Effect of special fertilizer for oilseed rape in Central Hubei Province

doi:10.14088/j.cnki.issn0439-8114.2024.02.013

Abstract

Abstract: To clarify the effect of special fertilizers for oilseed rape （Brassica napus L.） on the yield enhancement of direct seeding oilseed 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 nutrient 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 increase rapeseed yield. Compared with the conventional fertilization, the total nutrient input of the special fertilizer treatments decreased 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 nutrients by the aboveground oilseed rape. The treatment with special fertilizer for oilseed rape significantly improved the partial productivity 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.

Key words: direct sowing oilseed rape（Brassica napus L.）, special fertilizer for oilseed rape, yield, fertilizer utilization, Central Hubei Province

CLC Number:

GU He-he, FANG Wen, CHEN Jin, LI Xu-chun, LIAO Shi-peng, YANG Yu-xiong, REN Tao, LU Jian-wei. Effect of special fertilizer for oilseed rape in Central Hubei Province[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(2): 74-78.

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