Chemical Characterization and Stability of Poultry Manure Tea and Its Influence on Phosphorus Sorption Indices of Tropical Soils

Abstract

This study characterized poultry manure extract (tea) and investigated the effects of integrated use of tea and the sequence of phosphorus (P) application [P added before (PBT), after (TBP), or jointly (PT) with tea] on P-sorption characteristics on acidic, alkaline, and neutral tropical soils. Results indicated that diluted tea contained 400 mg nitrogen, 155.80 mg potassium, and 10.48 mg P L −1 and the nutrients were greatest after 2 weeks. Soil P sorption conformed to the Freundlich model, indicating that soil P affinity was less than the aqueous solution at low solution P concentration. Freundlich index (k) in neutral soil was 78 and 94% greater than in acidic and alkaline soils, respectively. The lowest P sorption efficiency and greatest phosphate requirement were in acidic soil. Poultry manure tea could enhance P availability and reduce P fixation irrespective of the sequence of application of tea and P.

Compost Tea Quality and Fertility

“…Manure tea is another variant of the concept of compost tea, made from a solution that contains animal manure. Azeez et al [27] defined manure tea as the liquid extract from manure or a solution made by soaking manure in water in order to ease the decomposition process and enhance the release of nutrients. Although similar processes may be used, there is concern over the possible presence of pathogens in manure tea [28].…”

Production and use of homemade dry manure-based tea in fertigation systems in North Africa

“…Scientific investigations on HMT, especially of sheep manure origin, are needed Few scientific investigations seem to have been undertaken on dry manure-based tea, especially with regard to homemade preparations and those using organic matter of sheep manure origin. Some published studies have focused on compost tea produced with manure (Scheuerell and Mahaffee, 2002;Azeez et al, 2014;Ibijola et al, 2014), but these reports mainly concerned cattle or chicken manure. Scheuerell and Mahaffee (2000) found that composted chicken manure tea had a suppressive effect on powdery mildew.…”

Effect of mixed manure on selected chemical properties, and phosphorus adsorption characteristics of Vertisols in Haramaya district, eastern Ethiopia

“…The amount of P adsorbed by the soil was calculated from the differences between the amounts found in the filtrate and the initial amount in the solution using the following equation (Azeez et al., 2014): $$$$\begin{equation}Q = \left( {{C_{\mathrm{o}}} - {C_{\mathrm{e}}}} \right) \times \frac{V}{M}\end{equation}$$$$where Q (mg kg −1 ) is the amount/quantity of P adsorbed by the solid phase of soil, C o and C e (mg L −1 ) are the initial and equilibrium P concentrations, respectively, and V and M are the solution volume and mass of the soil used, respectively. $$$$\begin{equation}{\mathrm{P\;adsorption\;efficiency}} = \frac{{{C_{\mathrm{o}}} - {C_{\mathrm{e}}}}}{{{C_{\mathrm{e}}}}} \times 100\end{equation}$$$$…”

“…The amount of P adsorbed by the soil was calculated from the differences between the amounts found in the filtrate and the initial amount in the solution using the following equation (Azeez et al, 2014):…”