作者：卓辛卓扁 来源：原创 发布日期：08-23
A | 8月25日消息，中科院地球环境研究所联合多家国外机构完成一项农业研究，用粪肥合理替代化肥，既能改良土壤，还可以提升粮食产量。 一直只施化肥，时间久了土壤有机质会被消耗，土壤里面各类养分比例失衡，地里微生物也没法好好发挥作用。 研究团队整理全球179个站点，一共710组田间观测数据，发现粪肥可以把土壤碳、氮、磷分别提升27.8%、24.4%、29.2%，让土地肥力慢慢恢复过来。 按照测算，如果在条件合适的地区推广粪肥替代，全球每年可以多产出4.82亿吨到7.08亿吨谷物，土壤碳氮磷储备也能提升26%至32，增产和养土两件事可以同时实现。 但它并不是万能解法，不管时间还是地域，都有硬性条件。从时间上看，持续施用粪肥之后，农作物增产效果大约19年就会摸到天花板，可土壤养分积累要差不多30年才会完全饱和。
B | 土壤里面磷元素增幅超过72.4%之后，增产效果就会明显变弱，氮磷比下降超过26%，反而有减产风险。 地域上面限制同样不小，想要拿到双赢效果，年均降水需要落在1119毫米至1237毫米区间，同时土壤本身碳氮比也要处在合适范围。
太干旱的地方，粪肥很难分解；雨水太多，养分又会被雨水冲走，这两种情况都可能出现粮食、土壤双双受损的局面。 简单来说，粪肥替代化肥是很好的农业思路，但不能直接照搬到处乱用。 (ECNS) -- A shipment of 23.5 metric tons of pepino melons from Shizong County, Yunnan Province, has been exported to Malaysia after passing inspections by Qujing Customs. This marks the first time the county's signature fruit has entered the overseas market. Historically reliant on the coal industry, Shizong has successfully transitioned to green agriculture. The local climate, which features high altitude, abundant sunlight, and large temperature variations between day and night, makes the region ideal for growing high quality pepino melons. To help local growers access international markets, Qujing Customs provided targeted guidance to align orchards with ASEAN standards, assisting them in securing export registration. Local producers now plan to further expand their footprint in the ASEAN market. Driven by such agricultural exports, Qujing Customs oversaw the export of 16,000 metric tons of agricultural products worth 210 million yuan (about $31 million) in the first seven months of this year, representing year-on-year increases of 73% and 57% respectively. (By Intern Lin Qiaochu, Zhang Dongfang) 
。要结合当地降水、土壤情况，把控施用时长和用量，选对适用区域，才能真正做到土地变肥，粮食增产。
▲粪肥替代化肥改善土壤养分平衡并提升作物产量概念图
Current article:http://bf7o3.shouyouxumianpouluanteng.shop/list_zuv3/fueiv.html
Published on:08:00:51