[Distribution of nitrogen and its changes in winter wheat plants during the vegetation period]
1999
Karele, I. (Latvian Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Dept. of Plant Production)
The accumulation of nitrogen in winter wheat plants during different stages of their growth and development has been studied. The trials carried out on the experimental field of the Latvia University of Agriculture in 1997 are described. Two winter wheat varieties - the mid-intensive "Sirvinta - 1" and the intensive variety "Otto" were investigated. The investigation results show that: 1) the highest nitrogen content in different parts of winter wheat plants is reached in the stooling stage; 2) in the flowering stage the movement of nitrogen to the reproductive parts of wheat plants is observed; 3) in all plant development stages there is a close positive correlation between the total nitrogen content in the above ground plant parts and the protein content in grain.
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