黄河流域盐碱地“变身”丰产田 稻蟹共生蹚出致富新“稻”路

Core Insights - The article highlights the successful transformation of saline-alkali land in the Yellow River Basin into productive farmland through the innovative "rice-crab co-culture" model, which enhances both rice and crab production [1][3]. Group 1: Agricultural Innovation - The initiative was spearheaded by returning entrepreneur Zhang Tong in collaboration with several agricultural research institutions to create an efficient utilization experimental base for saline-alkali land [3]. - The project focuses on selecting salt-tolerant, high-yield rice varieties and developing accompanying green planting technologies [3][5]. - After seven years of research, the introduction of "saline-alkali land improvement + rice-crab co-culture" technology has significantly reduced soil salinity and improved irrigation conditions [3][5]. Group 2: Ecological Benefits - The rice-crab co-culture model creates a symbiotic relationship where rice provides shade and habitat for crabs, while crab waste serves as natural fertilizer for the rice fields [3][6]. - This ecological cycle not only enhances the quality of rice but also gradually improves the saline-alkali soil [3][6]. Group 3: Economic Impact - The co-culture area has reached over 300 acres, with significant results including a 47.8 kg increase in yield per mu and an 80% reduction in costs due to the introduction of mechanized planting techniques [6]. - The expected economic benefit per mu is approximately 15,000 yuan, with yields of 200 jin of crabs and 1,300 jin of organic rice per mu [6]. Group 4: Future Plans - The base aims to expand its influence by adopting a "base + farmer" model to involve local farmers in planting and processing, providing training and order guarantees to boost their income [8]. - Plans are in place to develop a 2,000-acre core area into an integrated agricultural industry demonstration park, encompassing seed breeding, standard planting, deep processing, and brand sales [8].