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我省历来水稻面积在四千万亩以上,平均单产700斤左右,按谷草比1:1计算,稻草总量达280亿斤。稻草含有丰富的有机物及各种作物所需的微量元素。据测定,水稻吸收利用的钾素,除收获的稻谷外,70％以上留在了稻草中。我省280亿斤稻草中所含钾素折合成标准钾肥可达252万吨,为我省每年施用化学钾肥的6倍以上。此外,稻草还含有35—40％的纤维素和半纤维素,还有氮、磷等其他养分。可见长期没有引起人们重视的稻草是我省的一项重要农业资源。
In our province, the rice area has always been more than 40 million mu, with an average yield of about 700 kg. According to a 1: 1 ratio of straw to straw, the total amount of straw reached 28 billion kilos. Straw is rich in organic compounds and trace elements required for various crops. According to the determination of potassium absorption and utilization of rice, in addition to the harvest of rice, more than 70% left in the straw. 28 million kilograms of straw contained in our province into the equivalent of potassium potash up to 2.52 million tons of standard fertilizer for our province more than 6 times the chemical fertilizer. In addition, straw also contains 35-40% of cellulose and hemicellulose, as well as nitrogen, phosphorus and other nutrients. It can be seen that straw, which has not attracted much attention for a long time, is an important agricultural resource in our province.