Cultivo de abóbora, suplementada com biofertilizante, em aléias de leguminosas arbóreas

Sampaio, Levi Ribeiro; Araújo, José Rg; Sousa, Eduardo Hs; Júnior, Altamiro Sl Ferraz; Araujo, Ana Ms

doi:10.1590/s0102-053620150000100007

Cited by 2 publications

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“…It protects plants by providing micronutrients, growth-promoting substances, and N 2 -fixing organisms. In experiments conducted in humid tropic soils [164], biofertilizer application reduced the damage caused by Spodoptera frugiperda in maize leaves and promoted a weight increase in pumpkins [165]. Organic management uses other strategies to optimize the nutritional status of crops such as mulching, no-tillage, intercropping and agroforestry systems.…”

Section: Alternative Local Resources For Organic Soil Managementmentioning

confidence: 99%

Improving Farming Practices for Sustainable Soil Use in the Humid Tropics and Rainforest Ecosystem Health

et al. 2016

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Abstract:Unsustainable farming practices such as shifting cultivation and slash-and-burn agriculture in the humid tropics threaten the preservation of the rainforest and the health of the local and global environment. In weathered soils prone to cohesion in humid tropic due to low Fe and carbon content and the enormous amounts of P that can be adsorbed, sustainable soil use is heavily dependent on the availability and efficient use of nutrients. This paper reviews the literature in the field and provides some insights about sustainable soil use in the humid tropics, mainly for the Brazilian Amazonia region. Careful management of organic matter and physical and chemical indicators is necessary to enhance root growth and nutrient uptake. To improve the rootability of the arable layer, a combination of gypsum with continuous mulching to increase the labile organic matter fraction responsible for the formation of a short-lived structure important for root growth is recommended, rather than tillage. Unlike mulching, mechanical disturbance via ploughing of Amazonian soils causes very rapid and permanent soil organic matter losses and often results in permanent recompaction and land degradation or anthropic savannization; thus, it should be avoided. Unlike in other regions, like southeast Brazil, saturating the soil solely with inorganic potassium and nitrogen soluble fertilizers is not recommended. Nutrient retention in the root zone can be enhanced if nutrients are added in a slow-release form and if biologically mediated processes are used for nutrient release, as occurs in green manure. Therefore, an alternative that favors using local resources to increase the supply of nutrients and offset processes that impair the efficiency of nutrient use must be pursued.

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Section: Alternative Local Resources For Organic Soil Managementmentioning

confidence: 99%

Improving Farming Practices for Sustainable Soil Use in the Humid Tropics and Rainforest Ecosystem Health

et al. 2016

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“…Implementing alleys as a form of land use in tropical regions is an option for managing degraded areas, especially sites where small farms prevail (SAMPAIO et al, 2015). There is still lack of information however on the nutrition of agricultural crops through green fertilization using leguminous trees in semi-arid regions, as well as on the best species to use and which parts of the plant best promote improvements in soil fertility.…”

Section: Introductionmentioning

confidence: 99%

Green Fertilization With Residues of Leguminous Trees for Cultivating Maize in Degraded Soil

et al. 2018

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The objective of this study was to evaluate the effects of the addition of parts of leguminous trees on the growth and nutrition of maize (Zea mays L.), as well as on the chemical attributes of a degraded soil, 65 days after applying the residues. The experiment was conducted in pots, in a randomized block design with ten treatments and four replicates. The evaluated treatments were: T1 - No residues of leguminous trees, T2 - Leaves of Mimosa caesalpiniifolia, T3 - Branches of Mimosa caesalpiniifolia, T4 - Leaves + branches of Mimosa caesalpiniifolia, T5 - Leaves of Mimosa hostilis, T6 - Branches of Mimosa hostilis, T7 - Leaves + branches of Mimosa hostilis, T8 - Leaves of Gliricidia sepium, T9 - Branches of Gliricidia sepium and T10 - Leaves + branches of Gliricidia sepium. Pots were filled with soil from a degraded area and residues were added in the form of green mass after sowing the maize. Residues of leguminous trees positively influenced maize growth at 65 days after application and favored the accumulation of nitrogen, phosphorus and potassium in the shoots. Green fertilizers improved soil chemical attributes at 65 days after application, especially nitrate-N (NO3 --N), ammonium-N (NH4 +-N), total inorganic N (NO3 --N + NH4 +-N) and K, demonstrating that these species are good options for recovering degraded areas in the semi-arid region of Ceará.

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Cultivo de abóbora, suplementada com biofertilizante, em aléias de leguminosas arbóreas

Abstract: Pumpkin cultivation, supplemented with biofertilizer, in alleys cropping of leguminous trees

Cited by 2 publications

References 0 publications

Improving Farming Practices for Sustainable Soil Use in the Humid Tropics and Rainforest Ecosystem Health

Improving Farming Practices for Sustainable Soil Use in the Humid Tropics and Rainforest Ecosystem Health

Green Fertilization With Residues of Leguminous Trees for Cultivating Maize in Degraded Soil

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