上海农业学报2023，Vol.39Issue(6)：21-25,5.DOI:10.15955/j.issn1000-3924.2023.06.05
缓释肥对鲜食玉米养分吸收利用及产量的影响
Effects of slow release fertilizer on nutrient absorption,utilization and yield of fresh corn
摘要
Abstract
In order to develop the slow/controlled release fertilizer suitable for the growth and development characteristics and cultivation habits of fresh corn in Shanghai,the effects of different fertilization treatments on dry matter accumulation,nitrogen absorption,nitrogen using efficiency,yield and its components and economic benefits of'Zhongnuo No.2',the main fresh corn variety in Shanghai were studied.The results showed that the application of slow-release fertilizer could significantly improve the bald tip phenomenon of maize,increased ear length,ear width,number of grains per ear,weight per ear,yield and commodity of ear,etc.Among them,the treatment effect was the best when N-P-K was 26-6-10,slow-release nitrogen accounted for 50％,and the dosage was 900 kg/hm2.Compared with conventional fertilization,it increased dry matter mass by 16.16％,nitrogen uptake by 16.95％,yield by 13.74％.Ear length,ear width and grain number per ear were increased by 15.86％,2.62％and 10.27％respectively.In conclusion,adding slow-release fertilizer with 50％slow-release nitrogen could better meet the nitrogen demand of maize in each growth period,increase the dry matter accumulation and nitrogen absorption,and significantly improve the dry matter accumulation,nitrogen use efficiency,yield,economic benefits and other indicators of fresh corn.It could also reduce two late dressing and meet the nutrient demand for nitrogen in the whole growth period of maize.关键词
缓释肥/鲜食玉米/养分/缓效氮/产量Key words
Slow release fertilizer/Fresh corn/Nutrient/Slow-release nitrogen/Yield分类
农业科技引用本文复制引用
徐莉莉,李丹,王慧,王站付,陆雪珍..缓释肥对鲜食玉米养分吸收利用及产量的影响[J].上海农业学报,2023,39(6):21-25,5.基金项目
上海市鲜食玉米产业技术体系建设[沪农科产字(2017)第10号] （2017）
