Drum Wood Chipper

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Straw is a general term for the stem and leaf (ears) portion of mature crops. It usually refers to the remaining parts of wheat, rice, corn, potatoes, rape, cotton, sugarcane and other crops (usually coarse grains) after harvesting the seeds. More than half of the products of photosynthesis of crops exist in straw, which is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, etc.