Use the suggested guidelines and knowledge with farmers in the use of chemical fertilizer in quantities that are not too much, or reduce the amount of chemical fertilizer. Example The organic fertilizer combined with chemical fertilizers.
User guide and educate farmers to use chemical fertilizers in quantities not too much fertilizer or reduce an organic fertilizer mixed with chemical fertilizers.
Use the guide and education to farmers in the use of chemical fertilizers in too much or reduce the amount of chemical fertilizer, for example, the organic fertilizer combined with chemical fertilizer.