Effects of nitrogen forms on roots and N fertilizer efficiency of different wheat cultivars with specialized end-uses
Ma, X.; Wang, Z.; Wang, X.; Wang, S.
Ying Yong Sheng Tai Xue Bao 15(4): 655-658
2004
ISSN/ISBN: 1001-9332 PMID: 15334964 Document Number: 568494
A pot experiment showed that under NH2-N treatment, strong gluten wheat Yumai 34 had the highest root biomass, root activity, N use efficiency, N harvest index and grain protein content, but all of these were the lowest under NO3--N treatment. For the medium gluten wheat Yumai 49, the items measured were the highest under NH4+-N treatment, but not the same trend under NO3--N and NH2-N treatments. For the weak gluten wheat Yumai 50, NH4+-N treatment was the best for its top quality and specialized end-uses. There was a significant relationship between grain protein content and N harvest index.