稻草,通常被当作生产稻谷后的废弃之物,其实是一种宝贵的生物资源。据测定,水稻贮存的太阳光能,有一半以上蕴藏于稻草中,每斤稻草理论含热量接近一斤煤的热量。稻草又是一仲优质有机肥料,含氮0.55％、磷0.27％、钾1.95％,有机质70％。稻草还是传统的牲畜饲料。 Straw, commonly used as a waste product after the production of rice, is actually a valuable biological resource. It has been determined that more than half of the solar energy stored in rice is stored in the straw, and the theoretical calorie content per kilogram of straw is close to that of a kilogram of coal. Straw is another high-quality organic fertilizer, containing 0.55% nitrogen, phosphorus 0.27%, potassium 1.95%, organic matter 70%. Straw is also a traditional livestock feed.