Fate of Compost Nutrients as Affected by Co-Composting of Chicken and Swine Manures

2014 ◽  
Vol 28 (2) ◽  
pp. 177-184 ◽  
Author(s):  
Gbolabo A. Ogunwande ◽  
Lawrence A.O. Ogunjimi ◽  
James A. Osunade

Abstract Passive aeration co-composting using four mixtures of chicken manure and swine manure at 1:0, 1:1, 3:7 and 0:1 with sawdust and rice husk was carried out to study the effects of co-composting on the physicochemical properties of the organic materials. The experiment, which lasted 66 days, was carried out in bins equipped with inverted T aeration pipes. The results showed that nutrient losses decreased as the proportion of chicken manure in the mixtures decreased for saw dust and rice husk treatments. This indicates better nutrientst conservation during composting in swine than chicken manure. Manure mixtures with rice husk had higher pile temperatures (> 55°C), total carbon and total nitrogen losses, while manure mixtures with saw dust had higher total phosphorus loss and carbon to nitrogen ratio. Composts with rice husk demonstrated the ability to reach maturity faster by the rate of drop of the carbon to nitrogen ratio.

Author(s):  
Monika Vítězová ◽  
Pavel Mach ◽  
Tomáš Vítěz ◽  
Tomáš Lošák

Composting represents one of the technologies of processing of biodegradable municipal waste. Samples collected from composting plants were analyzed chemically, physically and microbiologically. The pH of bio waste samples increased from 6.5 to 8.6. The total carbon to nitrogen ratio in samples of bio waste decreased, in the course of composting, from 40:1 up to the value of 25:1 while the total nitrogen to phosphorus ratio decreased from 10:1 up to 8:1. Indicator groups of microorganisms were monitored in compost samples. Representatives of Enterobacter genus, namely E. cloacae and E. aerogenes were identified in the samples on the basis of biochemical tests. The bacterial groups needed for efficient composting, i.e. order Bacillales and Actinomycetales, were present in appreciable amounts.


2020 ◽  
pp. 65-72
Author(s):  
Н.П. Чекаев ◽  
Е.Г. Куликова ◽  
А.В. Леснов

В статье показаны результаты трехлетних полевых опытов по изучению влияния разных доз куриного помета и известкового мелиоранта на физико-химические свойства чернозема выщелоченного и урожайность возделываемых сельскохозяйственных культур на опытных участках. В результате проведенных исследований на опытном поле ФГБОУ ВО Пензенский ГАУ (Пензенская область, Мокшанский район) было выявлено, что при внесении разных доз куриного помета в последействии на второй и третий год наблюдается увеличение кислотности. Использование известкового мелиоранта снижает подкисление и повышает эффективность внесенных доз куриного помета. Применение доз куриного помета от 2 до 10 т/га из расчета на сухое вещество положительно влияли на урожайность зерна как первой культуры после внесения, так второй и третьей. Наибольшую продуктивность исследуемых культур наблюдали на вариантах с внесением от 6 до 10 т/га помета. На фоне известкования эффективность их применения увеличивалась. The article shows the results of three-year field experiments to study the effect of different doses of chicken manure and lime ameliorant on the physicochemical properties of leached chernozem and the yield of cultivated crops in the experimental plots. The studies were carried out on the experimental field of Penza State Agrarian University (Penza Region, Mokshansky District). As a result of, it was revealed that when different doses of chicken manure were applied, an aftereffect increase in acidity was observed in the second and third years. The use of a lime ameliorant reduces acidification and increases the effectiveness of the applied doses of chicken manure. The use of doses of chicken manure from 2 to 10 t/ha (dry matter) had a positive effect on the grain yield of both the first crop after application, and the second and third. The highest productivity of the studied crops was observed in the variants with the introduction of 6 to 10 t/ha of manure. Against the background of liming, the effectiveness of their application increased.


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