Soil and Rice Responses to Phosphate Fertilizer in Two Contrasting Seasons on Acid Sulfate Soil

Nguyen, De Ngoc; Nguyen, Truc T.; Quy, Tran Ngoc; MacDonald, Bennett; To, Tuong Phuc; Tran, Dung Van; Nguyen, Qui Van

doi:10.1080/00103624.2016.1253719

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…The oxygenation of rich sulphur matter produces ASS that presents many plant-growing constraints. The most critical rice-growing constraints in ASS are aluminium toxicity and phosphorous deficiency, which are associated with low pH levels and Fe toxicity in field trials [12,13]. Tanaka and Navasero [50] also found a relationship with crop management, observing that the Al content of the soil solution diminished after flooding, and they concluded that the plant growth in the lowlands was not affected by aluminium toxicity, whereas the main cause of poor lowland rice growth in ASS was iron toxicity.…”

Section: Discussionmentioning

confidence: 99%

“…Rice is estimated to be grown on 4 million hectares (Mha) of ASS, mainly in the Mekong Delta and coastal areas of Africa (Senegal, Gambia, Guinea Bissau, Sierra Leone, Liberia), SE Asia (Indonesia, Thailand) and South America (Venezuela, the Guyanas) [11]. The most critical rice-growing constraints in ASS are aluminium toxicity and phosphorous deficiency, which are associated with low pH levels and Fe toxicity in field trials [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Improving the Chemical Properties of Acid Sulphate Soils from the Casamance River Basin

Bautista,

Oliver,

Lidón

et al. 2023

Land

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The anoxic conditions produced after the reflooding of acid sulphate soil (ASS) can reduce sulphate and/or Fe(III) with a consequent rise in pH. This study aimed to compare the effect of different amendments on ASS remediation and to analyse the effect on soil pH and exchangeable aluminium. Two mid-term incubation experiments were carried out to analyse the effect of amendments and water management on ASS. Soil samples were taken in the Santak Valley from four agricultural plots. During the first experiment, each soil sample was subject to two water management systems (flooded and non-flooded) and three amendment types (rice straw, manure, and lime). During the second experiment, the flooded condition was performed with three organic amendments (rice straw, manure, and biochar). In the first experiment, the amendments with organic matter (rice straw, and manure) increased the pH more under the flooded conditions, and manure was effective in reducing exchangeable aluminium (Alex) to 45% in the control soil. In the second experiment, all the organic amendments reduced soluble Al, but whereas straw increased soluble Fe, biochar diminished it. The amendment addition increased the soil pH and reduced Alex. The Alex reduction was greater for the stabler organic amendments: manure and biochar.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving the Chemical Properties of Acid Sulphate Soils from the Casamance River Basin

Bautista,

Oliver,

Lidón

et al. 2023

Land

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“…The optimum doses of Phospat was 60 kg P 2 O 5 /ha during the dry season and 80 kg P 2 O 5 /ha in the rainy season. (Nguyen et al, 2017). Biochar utilization as soil conditoners substance had been known since 1870.…”

Section: Strategy For Increasing Rice Productionmentioning

confidence: 99%

Land Suitability and Agricultural Technology for Rice Cultivation on Tidal Lowland Reclamation in South Sumatra

Imanudin

Sulistiyani

Armanto

et al. 2021

J. Lahan Suboptimal

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Tidal lowland is one of the potential lands for agriculture that is found very widely in coastal areas of South Sumatra. There are about 400,000 hectares (ha) was reclaimed for agriculture purpose. However, in many parts, the rice production is still low (<3 ton/ha), mainly in the high part of hydrotopography class (Type C) that the tidewater could not possibly irrigate the land. This study aimed to evaluate the level of actual and potential suitability of tidal swamps for rice plants. This research has been carried out in Bandar Jaya Village, Air Sugihan Subdistrict, Ogan Komering Ilir Regency. This research used a survey level method with very detailed (intensive) with a scale of 1:6,000 covering a research area of 16 ha. The results showed that actual suitability for rice plants in the study site is N-n with an area of 5 ha and N-f, n with an area of 11 ha with limiting factors of soil pH and P nutrient. The potential land suitability class for rice plants in the study location is S3-n with an area of 5 ha and S3-f, n with an area of 11 ha. Land quality improvement was done by using the lime application and control water table at a depth of at least 10 cm from the soil surface during rice growth. Rainwater should be retained in the tertiary block as much as possible to fulfill crop water requirements. Setting the planting time (November-January) and balanced fertilization will be able to increase the land suitability class to S1 (highly suitable).

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“…Phosphorus is a limiting factor for plant growth in wetlands, especially in ASS. Phosphorus-fertilizer application could supply P for plant and help reduce the level of exchangeable Al and Fe, thereby improving the rice growth in ASS (Nguyen et al, 2017). On the other hand, Purnomo et al (2005) reported local rice varieties yielded even without P fertilizer application, this means P requirement of rice plants can be provided from the native source of P in the soil.…”

Section: Introductionmentioning

confidence: 99%

Fe-P pools as phosphorus source for rice in acid sulfate soils

Fahmi,

Hairani,

Alwi

et al. 2023

Chil. j. agric. res.

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Acid sulfate soils (ASS) are rich in Fe, low in available P, and low in soil pH. In acid soils, low P availability is associated with high Fe concentration, which has a high capability in P retention. The reactivity of Fe oxyhydroxides turns large proportions of soil P into insoluble or unavailable form. This review paper is addressed to provide new insights into the Fe and P relationship as the P source for rice (Oryza sativa L.) in ASS. Fertilizer application did not significantly alter P solubility in soil solution due to high reactivity and retention power of Fe mineral in ASS, but rice cultivation practice such as water management and soil amelioration has influenced formation, crystallization and character of Fe mineral. Subsequently determining adsorption and desorption of P. Soil waterlogging and drying alternately during rice cultivation have change soil pH and redox potential (Eh), causing dissolution of P from vivianite and reduction of Fe(III)-P to Fe(II)-P. We summarize that Fe-P pools (amorphous-Fe-P) in the rice fields in ASS are categorized as readily available or labile P fraction.

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Soil and Rice Responses to Phosphate Fertilizer in Two Contrasting Seasons on Acid Sulfate Soil

Cited by 5 publications

References 8 publications

Improving the Chemical Properties of Acid Sulphate Soils from the Casamance River Basin

Improving the Chemical Properties of Acid Sulphate Soils from the Casamance River Basin

Land Suitability and Agricultural Technology for Rice Cultivation on Tidal Lowland Reclamation in South Sumatra

Fe-P pools as phosphorus source for rice in acid sulfate soils

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