The effect of growth-period calcium nitrate fertilization on potato yield and relative leaf chlorophyll content
2001
Joudu, J. | Lohmus, A. | Laeaeniste, P. | Eremeev, V. | Makke, A. (Estonian Agricultural Univ., Tartu (Estonia). Dept. of Field Crop Husbandry)
This study was carried out in the experimental fields of the Department of Field Crop Husbandry of the Estonian Agricultural University in 1999-2000. The main objective of the experiment was to study the effect of Calcium Nitrate Tropi-Cote sup(TM) fertilizer (manufactured by the Hydro-Agri Company), applied on the leaves of potato plants as water solution spray (foliar fertilization) or on the soil as a granular substratum (top-dress fertilization), in the period of tuber formation. The use of the Hydro N-tester allowed to examine the dynamics of the growth-period nitrogen in potato plants in 2000
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