Soil fertility management in indigenous homegardens of Central Amazonia, Brazil

Salim, Mateus Vieira da Cunha; Miller, Robert Pritchard; Ticona-Benavente, César Augusto; Leeuwen, J. van; Alfaia, Sônia Sena

doi:10.1007/s10457-017-0105-6

Cited by 11 publications

(15 citation statements)

References 30 publications

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“…The soil pH values obtained in this study for both depths are similar to soil pH obtained by (Salim et al 2018). The soil pH is slightly acidic and near neutral.…”

Section: Discussionsupporting

confidence: 86%

Phosphorus forms and distributions in soils under selected land use practices at the Federal University of Agriculture, Abeokuta, Ogun State, Nigeria

Oladoye

Busari

Abiodun

et al. 2021

ATR

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The forms and distributions of phosphorus were determined for four different land use practices in Federal University of Agriculture, Abeokuta, with the aim of evaluating the effects of land use and soil depth on soil physical and chemical properties, forms and distributions of phosphorus. The study was a 4×2 factorial experiment laid out in a Randomized Complete Block Design. Factor 1 was four different land use practices (Gmelina arborea, Tectona grandis, Leucaena leucocephala plantations and secondary forest), and Factor 2 was soil samples collected from two soil depths (0-30cm and 30-60cm). The soil pH, electrical conductivity, exchangeable bases (Na, K, Mg and Ca), particle size, organic carbon, total nitrogen, total phosphorus, inorganic phosphorus fractions (Al-P, Fe-P and Al-P) and available phosphorus analyses were carried out using standard procedures. Data collected from the laboratory analysis were subjected to two-way Analysis of Variance while the means among the treatments were separated using Duncan Multiple Range Test. The results showed that the soils had low total and available P contents. The soil under Leucaena leucocephala plantation had the highest total phosphorus (111.05mg kg-1), followed by Tectona grandis (97.63mgn kg-1), Gmelina arborea (96.41mg kg-1) and secondary forest (83.63mg kg-1). Total P decreased with depths (0-30cm and 30-60cm). Inorganic P-fractions were greatly influenced by soil properties such as soil pH, soil electrical conductivity, organic carbon, and soil particle size. The inorganic phosphorus fractions of the soils in all study area occurred generally in the following sequential order; Fe-P>Ca-P>Al-P. The highest inorganic phosphorus recorded in all in the study area was Fe-P, followed by Ca-P and Al-P. Al-P had the lowest content between the depths examined. Lower nutrient concentrations in soils under secondary forest within the depths were due to lower organic matter content, higher nutrient demand, nutrient immobilization by tree species and other flora present. P fractionation investigations are therefore recommended in soils under indigenous species plantation in order to provide adequate understanding of P status in the soils and fertilizer recommendation so as to improve productivity.

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“…The soil pH values obtained in this study for both depths are similar to soil pH obtained by (Salim et al 2018). The soil pH is slightly acidic and near neutral.…”

Section: Discussionsupporting

confidence: 86%

Phosphorus forms and distributions in soils under selected land use practices at the Federal University of Agriculture, Abeokuta, Ogun State, Nigeria

Oladoye

Busari

Abiodun

et al. 2021

ATR

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“…Soil under oak forest was the best in terms of enzyme activities, MO and P availability, followed by regularly manured apple orchard and organic farming. Salim et al (2018) compared the soil fertility of homegardens and secondary forests with that of primary forest. They measured less organic carbon content in soil from homegarden compared to soil from secondary and primary forests, but greater P, Mg and Ca as well as lower pH.…”

Section: Agroforestry Enhances Soil Nutrient Availabilitymentioning

confidence: 99%

Agroforestry for soil health

2018

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“…The relatively more alkaline soil pH values in farmlands located close to homestead areas (Fig. 2 and Table 6) was probably due to the addition of ash, which is common practice in southern Ethiopia (Bationo et al, 2007;Kiflu and Beyene, 2013;Bajigo and Tadesse, 2016;Negasa et al, 2017;Salim et al, 2018;Wolka et al, 2021). There was likely to have been a positive impact on plant growth, which in turn enhances carbon inputs to the soils.…”

Section: Tablementioning

confidence: 99%