The quantity of fertilizer wanted by crops decreases as the organic issue material with the soil increases A farmer spreading manure to enhance soil fertility A fertilizer or fertiliser is any content of natural or synthetic origin that is definitely placed on soil or to plant tissues to supply plant https://npk-12-12-17-fertilizer-a05790.liberty-blog.com/37912836/not-known-facts-about-fertilizer-for-small-farmers-afghanistan