Possible Disadvantages 6. An application which is too heavy or too close to the roots of the plants, especially immature manure may cause burning ( actually a process of desiccation千燥by the chemical salts in the fertilizer)生粪咬苗 7. The nutrient concentration of organic manure can vary widely, and information on the amount of nutrients and the exact elements in an organic fertilizer is not readily available to the farmers▪ 6. An application which is too heavy or too close to the roots of the plants , especially immature manure may cause “burning” (actually a process of desiccation干燥 by the chemical salts in the fertilizer)生粪咬苗. ▪ 7. The nutrient concentration of organic manure can vary widely, and information on the amount of nutrients and the exact elements in an organic fertilizer is not readily available to the farmers. Possible Disadvantages