Alexander Tsarev
Mushroom industry

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Extend 1 phase from 15 to 21 days

Extend 1 phase from 15 to 21 days

27 января 2014

compost

Hi,

Can any one tell me what will the effect (quantitie and quality) be if the phase 1 compost is extended from 15 days to 21 days?

Regards
Riaan

rc.cloete

Comments

  1. Alexander Tsarev, 3 февраля 2014:

    Dear Riaan,

    Before talking about the duration of the first phase, let's try to define the objectives of this phase of composting.

    The first step is to get rid of readily available carbohydrates. This occurs at temperatures of +40...+55°C. In favorable conditions, compost stay at these temperatures for 30-40 hours is more than enough.

    Second step is decomposition of chicken manure. This occurs at temperatures of +55...+70°C. In favorable conditions 40-50 hours would be sufficient for this task.

    The third step is compound degradation products of poultry manure with lignin. This process begins at a temperature above 70°C. Optimum temperature of 75-85°C. The processing time from 100 to 140 hours.

    We will also have time for turning compost. As a result, the optimum time of the first phase will be 9-12 days. 9 days - in the summer, 12 - in the winter.

    Increasing the time of composting, especially at low and medium temperatures, will inevitably lead to a reduction in the volume of finished compost and a decrease in the yield of mushrooms. In addition, the compost with high ash content has a very weak activity, which affects the quality of mushrooms.

    N!B! All above mentioned timeframes are relevant only for fully-controlled, aerobic composting process. I no longer use obsolete technology with elements of anaerobic, unregulated process.

    Sincerely
    Alexander Tsarev


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