Studies on Growing Edible Fungi on Improved Straw from a Dual Use Rice Cultivar

<正> Every year 500 million tons of rice (Oryza sativa L.) straw are generated worldwide, which was almost equal to the production of rice grain. Most straw is not recovered due to the poor quality, high cost or complicated treatment operations. Through genetic improvements, a rice cultivar ’201’ was developed with both high nutrient content in straw and high grain yield. The results of 15N tracer experiments showed that15 N of urea could be effectively transformed into straw protein of ’ 201’ and the recovery rate of 15N in the straw of ’201’ was 104% higher than that of the check ’TY 63’. The straw protein of ’201’ could be effectively