Use of a fertilizer containing L-amino acid for improving root growth and growth of mycorrhiza

摘要

The present invention provides a method of using a fertilizer, comprising an amino acid selected from the group of L-glutamine, L-asparagine and L-arginine as major nitrogen source, optionally together with inorganic nitrogen and/or a suitable preservative, for stimulating root growth, inducing more fine roots, increase the number of root tips and/or for stimulating mycorrhiza development.

主权项

1. A method for stimulating the growth of a cultivated mycorrhizal plant, comprising the step of applying a growth effective amount of a fertilizer comprising a nitrogen source to soil having a cultivated mycorrhizal plant,
wherein the cultivated mycorrhizal plant is a tree of a species of Populis, or Picea abies, Pinus contorta or Pinus sylvestris; wherein the nitrogen source comprises an inorganic compound comprising nitrogen and a naturally occurring L-amino acid; wherein the naturally occurring L-amino acid is L-arginine; wherein the growth effective amount of the fertilizer is effective to stimulate growth of the whole cultivated mycorrhizal plant; wherein the naturally occurring L-amino acid is present in the fertilizer in an amount effective to stimulate mycorrhiza development and to increase the root mass fraction of the cultivated mycorrhizal plant, which amount is 30% to 80%; whereby the growth of the whole cultivated mycorrhizal plant is stimulated and the root mass fraction of the cultivated mycorrhizal plant is increased.