宝山区是本市郊区重要的副食品基地之一。近年来,随着大中型禽畜场的兴建,在为城市居民提供大量副食品的同时,由于对禽畜粪尿未能及时妥善处理,不仅浪费了宝贵的有机肥资源,更严重的是,造成了对农业环境的污染。因此,如何充分利 Baoshan District is one of the important non-staple food bases in the suburbs of this city. In recent years, along with the construction of large and medium-sized livestock farms, while providing a large number of non-staple food products to urban residents, not only was the precious organic fertilizer resources wasted due to the improper handling of livestock and poultry manures, but more seriously, Resulting in the pollution of the agricultural environment. Therefore, how to fully profit