Many people do not realize to save on the cost of agricultural production, The example is like fertilizer, actually fertilizer can be saved, lo....., I've tried it and as a result the fertilizer I use can save up to 70-90%. Although it sounds very unlikely, the results of my observations in the field reality like that. What is your opinion.? Notes: I use additional fertilizers such as homemade organic fertilizers, it also helps with chemical fertilizers,