Origin of advices	Empty packages
Origin of advices	Abandon	Burying	Incineration	Re-used	Total
Association	−1	+0	+24	−1	1
Agronomist	+0	+3	+1	−2	8
Agricultural technician	−1	−1	+51	−3	4
Sellers	+0	+0	−1	+1	61
Other farmers	+2	+0	−2	−1	13
No advice	+0	−1	−3	+1	16
Total	50	12	8	33	103