黑龙江：科技“金钥匙” 开启黑土地“丰收密码”

Core Insights - The article highlights the successful harvest in Heilongjiang Province, emphasizing the integration of "good seeds," "good practices," "good land," "good systems," and "good opportunities" as the key to achieving high yields [1] Group 1: Good Seeds - The "Xianyu 1219" corn variety achieved a historical high yield of 1842.6 jin per mu in Zhao Guang Farm, surpassing previous years by over 200 jin per mu, resulting in an additional income of nearly 200 yuan per mu at current market prices [2] - The farm conducted 35 scientific trials this year, with notable success in using local high-affinity root nodule bacteria and biological fertilizers, which improved soil microbial environments and reduced chemical fertilizer usage by over 20% [2] Group 2: Good Land - The implementation of black soil protection techniques has led to an increase in corn yield by over 100 kg per mu compared to last year in the Baquanling Farm's demonstration area [3] - The organic matter content in the plow layer has increased by 7.8% since 2018, reaching an average of 47 grams per kilogram, and the soil quality has improved by 0.5 grades [3] Group 3: Good Machinery - The use of high-performance combine harvesters has significantly increased harvesting efficiency, with each machine capable of harvesting up to 1,500 mu per day, achieving a 100% mechanization rate [4] - The harvesting of soybeans in Changshuihe Farm is nearing completion, with expectations to finish by October 10, showcasing the effectiveness of modern agricultural machinery in reducing grain loss [4] Group 4: Overall Impact - The integration of technology, good seeds, practices, land, and opportunities has solidified this year's harvest foundation, contributing to food security in China and enhancing confidence in agricultural sustainability [4]