石灰氮添加复合肥又名长效复合肥,系浙江农业大学土化系与浙江省衢州市化工厂共同研制成功的一种新型复合化肥。1993年11月通过省级鉴定,其N、P_2O_5、K_2O的含量分别为14.6％、7.0％、9.6％。前二年我们在湖州市进行石灰氮复合肥与尿素氮复合肥肥效对比试验,在亩施50kg等量条件下,石灰氮复合肥与尿素氮复合肥相比,苋菜增产12.0％～13.9％;花椰菜增产14.8％～23.5％;芹菜增产17.8％,23.8％;生菜增产8.1％～10.0％(见表1)。对大白菜根肿病也有一定的防治效果。 Lime nitrogen added compound fertilizer, also known as long-acting compound fertilizer, Zhejiang Agricultural University Department of Chemistry and Zhejiang Quzhou Chemical Plant jointly developed a new type of compound fertilizer. In November 1993 passed the provincial appraisal, its N, P_2O_5, K_2O content were 14.6%, 7.0%, 9.6%. The first two years we carried out in Huzhou City, lime nitrogen fertilizer and urea nitrogen compound fertilizer efficiency comparison test, the amount of mu under the conditions of 50kg, lime nitrogen fertilizer and urea nitrogen compound fertilizer, amaranth yield 12.0% to 13.9%; Broccoli increased 14.8% ~ 23.5%; celery increased 17.8%, 23.8%; lettuce yield 8.1% ~ 10.0% (Table 1). Root cabbage clubhead disease also has some control effect.