Effect of different N rates on yield and benefit of edible sunflower in Inner Mongolia

IPNI-2017-CHN-NM01

Inner Mongolia Autonomous Region (IMAR) is the main sunflower-growing region, with area and production accounting for over 50% of the total in China. In IMAR, 80% of the sunflower is produced for edible nuts. The amount of nitrogen (N) required for producing 100 kg achenes is 3. 8 to 4. 9 kg N/ha. Farmers frequently over apply N fertilizers, resulting in low N use efficiency and low benefit. Read more


Year of initiation:2017
Year of completion:2017

Interpretive Summary

2017

Inner Mongolia Autonomous Region (IMAR) is the main sunflower-growing region, with area and production accounting for over 50% of the total in China. In IMAR, 80% of the sunflower is produced for edible nuts. The amount of nitrogen (N) required for producing 100 kg achenes is 3. 8 to 4. 9 kg N/ha. Farmers frequently over apply N fertilizers, resulting in low N use efficiency and low benefit.



Project Leader

Yu Duan, Institute of Plant Nutrition and Analysis, Inner Mongolia Academy of Agricultural Sciences


Project Cooperators

Jun Zhang


IPNI Staff

S. Li


Location

Asia \ Eastern Asia \ CHN \ Inner Mongolia \ Wuchuan, Jining, Linhe


Topics

4r rate

sunflower

Nitrogen (N)