This is the Study 2 of the project "Assessment of the Effectiveness of Carbonized Rice Hull (Activated and Un-activated) on Odor Emission, Bio-aerosol Concentration, and Fly Population of Some Agricultural Operations".

This study has two sequential activities:

1. Laboratory experiment - for purposes of manageability and minimizing efforts and costs, a laboratory experiment will be conducted first, then it will be scaled up using the result of the laboratory experiment. Since the treatments are based on two factors (type of CRH (activated or un-activated) and type of application (topical and mixed)), sequential testing will be employed. This means that one level of each treatment will be tested first and a sequence of more levels will be tried if initial results are found promising. Hence, the initial treatments which will be laid in RCBD with 3 replications are the following:

For purposes of consistency, the materials/substrates to be used in the trials will be the same.

 

2. Field testing - based on the results of laboratory testing, validation will be done in the organic fertilizer processing unit. The most promising level from each treatment category will be used as treatments, hence the following:

Parameters to be assessed:

 

Information on the effectiveness of CRH (activated and un-activated) in minimizing odor emissions, bio-aerosols and fly population in organic fertilizer processing