Results 31 to 40 of about 874,863 (322)

The Influence of Total Solid Contents on Biogas Yield from Cattle Manure Using Fluid Rumen Inoculum [PDF]

open access: yes, 2010
Problem statement: Anaerobic digestion was a biological method used to convert organic wastes into biogas and a stable product for land application without adverse environmental effects.
Seno, Johari   +3 more
core   +1 more source

Nitrogen and Phosphorus Replacement Value of Three Representative Livestock Manures Applied to Summer Maize in the North China Plain

open access: yesAgronomy, 2022
Land application of livestock manure may reduce the use of mineral fertilizers and alleviate the environmental degradation associated with mineral fertilizers application.
Jiukai Xu   +6 more
doaj   +1 more source

Compostability of Treatment Sludge and Cattle Manure

open access: yesKSCE Journal of Civil Engineering, 2021
In this study, the compostability of treatment sludge sourced from the food industry (TS) and cattle manure (CM) was investigated. For this purpose, sunflower stalks (SS) were added as a bulking agent and composting experiments were performed. Different mixtures (R1, R2, R3) were prepared in order to determine the individual and co-compostability of ...
Selnur Ucaroglu, Busra Ozbek
openaire   +2 more sources

Cattle Manure Bioconversion Effect on the Availability of Nitrogen, Phosphorus, and Potassium in Soil

open access: yesRevista Brasileira de Ciência do Solo, 2018
The efficiency index (EI) refers to the ratio of nutrients mineralized/made available in the soil to the total amount of nutrients added by organic fertilizer. Therefore, understanding the EI is essential for recommendation of organic fertilization.
Daniel Pazzini Eckhardt   +6 more
doaj   +1 more source

The Use of Straw Pellets with the Addition of Crude Glycerin for the Intensification of Biogas Production during the Anaerobic Fermentation of Cow Manure [PDF]

open access: yesProblems of the Regional Energetics
Cow manure is a good substrate for producing biogas, since it already contains methanogens. Almost its only drawback is the low productivity of biogas output.
Polishchuk V.   +7 more
doaj   +1 more source

Soil chemical attributes under combinations of organic fertilizing and water salinity

open access: yesPesquisa Agropecuária Tropical, 2023
The use of brackish water causes chemical changes in cultivated soils. It is therefore necessary to apply strategies that can minimize its negative impacts, such as the use of organic fertilizers.
Márcio Henrique da Costa Freire   +4 more
doaj   +1 more source

Equations to predict nitrogen outputs in manure, urine and faeces from beef cattle fed diets with contrasting crude protein concentration [PDF]

open access: yes, 2021
Accurately predicting nitrogen (N) outputs in manure, urine and faeces from beef cattle is crucial for the realistic assessment of the environmental footprint of beef production and the development of sustainable N mitigation strategies. This study aimed
Yan, Tianhai   +11 more
core   +1 more source

Advances in Biorefinery of Cattle Manure for Value-Added Products

open access: yesFermentation
A large amount of cattle manure is generated in the US every year, creating challenges for ecosystem sustainability while offering opportunities for value-added products through biorefinery.
Wachiranon Chuenchart   +3 more
doaj   +1 more source

Soil biological quality of grassland fertilized with adjusted cattle manure slurries in comparison with organic and inorganic fertilizers [PDF]

open access: yes, 2009
We studied the effect of five fertilizers (including two adjusted manure slurries) and an untreated control on soil biota and explored the effect on the ecosystem services they provided.
Bloem, J.   +7 more
core   +1 more source

Effects of tied ridges and different cattle manure application rates on soil moisture and rainfall use efficiency on maize growth and yield in semi-arid regions of Zimbabwe

open access: yesTechnology in Agronomy
A 3-year rainfed field experiment was carried out to determine the effects of combined tied ridges and cattle manure application rates on maize productivity. The experiment was laid as a 2 × 4 factorial in a completely randomized block design (CRBD) with
Cosmas Parwada   +4 more
doaj   +1 more source

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