latossolo Vermelho-Escuro textura argilosa do Distrito Federal, e 2) verificar efeitos de interações entre fontes de P (fosfato natural de Gafsa e superfosfato triplo (SFT) e incorporação do fosfato com grade e adubação complementar (N, Ca, Mg, K, S e micronutrientes), so… Show more

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Cited by 10 publications
(8 citation statements)
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“…Similar increases in dry matter yield with the addition of phosphorous on Urochloa decumbens were obtained by Yost et al (1982) and Soares et al (2000) by incorporating 150 kg ha -1 of natural rock phosphate from North Carolina (30% of P 2 O 5 ) and 100 kg ha -1 of reactive natural rock phosphate from Gafsa (28% of P 2 O 5 ), respectively. Similar quantities of triple superphosphate (soluble source -40% of P 2 O 5 ) were also obtained with the use of RNRP (Arad and North Carolina) by Moreira & Malavolta (2001) with alfalfa (Medicago sativa) and Brazilian butterfly peas (Centrosema pubescens Benth).…”
Section: Resultssupporting
confidence: 67%
“…Similar increases in dry matter yield with the addition of phosphorous on Urochloa decumbens were obtained by Yost et al (1982) and Soares et al (2000) by incorporating 150 kg ha -1 of natural rock phosphate from North Carolina (30% of P 2 O 5 ) and 100 kg ha -1 of reactive natural rock phosphate from Gafsa (28% of P 2 O 5 ), respectively. Similar quantities of triple superphosphate (soluble source -40% of P 2 O 5 ) were also obtained with the use of RNRP (Arad and North Carolina) by Moreira & Malavolta (2001) with alfalfa (Medicago sativa) and Brazilian butterfly peas (Centrosema pubescens Benth).…”
Section: Resultssupporting
confidence: 67%
“…More than half of an estimated total of 48 million hectares in the region are Brachiaria decumbens pastures (Soares et al, 2000). However, approximately 80 % of the pastures in the Cerrado are partially degraded, as indicated by the low productivity and low support capacity (Lima et al, 2000).…”
Section: Introductionmentioning
confidence: 99%
“…The most P-sources used in forage grasses are soluble P-sources (Table 1), and less is relate to reactive natural phosphate (RNP), even with such researches showing the incorporation of RNP can result in approximated efficiency than soluble sources as triple phosphate [72]. Even with low solubility, maybe in sand soil, it is possible to improve the uptake of forage through the use of RNP in pasture because of minor adsorption site than in clay soil.…”
Section: Right Sourcementioning
confidence: 99%
“…Massai [73]. In the case of Brachiaria decumbens, application of RNF promoted 30% of dry matter production with RNF was applied [72]. Therefore, it is important to remember that acidity in rhizosphere is higher than surround soil [15], which can contribute to improve RNF solubility and plant uptake.…”
Section: Right Sourcementioning
confidence: 99%