Effect of Different Nitrogen Fertilizer Management Modes on Nitrogen Fertilizer Absorption and Utilization of Nangeng 9108 in Coastal Agricultural Areas
DING Ying
YAN Jun
LIU Xinghua
LIU Yanyan
HE Jiang
WAN Baijie
Abstract：In order to promote the cultivation of excellent tasting rice on saline soil in coastal agricultural areas of Jiangsu Province,the late medium geng-rice variety Nangeng 9108 was used as experimental material,and three different nitrogen application including FFP(farmer's conventional fertilization),CRU(slow release fertilizer)and SSNM(site-specific nitrogen management))were conducted to study the effects of different nitrogen fertilizer management modes on rice growth,yield,and nitrogen fertilizer absorption and utilization.The results showed that SSNM treatment could effectively reduce ineffective tillering at the early growth stage of Nangeng 9108,achieve a high panicle formation rate of 77.19％,and obtain a high yield(8 730 kg/hm2)with a lower nitrogen fertilizer input(220 kg/hm2),and NUE(nitrogen use efficiency)was 32.3％.Under the FFP treatment,the yield of Nangeng 9108 was 8 571 kg/hm2,and NUE was 30.3％.Under the treatment of CRU,the yield of Nangeng 9108 was 7 985 kg/hm2,but NUE was only 22.3％.Therefore,to promote the planting of Nangeng 9108 on experimental saline soil,the SSNM can be prioritized,and the FFP also has certain practical feasibility.
Keywords：RiceNitrogen fertilizer managementNUEYield
Publication Date：2025-02-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 44-50 )