PBST全生物降解地膜在辽宁营口成功应用,实现生态与效益双赢
中国石化在辽宁营口举行万亩水稻膜肥机一体化项目成果发布会,其自主知识产权的PBST全生物降解地膜成功应用,实现节水节肥、零除草剂、增产增收及生态环保。
AI-generated summary
中国石化开发了具有完全自主知识产权的全生物降解材料PBST,并在多个省份开展大规模示范应用。
10月13日,记者从中国石化新闻办获悉,以“央地赋能良田,科技守护粮安”为主题的营口万亩水稻膜肥机一体化项目成果发布会在辽宁营口举行。中国石化完全自主知识产权的PBST全生物降解地膜在项目中成功应用,与传统种植模式相比,实现节水30%以上、节肥20%以上、零除草剂,提高了肥料利用率,减少了稻田甲烷等温室气体排放,水稻亩均增产10%以上,农户亩均综合收益提升200元以上,实现了生态与效益双赢。
PBST(聚丁二酸/对苯二甲酸丁二醇酯)是中国石化所属北京化工研究院开发出的具有完全自主知识产权的全生物降解材料,申请专利超百件。PBST地膜力学强度高,在抗紫外线、水汽阻隔等方面表现较其他全生物降解材料更为优异,1至3年内可完全降解成水、二氧化碳和微量矿化物等无害物质,适应不同场景需求,降解周期灵活可调,已在地膜、膜袋、发泡包装等领域应用。
在营口项目中,PBST地膜在水稻生育期主要发挥升积温和抑草作用,完成上述功能后,在适宜的田间环境条件下逐渐进入生物降解过程。项目通过用研产销密切协作创新“新材料+新农艺+新农机”技术体系,配套覆膜插秧一体机实现铺膜、压膜、插秧机械化集成,使PBST地膜成为完整水稻生产方式中的组成环节。
中国石化加快PBST材料研发应用,2025年3月在海南炼化建成全球首套PBST工业化装置并投产。2025年PBST在新疆乌苏万亩棉田、岳普湖4000亩玉米田应用成功,产量与普通地膜相当,为根治聚乙烯地膜残留污染提供了可行路径。2026年,PBST地膜在新疆南北疆、甘肃东乡、安徽颍上、广东雷州、海南昌江等地开展了总计约18万亩的大规模示范应用,效果良好。
下一步,中国石化产销研团队将进一步开展水稻覆膜种植多区域、多品种、大规模、多年连续试验示范,完善技术标准和作业规范,逐步形成寒地水稻绿色种植生态环保增收增效“营口模式”,为东北乃至全国水稻绿色生产提质增收提供借鉴。
AI outlook — possibilities, not facts
开展水稻覆膜种植多区域多品种多年连续试验示范
Very likely · Within months
The domestic meat market has seen a differentiated trend in which pork prices continue to fluctuate at low levels and beef prices steadily rise. The root cause is that the consumption structure of residents has shifted from incremental satisfaction to quality improvement and diversification, as well as the supply cycle misalignment between excess pig production capacity and shrinking beef supply. Data show that per capita pork consumption will fall by 12.8% from 2023 to 2025, and beef prices will rise due to the dual impact of import quota policies and declining domestic production. Industrial losses and regulatory needs coexist. In the future, it is necessary to promote high-quality transformation of the meat industry through precise production capacity regulation and policy coordination.

Agriculture Minister Chen Junji said that food waste pig farming will be completely banned from New Year's Day next year, and the complete ban will definitely go on schedule. At present, 4 counties and cities have banned it in advance, and illegal use still occurs. In order to assist in the transformation, the Animal Research Institute has developed an improved formula for black pig feed, and construction of Miaoli circulating raw material feed plants has started, and at least three will be completed before the end of the year.

The latest agricultural situation dispatch from the Ministry of Agriculture and Rural Affairs shows that the national autumn grain harvest progress is over 60%, the Huanghuaihai and northwest regions are over 70%, the Northeast and the middle and lower reaches of the Yangtze River are over half, and South China is nearly 30%. The Northeastern region accounts for nearly 40% of the country's autumn grain output, and weather conditions are favorable. The soybean yield per unit area of Heilongjiang Beidahuang 856 Farm reached 683.63 catties/mu, setting a new record. 100,000 sets of agricultural machinery have been invested in the Huang-Huai-Hai region, 720,000 acres of rice are gradually maturing in Yingshang, Anhui, and the rice yield per mu in Lanshan District, Linyi, Shandong has increased by 10% compared with last year. The weather in the middle and lower reaches of the Yangtze River is fine, which is conducive to the maturity of late rice. The disaster in the southwest is mild, and the autumn grain growth in the northwest is good. The autumn harvest is progressing smoothly, slightly faster than normal, and another bumper harvest is expected.

The Ministry of Agriculture's business report pointed out that Taiwanese pineapples are expected to be exported to the United States next year, complying with the draft quarantine conditions announced by the United States in March; golden diamond and mango pineapples are the main export varieties, and about 50 hectares of orchards have been planted. It was also mentioned that pineapple exports to Japan this year reached 15,700 tons, and exports to Canada, South Korea, and Australia have grown significantly.

The Ministry of Agriculture and Rural Affairs recently announced the eighth batch of China's important agricultural cultural heritage list, and the peony cultural system of Luoyang, Henan and the Maojian tea cultural system of Xinyang were selected. Experts point out that the key to realizing the dynamic inheritance of agricultural cultural heritage and the transformation of economic value is through the integration of agriculture, culture and tourism, technology empowerment and the improvement of interest connection mechanisms.
The 2026 National Agricultural Products Production and Marketing Conference (Northern Area) will be held in Linyi, Shandong from October 22 to 25. The conference brought together more than 1,200 suppliers and more than 1,500 buyers, aiming to promote the connection between production and sales and help rural revitalization.