Table 7. Effects of probiotics, probiotics + fulvic acid, and fulvic acid at 1 litter per ton of compost on ammonia production of compost before and after incubating¹⁾

Item	Before incubating			After incubating			SEM	p-value
Item	Probiotics	Probiotics + fulvic acid	Fulvic acid	Probiotics	Probiotics + fulvic acid	Fulvic acid	SEM	p-value
1^st	57	32	17	10	8	3	-	-
2^nd	69	47	24	8	6	4	-	-
3^rd	75	36	17	10	7	3	-	-
4^th	65	43	12	7	5	3	-	-
5^th	54	29	9	9	6	2	-	-
6^th	43	21	10	8	8	4	-	-
7^th	37	19	7	6	4	2	-	-
8^th	32	19	8	5	3	1	-	-
Mean	54^a	31^b	13^c	8^cd	6^cd	3^d	2	< 0.001

The probiotics and fulvic acid products were diluted to 0.1% using water. A complex odor sensor was used to measure the ammonia production.
Within a column means without a common superscript differ (p < 0.05).