2003
DOI: 10.1016/s0167-8809(03)00189-0
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Managing crop residues, fertilizers and leaf litters to improve soil C, nutrient balances, and the grain yield of rice and wheat cropping systems in Thailand and Australia

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Cited by 112 publications
(63 citation statements)
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“…The treatments of S. photeinocarpum, T. erecta, G. parviflora and B. pilosa increased available P content by 92.72% (p < 0.05), 70.61% (p < 0.05), 39.18% (p < 0.05) and 5.56% (p > 0.05) respectively compared with control, and the treatments of S. photeinocarpum, T. erecta, G. parviflora and B. pilosa increased available K content by 32.83% (p < 0.05), 30.15% (p < 0.05), 26.16% (p < 0.05) and 13.87% (p < 0.05) respectively compared with control. So, mulching with the straws of S. photeinocarpum, T. erecta, G. parviflora and B. pilosa increased available nutrients of Cd-contaminated soil, which was benefit for C. betacea seedlings growth, and was consistent with other studies [13]. Soil Catalase and Polyphenol Oxidase Activities.…”
Section: Resultssupporting
confidence: 90%
“…The treatments of S. photeinocarpum, T. erecta, G. parviflora and B. pilosa increased available P content by 92.72% (p < 0.05), 70.61% (p < 0.05), 39.18% (p < 0.05) and 5.56% (p > 0.05) respectively compared with control, and the treatments of S. photeinocarpum, T. erecta, G. parviflora and B. pilosa increased available K content by 32.83% (p < 0.05), 30.15% (p < 0.05), 26.16% (p < 0.05) and 13.87% (p < 0.05) respectively compared with control. So, mulching with the straws of S. photeinocarpum, T. erecta, G. parviflora and B. pilosa increased available nutrients of Cd-contaminated soil, which was benefit for C. betacea seedlings growth, and was consistent with other studies [13]. Soil Catalase and Polyphenol Oxidase Activities.…”
Section: Resultssupporting
confidence: 90%
“…Essa taxa de decomposição da MO é inferior às taxas que têm sido estimadas para Argissolo aerado com textura (220 g kg -1 argila) e mineralogia (predomínio de caulinita) similares, sob as mesmas condições climáticas, cuja taxa de decomposição da MO foi estimada em 1,9 % em SPD e em 4 % em SPC (Bayer et al, 2006). Essas diferenças indicam que, em caso de alagamento do solo, a taxa de decomposição da MO é reduzida devido ao efeito da anaerobiose na atividade microbiana nesses solos (Oades, 1988;Polwson & Olk, 2000;Whitbread et al, 2003) e que, principalmente, os fatores determinantes da estabilização da MO em solos aerados sob SPD possivelmente não se manifestam de forma tão intensa em solos de várzea.…”
Section: Resultados E Discussão Estoques De C Orgânicounclassified
“…Em solos aerados, a adoção de sistemas conservacionistas de manejo, como o sistema plantio direto (SPD), resulta no aumento dos estoques de C orgânico do solo, o qual é mais expressivo nas camadas superficiais do solo e é relacionado ao aporte anual de resíduos vegetais ao solo (Burle et al, 1997;Bayer et al, 2002;Diekow et al, 2005). Em solos de várzea, o aporte de resíduos contribui de maneira similar para o acúmulo de MO (Dobermann & Witt, 2000;Whitbread et al, 2003;Saharawat, 2005), mas pouco se conhece sobre o efeito de preparos de solo na dinâmica da MO em solos com drenagem restrita. Nesses solos, a decomposição da MO, na ausência de O 2 , usualmente ocorre em menores taxas do que em solos aerados e é dependente de receptores de elétrons como íon Fe, Mn e sulfato, resultando na oxidação parcial do C orgânico Powlson & Olk, 1999).…”
Section: Introductionunclassified
“…Interventions to improve soil water-holding capacity and nutrient retention have successfully increased yields. Modest and sustainable increases have been achieved in the sandy soils of northeast Thailand (Whitbread et al 2003) through improved management of crop residues and other organic inputs. Noble and Suzuki (2005) reported larger yield increases, of between 30 and 100%, in rainfed, lowland and organically grown rice crops in northeast Thailand when soils were treated with bentonite clays in farmer-initiated field studies.…”
Section: Lowland Plainsmentioning
confidence: 99%