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TEST RESULTS OF SILVAMIX®MG , SILVAMIX®W AND SILVAMIX®R FERTILIZING EFFECTS ON SPRUCE AND BEECH SEEDLINGS IN FORESTRY

After carrying out tests on the fertilizing of spruce seedlings in the Sudeten (Szklarska Poręba) and in a forest nursery with various forms of SILVAMIX® the Department of Soil Science and Fertilization of the Forestry Research Institute in Warsaw (Poland) hereby submits the following test results.

Following the fertilizing of 3-year spruce seedlings in Szklarska Poręba:

with SILVAMIX® MG (9,13,6,17) - 5 tablets per seedling, growth in height increased by an average of 33% (27-40%)
with SILVAMIX® MG (9,13,6,17) - 50 g of powder around the seedling, growth in height increased by an average of 36% (30-44%)
with SILVAMIX? W (10,13,16,18) - 5 tablets per seedling, growth in height increased by an average of 38% (31-46%)

The seedlings took up nutrients (according to the results of the analysis of needles from the last year) at a mass percentage of dry mass:

	% N	% P	% K	% Ca	% Mg
Control	1.35	0.16	0.39	0.30	0.09
SILVAMIX® MG, tablets	1.67	0.19	0.45	0.44	0.11
SILVAMIX® MG, powder	1.81	0.19	0.47	0.42	0.11
SILVAMIX® W, tablets	1.70	0.18	0.41	0.39	0.10

The results obtained after fertilizing 1-year beech and spruce in the nursery:

with SILVAMIX® R (10,6,16,7) at a quantity of 5 kg of powder/ar, displays an average growth in height of beech of 35% and of dry seedling mass of 56%
with SILVAMIX? R (10,6,16,7) at a quantity of 5 kg of powder/ar, displays an average growth in height of spruce of 32% and of dry seedling mass of 52%

The results of the analysis of assimilation organs are as follows:

	% N	% P	% K	% Ca	% Mg
Beech Control	2.02	0.14	0.54	0.64	0.13
SILVAMIX® R	2.16	0.16	0.65	0.68	0.15
Spruce Control	1.62	0.22	0.43	0.38	0.10
SILVAMIX® R	1.98	0.28	0.72	0.48	0.13

Sękocin, 24.2.1997
For the attention of:
Director General Lasów Państwowych (State Forests)
Department of Forest Management
09-922 Warsaw, ul. Wawelska 52/54
Poland

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