Pelletized compost can be a superior alternative to phosphate fertilizer compared to bulk compost

Manure is used as fertilizer and for soil amendment if handled appropriately, although it is the leading source of agricultural pollution if mismanaged. Because of the high water content, long-range haulage is uneconomical. Therefore, manure is mostly applied at high dose, close to the source, thereby diminishing its potential in soil amendment. Composting and pelletization facilitate manure exports, including storage, handling, and transport, for off-farm use and field application.

We showed that compost pelletization produces increased phosphorus (P)-use efficiency; however, further investigations are needed. Greenhouse pot experiments were conducted to assess pelletization effect on P-use efficiency by using various compost types—food waste, swine manure, cattle manure compost incorporated with poultry litter biochar, poultry litter, and cattle manure compost incorporated with poultry litter. Both bulk and pellet forms were used as fertilizer, as the sole source of P, in sequential cultivation of komatsuna (Brassica campestris L.) and buckwheat (Fagopyrum esculentum Moench). Pots with no P fertilizer and pots in which single superphosphate fertilizer was applied were used as negative and positive controls, respectively. In general, the plants took up significantly high amounts of P from the pelletized compost. Overall, the P-use efficiency did not differ significantly among the composts. The overall P recovery rate (difference between P taken up from the fertilized pots and that in the control pots) was 25.6% when using pelletized compost, which was comparable to that in the positive control; however, the rate was 13.4% when using bulk compost.



Copyright: © European Compost Network ECN e.V.
Source: Orbit 2014 (Juni 2014)
Pages: 0
Price: € 0,00
Autor: Yusuke Arakawa

Send Article Display article for free Comment article


These articles might be interesting:

Dekarbonisation und Energie-Erzeugung geht gleichzeitig. - Die Zukunft ist klimapositiv!
© Wasteconsult international (5/2017)
Die Pflanzenkohle und deren Herstellung durch Pyrolyse birgt das Potential, den gesamten vom Menschen verursachten Anstieg des Kohlenstoffs in der Atmosphäre zu kompensieren oder gar rückgängig zu machen.

Technosols manufacturing from sewage sludge to recover degraded soils
© European Compost Network ECN e.V. (6/2014)
The Technosols (TCNS) are “anthropogeomorphic material”, which includes those residues from anthropogenic activities, with similar characteristics to the geological and biogenic components of soils that can act as source material of them through the edaphogenesis processes.

Ecological and economic benefits of compost and digestate products
© European Compost Network ECN e.V. (6/2014)
European soils are systematically degrading. The European Soil Strategy urges more attention to the need for organic matter in soil: 45% of the soils in Europe show a lack of organic matter. This is also a problem in Flanders: almost 50% of the soils are below the target of organic matter. A range of measures is necessary for restoring the organic matter content: green manures, crop residues, organic fertilizer and soil improvers will all be needed. It is therefore of great importance that in the future sufficiently high amounts of quality composts and digestate products are produced, because these have shown to be excellent sources of stable organic matter and/or contribute to the soil fertility and food supply.

Effect of Intensity and Time of Aeration on Agrochemical Properties of Extracts from Vermicompost
© European Compost Network ECN e.V. (6/2014)
Vermicomposting is a completely environmentally friendly technology which converts biowaste to a value-added product. Extracts from vermicompost can be applied to plant surfaces and soils in ways not possible or economically feasible with solid vermicompost. The aim of this work was to determine the influence of aeration intensity and time of extraction on the agrochemical properties of aqueous extracts from two types of vermicomposts. Vermicomposts were made from horse manure (M) and apple pomace (P) waste.

Effects of different biochars and combined biochar and anaerobic digestate utilization on rye-grass and soil properties in laboratory model experiment
© European Compost Network ECN e.V. (6/2014)
Recycling of organic wastes and preparation of added value products such as biochar or anaerobic digestate are challenges for a sustainable agriculture. Utilization of biochars to improve soil fertility and to mitigate global climate change is a popular research area. Residual of anaerobic digestion can be used as soil amendment as well, since it contains high amount of different macro-, and micronutrients mainly in water soluble form. Combination of digestate and biochars can cause various interactions, between digestate-biochar and soil system.

Username:

Password:

 Keep me signed in

Forgot your password?