Growth and production of dwarf coconut in saline-sodic soil under doses of potassium sulfate

Pereira, Tiago de Araújo; Souto, Lauter Silva; Sá, Francisco Vaniés da Silva; Filho, João de Andrade Dutra; Souza, Tarso Moreno Alves de; Paiva, Emanoela Pereira de

doi:10.1590/1807-1929/agriambi.v21n7p454-458

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…Highest contents were found in shrimp farming waste; therefore, its use may lead to Na accumulation in the soil and cause negative effects on chemical and physical properties and on its biological processes (Sanchéz et al, 2017). In addition, excess salinity in the soil can compromise the availability of water and nutrients to plants, directly affect the osmotic potential of the soil solution and, additionally, high level of exchangeable Na may lead to degradation of soil structure, dispersion of clays and toxicity to plants (Pereira et al, 2017 , respectively ( Table 2). The treatment T1 (shrimp farming waste) showed the lowest C content, whereas T2, T3, T4 and T5 showed higher values, and the highest C content was found in T5 (waste from guava processing agro-industry).…”

Section: Chemical Composition Analysis Of the Organic Wastesmentioning

confidence: 99%

Characterization of Organic Wastes and Effects of Their Application on the Soil

Oliveira¹,

Costa²,

Souza³

et al. 2018

JAS

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The agricultural farming activities generate organic waste whose indiscriminate deposition can be prejudicial to the environment. However, careful application of these wastes as organic fertilizers it is a possibility to improve soil fertility. This study aimed to confirm the hypotheses that organic wastes produced in various production chains in the semi-arid region of Ceará have contents of nutrients that give them potential as organic fertilizers and, since they are used as organic fertilizers, these residues improve the chemical soil attributes. Nutrient contents were determined at the laboratory and then the wastes were placed in decomposition bags and applied in a Fluvic Neosol. Soil samples were collected in the 0-0.10 m layer 90 days after wastes were applied. The residues presented nutrient contents that allow their use as organic fertilizers, except the shrimp farming residue that presented sodium content above that allowed by legislation, resulting also in higher element contents in the soil. In addition, the shrimp farming showed the lowest organic carbon content in relation to others chemical elements. The residues of the poultry industry and the compound made with residues of small ruminants presented the highest of nitrogen and phosphorus levels. The carnauba residue was associated with phosphorus immobilization because it presented C/P ratio higher than 300.

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Section: Chemical Composition Analysis Of the Organic Wastesmentioning

confidence: 99%

Characterization of Organic Wastes and Effects of Their Application on the Soil

Oliveira¹,

Costa²,

Souza³

et al. 2018

JAS

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“…On the other hand, GCSL contains high concentration of potassium, a nutrient required in greater quantity in the dwarf coconut cultivation, due to the beneficial effects on growth and fruit production (PEREIRA et al, 2017). Therefore, this residue has the potential to totally or partially replace the mineral fertilizer, potassium chloride, which is the source of K 2 O most commonly used in coconut cultivation.…”

Section: Introductionmentioning

confidence: 99%

Potential use of green coconut shell liquid in young dwarf coconut plants

Andrade,

Artur,

Taniguchi

et al. 2024

RCA

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The pressing of green coconut shell, aiming at the production of powder or fiber, used as raw material by the industry, generates large amounts of the green coconut shell liquid (GCSL), whose incorrect disposal results in environmental impacts. This study evaluated the potential use of GCSL as a source of potassium for young dwarf coconut plants. The experiment was carried out in pots, in a completely randomized design, applying seven treatments, comprising five doses of GCSL, which corresponded to 0% (G 0 ), 50% (G 50 ), 100% (G 100 ), 150% (G 150 ) and 200% (G 200 ) of the need for K 2 O of the plants, a treatment with mineral fertilizer, corresponding to 100% of K 2 O supplied as KCl (K 100 ), and another containing 50% of K 2 O as KCl and 50% as GCSL (G 50 + K 50 ), with five replicates. One hundred and twenty days after transplanting the seedlings, soil chemical attributes as well as growth and nutritional status of dwarf coconut plants were evaluated. Increase in GCSL doses altered soil fertility and reduced the percentage of live leaves of dwarf coconut. The G 50 + K 50 treatment did not differ from K 100 for all variables of growth, except for % of live leaves, indicating the possibility of replacing 50% of the K 2 O dose recommended for the first year of dwarf coconut cultivation with GCSL.

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“…Whole plant parts can utilize those roles in the flesh, leaves, trees, and roots. The fruit can produce after about 6 to 10 years (Pereira et al, 2017;Kaur et al, 2019;Nzekwe and Nzekwe, 2021). This commodity has contributed to Indonesian non-oil and gas exports.…”

Section: Introductionmentioning

confidence: 99%

Demand Analysis of Indonesia’s Coconut Crude Oil in Germany

Ximenes¹,

Nurmalina²,

Rifin³

2021

R. Econ. and Finan.

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Despite Indonesia being the world's largest coconut-producing country, the competitive position of coconut crude oil (CCO) is still weak in the international market. Indonesia should determine a potential market that plays a significant role in the coconut oil industry. The market share and elasticity of demand for Indonesian CCO in the primary market are controvertible in its policies. This study aimed to analyze the Indonesian competitive position in Germany -using the LA/AIDS model. Monthly time series data spanned values and quantities of CCO imported by Germany from 2004 to 2019. The main findings are that Indonesia had a strong market position. As a result of higher own-price elasticity, Indonesia is more sensitive to its price change. There is a weak competitive relationship between Indonesia and the Philippines since the cross-price elasticity is inelastic. Moreover, quantity demand for Indonesia will be higher due to the higher expenditure elasticity.

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Growth and production of dwarf coconut in saline-sodic soil under doses of potassium sulfate

Cited by 5 publications

References 13 publications

Characterization of Organic Wastes and Effects of Their Application on the Soil

Characterization of Organic Wastes and Effects of Their Application on the Soil

Potential use of green coconut shell liquid in young dwarf coconut plants

Demand Analysis of Indonesia’s Coconut Crude Oil in Germany

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