Soil Acidity and Liming in Tropical Fruit Orchards

Natale, William; Rozane, Danilo Eduardo; Parent, Léon‐Étienne; Parent, Léon E.

doi:10.5772/53345

Cited by 10 publications

(7 citation statements)

References 22 publications

(24 reference statements)

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“…However, there have been warnings about soil degradation in the fruit orchards wherein raised bed farming was applied [ 1 ]. Raised bed systems are constructed 1.5–2 m higher than the original ground surface, which may lead to leaching out of exchangeable cations or soil nutrients (available nitrogen (N) and potassium (P)) from the surface of colloids by rainwater during the wet season as well as irrigation during the dry season [ 2 ]. According to Quang et al [ 3 ], soil compaction was strongly correlated with the aging of the raised beds.…”

Section: Introductionmentioning

confidence: 99%

Soil Quality and Pomelo Productivity as Affected by Chicken Manure and Cow Dung

Dang¹,

Ngoc²,

Hung³

2021

The Scientific World Journal

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Fruit orchards in the Vietnamese Mekong Delta (VMD) are severely degraded due to many factors, such as low organic matter content, soil acidification, and poor soil management. Organic manures are considered to be a soil conservation measure that decreases soil degradation and acidity. This study aimed to evaluate the impacts of soil organic amendments on the improvement of soil fertility and pomelo productivity. Two soil amendments, namely, chicken manure (CM) and cow dung (CD), were investigated for a period of three years at three pomelo orchards. The soil quality was assessed in two depths (0–20 and 20–50 cm), including the soil pH, electrical conductivity (EC), total nitrogen (Ntot), available phosphorus (Pavail), soil organic matter (SOM), bulk density (BD), and exchangeable cations (Ca, Mg, and K). The results indicated that CD and CM improved soil fertility in topsoil layer (0–20 cm) due to an increase in soil pH, SOM, exchangeable Ca, Ntot, and Pavail. In addition, soil BD significantly reduced after CD and CM were supplied in the three consecutive years of study. The soil quality properties that significantly affected pomelo yield were SOM, Ntot, Pavail, and soil BD. Thus, these soil qualities may be considered as key factors for determining and assessing soil quality in fruit orchards in the VMD. More studies on the influence of organic manures on nutrient uptake and pomelo fruit quality are warranted.

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Section: Introductionmentioning

confidence: 99%

Soil Quality and Pomelo Productivity as Affected by Chicken Manure and Cow Dung

Dang¹,

Ngoc²,

Hung³

2021

The Scientific World Journal

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“…Ordinary superphosphate provided Ca and S in mineral fertilization in amounts comparable to or higher than guava waste, but Mg and micronutrients were in deficit with the mineral fertilization (RM) and the control, hence potentially affecting soil Mg stocks. The pH increased from 5.0 in 2006 to 5.4–6.2 in 2010 in the 0–20 cm layer but was stationary in the 0.2–0.4 m layer, indicating reduction of potential aluminum toxicity (Natale et al, 2012 ).…”

Section: Resultsmentioning

confidence: 99%

“…Perennial fruit-bearing plants such as guava require conducting long-term experiments to document nutrient issues due to the continuous nutrient supply and removal and to internal nutrient cycling (Natale et al, 2012 ). The trial was conducted between 2006 and 2010 in 8 year old “Paluma” guava orchard at Vista Alegre do Alto, Sao Paulo state, 21 08′S and 48 30′W and 603 m in altitude.…”

Section: Methodsmentioning

confidence: 99%

Guava Waste to Sustain Guava (Psidium guajava) Agroecosystem: Nutrient “Balance” Concepts

et al. 2016

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The Brazilian guava processing industry generates 5.5 M Mg guava waste year−1 that could be recycled sustainably in guava agro-ecosystems as slow-release fertilizer. Our objectives were to elaborate nutrient budgets and to diagnose soil, foliar, and fruit nutrient balances in guava orchards fertilized with guava waste. We hypothesized that (1) guava waste are balanced fertilizer sources that can sustain crop yield and soil nutrient stocks, and (2) guava agroecosystems remain productive within narrow ranges of nutrient balances. A 6-year experiment was conducted in 8-year old guava orchard applying 0–9–18–27–36 Mg ha−1 guava waste (dry mass basis) and the locally recommended mineral fertilization. Nutrient budgets were compiled as balance sheets. Foliar and fruit nutrient balances were computed as isometric log ratios to avoid data redundancy or resonance due to nutrient interactions and the closure to measurement unit. The N, P, and several other nutrients were applied in excess of crop removal while K was in deficit whatever the guava waste treatment. The foliar diagnostic accuracy reached 93% using isometric log ratios and knn classification, generating reliable foliar nutrient and concentration ranges at high yield level. The plant mined the soil K reserves without any significant effect on fruit yield and foliar nutrient balances involving K. High guava productivity can be reached at lower soil test K and P values than thought before. Parsimonious dosage of fresh guava waste should be supplemented with mineral K fertilizers to recycle guava waste sustainably in guava agroecosystems. Brazilian growers can benefit from this research by lowering soil test P and K threshold values to avoid over-fertilization and using fresh guava waste supplemented with mineral fertilizers, especially K. Because yield was negatively correlated with fruit acidity and Brix index, balanced plant nutrition and fertilization diagnosis will have to consider not only fruit yield targets but also fruit quality to meet requirements for guava processing.

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“…Nota-se que as características químicas do solo na área da própria instituição podem sofrer algumas alterações, que foram provocados pela ação da natureza antrópica ao longo do tempo. Natale et al, (2012) retratam que a acidez do solo é um dos fatores que mais interferem na produtividade agrícola, em especial nas regiões tropicais, pois podem ser ácidos, devido à própria pobreza em bases do material de origem, ou aos processos de formações que favorecem a remoção ou lavagem de elementos básicos como K, Ca, Mg, Na e outros.…”

Section: Figura 4 -Curvas De Calibração Do H + Al Em Solounclassified

Influência De Dosagens De Calcário Em Um Latossolo Vermelho-Amarelo Distrófico No Sul Do Tocantins, Brasil

Leite¹,

Melo²,

Oliveira³

et al. 2018

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RESUMO A maioria dos solos brasileiros, de maneira especial aqueles em que estão ocorrendo a expansão da agricultura, como os solos em regiões de Cerrados, apresentam características de acidez, toxidez de Al e baixos níveis de Ca e Mg. Em especial, os solos sob Cerrado Tocantinense, têm indicado problemas em relação com a baixa fertilidade, exigindo aplicações de calcário e fertilizantes para utilização agrícola. Os mesmos apresentam índices de pH menores que 5,5 com alta concentração de Al e Fe, e com deficiência nos teores de P, K, Ca e Mg. Assim, objetivou-se estudar a relação dos efeitos da calagem na fertilidade do solo em diferente dosagem, na correção do pH e no nível de toxidez de Al. O experimento foi conduzido em um Latossolo Vermelho-Amarelo Distrófico, na Universidade Federal do Tocantins, campus de Gurupi. As doses empregadas de Carbonato de Cálcio PA foram: 0,0; 1,5; 3,0; 4,5 e 6,0 ton ha-1. A cada 10 dias foram realizadas avaliações em laboratório do nível do pH em água. Verificou-se que aplicação do carbonato de Cálcio favoreceu a elevação do pH, diminuindo os teores de Al e Fe, e elevaram os teores de P, K e Mg.

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Soil Acidity and Liming in Tropical Fruit Orchards

Cited by 10 publications

References 22 publications

Soil Quality and Pomelo Productivity as Affected by Chicken Manure and Cow Dung

Soil Quality and Pomelo Productivity as Affected by Chicken Manure and Cow Dung

Guava Waste to Sustain Guava (Psidium guajava) Agroecosystem: Nutrient “Balance” Concepts

Influência De Dosagens De Calcário Em Um Latossolo Vermelho-Amarelo Distrófico No Sul Do Tocantins, Brasil

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