Does direct-seeded rice performance improve upon lime and phosphogypsum use?

Duart, Vanderson Modolon; Garbuio, Fernando José; Caires, Eduardo Fávero

doi:10.1016/j.still.2021.105055

Cited by 5 publications

(9 citation statements)

References 33 publications

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“…Dolomitic lime can improve the microbial activity of acidic soils and increase crop yields [93,94]. Besides providing Ca and Mg, dolomitic lime also increases soil nutrient availability, such as N, and P, in acid soils [94][95][96].…”

Section: Other Locally Exploitable Nutrient Sourcesmentioning

confidence: 99%

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Agroecological Nutrient Management Strategy for Attaining Sustainable Rice Self-Sufficiency in Indonesia

Susanti,

Cholidah,

Agus

2024

Sustainability

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Rice self-sufficiency is central to Indonesia’s agricultural development, but the country is increasingly challenged by population growth, climate change, and arable land scarcity. Agroecological nutrient management offers solutions though optimized fertilization, enhanced organic matter and biofertilizer utilizations, and improved farming systems and water management. Besides providing enough nutrients for crops, the agroecological approach also enhances resilience to climate change, reduces the intensity of greenhouse gas emissions, and improves the biological functions of rice soil. Organic and bio fertilizers can reduce the need for chemical fertilizers. For example, blue-green algae may contribute 30–40 kg N ha−1, while the application of phosphate solubilizing microbes can reduce the use of chemical phosphorous fertilizers by up to 50 percent. The country currently experiences substantial yield gaps of about 37 percent in irrigated and 48 percent in rain-fed rice. Achieving self-sufficiency requires that Indonesia accelerates annual yield growth through agroecological nutrient management from a historical 40 kg ha−1 year−1 to 74 kg ha−1 year−1. The aim is to raise the average yield from the current 5.2 t ha−1 year−1 to 7.3 t ha−1 year−1 by 2050. Simultaneously, controlling paddy field conversion to a maximum of 30,000 hectares per year is crucial. This strategic approach anticipates Indonesia’s milled rice production to reach around 40 million metric tonnes (Mt) by 2050, with an expected surplus of about 4 Mt.

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Section: Other Locally Exploitable Nutrient Sourcesmentioning

confidence: 99%

“…Indonesia possesses K-bearing minerals, such as K-feldspar and leucite (an aluminosilicate mineral), that contain most essential nutrients, including 4-20% of K [96]. Various techniques such as mechanochemistry, leaching, alkali fusion, and bioleaching can process these minerals into K fertilizers [114].…”

Section: Other Locally Exploitable Nutrient Sourcesmentioning

confidence: 99%

Agroecological Nutrient Management Strategy for Attaining Sustainable Rice Self-Sufficiency in Indonesia

Susanti,

Cholidah,

Agus

2024

Sustainability

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“…O cálcio é extremamente importante nas áreas agrícolas por todo o mundo, muito utilizado na correção de solos que apresentam acidez. O uso de fontes de cálcio ajuda a melhorar a química do solo, diminuindo as concentrações de metais como o Al 3+ , aumentando o crescimento do sistema radicular e a eficiência na absorção de água e do uso de nitrogênio pela cultura Research, Society and Development, v. 11, n. 13, e563111335912, 2022 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v11i13.35912 11 (Duart et al, 2021).…”

Section: Cálciounclassified

Eficiência bioeconômica da adubação mineral na cultura do sorgo

Silva

Salvador

Guerra

et al. 2022

RSD

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As mudanças climáticas apresentam grandes desafios para a gestão agrícola em relação às estratégias de adaptação, uso de fertilizantes e culturas tolerantes. Desta forma, objetivou-se com essa revisão investigar as premissas da adubação mineral no sorgo e apresentar a eficiência bioeconômica das respostas dessa cultura quando manejada com o uso de adubação mineral. Para atingir resultados satisfatórios, um dos pré-requisitos que devem ser observados é a aplicação da adubação mineral conforme a exigência nutricional da cultura. No sorgo, essa exigência varia de acordo com a produtividade da cultura em cada situação de cultivo. A extração de nutrientes do solo segue um aumento linear de acordo com o aumento da produtividade, indicando que quanto mais a cultura está condicionada a altos níveis de produtividade, maior será a retirada de nutrientes do sistema. Os nutrientes extraídos em maior quantidade pela cultura são nitrogênio, fósforo, potássio, cálcio e magnésio, e sua ordem de extração e acúmulo de macro e micronutrientes é: K > N > Ca > Mg > S > P > Fe > Zn > Mn > Cu. Ainda são escassas as pesquisas que descrevam o melhor custo-benefício da utilização dos nutrientes a fim de potencializar o aporte forrageiro. Portanto, recomenda-se a realização de pesquisas mais específicas voltadas para a eficiência bioeconômica da adubação mineral no sorgo em diferentes sistemas de produção, a fim de fornecer subsídios para a melhoria e maximização da produção dessa cultura, e consequentemente, promover o desenvolvimento socioeconômico das regiões envolvidas no cultivo do sorgo.

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“…Among them, several areas can be noted. The authors in [ 7 ] proposed a technology for the complex processing of phosphogypsum into a chemical ameliorant. The use of phosphogypsum has been shown to improve the growth quality of direct-seeded rice.…”

Section: Introductionmentioning

confidence: 99%

Studying the Process of Phosphogypsum Recycling into a Calcium Sulphide-Based Luminophor

Medennikov,

Egorova,

Shabelskaya

et al. 2024

Nanomaterials

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Currently, one of the most important problems of environmental protection is the deep and complex processing of mineral raw materials. This problem is especially relevant when processing substandard ores and production waste, one of which is phosphogypsum. This study examines the process of CaSO4/CaS composite material formation during the reduction of phosphogypsum with citric acid. The composite structure formation mechanism is proposed. The resulting materials are characterized using various methods, including X-ray diffraction (XRD), transmission electron microscopy, the Scherrer method, thermogravimetric analysis (TGA), and FT-IR spectroscopy. The reduced sample emits orange radiation in the range of 500–750 nm with a quantum yield of 0.17. Experimental results showed that the sample decomposition process in the solid state consisted of two components with a predominant contribution from the long-lived component (~46 ns). The optimal conditions for producing luminescent materials by reducing phosphogypsum with citric acid were determined: a heat treatment temperature of 1073 K, a holding time of 60 min, and a reducing agent mole fraction of 37%. It was found that an increase in temperature with a simultaneous decrease in heat treatment time, as well as a decrease in temperature with a simultaneous increase in heat treatment time, led to a decrease in the luminescent properties of the synthesized material compared to optimal values. The results can be used to develop technology for recycling large-tonnage waste from the chemical industry into luminescent materials.

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Does direct-seeded rice performance improve upon lime and phosphogypsum use?

Cited by 5 publications

References 33 publications

Agroecological Nutrient Management Strategy for Attaining Sustainable Rice Self-Sufficiency in Indonesia

Agroecological Nutrient Management Strategy for Attaining Sustainable Rice Self-Sufficiency in Indonesia

Eficiência bioeconômica da adubação mineral na cultura do sorgo

Studying the Process of Phosphogypsum Recycling into a Calcium Sulphide-Based Luminophor

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