Balance of plant nutrients in Estonian agriculture
2002
Kaerblane, H. | Hannolainen,E. | Kanger, J. | Kevvai, L. (Academical Agricultural Society, Tartu (Estonia))
Total and active balance of plant nutrients (on the average of 1996-2000) was calculated for Estonian agriculture. it was compared with plant nutrient balance of 1960, 1965, 1970 and 1975. The calculations of the balance of plant nutrients based on the input and output of main plant nutrients. The sources of input are plant nutrients from fertilizers, seeds, precipitation symbiotically and non-symbiotically fixed nitrogen. The sources of output are removing of plant nutrients with the yield, leaching, runoff, volatilization of N
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