To clarify the effect of special fertilizers for oilseed rape(Brassica napus L.)on the yield enhancement of direct seeding oil-seed rape in central Hubei Province,field experiments for two consecutive years in Shayang County,Hubei Province from 2019 to 2021 were carried out,with four fertilization treatments of no fertilizer,conventional fertilizer,Yishizhuang special fertilizer and Yangfeng special fertilizer,and the differences of the yield,aboveground biomass,aboveground nutrient content,aboveground nutri-ent accumulation and fertilizer partial productivity of oilseed rape at mature stage under four treatments were analyzed.The results showed that compared with no fertilization control,both conventional fertilization and special fertilizer treatments could significantly in-crease rapeseed yield.Compared with the conventional fertilization,the total nutrient input of the special fertilizer treatments de-creased by 41.3％,but there was no significant difference in rapeseed yield between conventional fertilization and special fertilizer treatments.Fertilizer application significantly increased the aboveground biomass of oilseed rape and promoted the absorption of nutri-ents by the aboveground oilseed rape.The treatment with special fertilizer for oilseed rape significantly improved the partial productivi-ty of fertilizers.Compared with the conventional fertilization treatment,the average fertilizer partial productivity of Yishizhuang special fertilizer treatment and Yangfeng special fertilizer treatment increased by 80.6％and 68.2％respectively in 2019-2020 and 2020-2021.In conclusion,the special fertilizer for oilseed rape improved the utilization rate of fertilizer while ensuring a high and stable yield of oilseed rape.
关键词
直播油菜(Brassica/napus/L.)/油菜专用肥/产量/肥料利用率/鄂中地区
Key words
direct sowing oilseed rape(Brassica napus L.)/special fertilizer for oilseed rape/yield/fertilizer utilization/Central Hu-bei Province
维普
万方数据