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Influence of fertilization methods on the growth of Norway spruce (Picea abies (L.) Karst.) seedlings in a forest nursery

100%

Kowalkowski W., Hauke-Kowalska M., Baszak K.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

2013

tom 12

nr 1

The essence of conducting a forest nursery production is high quality planting material. Its essential element is rational fertilization of plants grown and conscious use of available methods and fertilizer application. Studies on the effects of fertilization on the growth of Norway spruce (Picea abies (L.) Karst.) can be used by foresters to properly choose the fertilizer needed to achieve the target of production. In the research foliar fertilization was applied, by the following means: “EM Naturally Active” (EM Naturalnie Aktywny – Greenland EM Technology) – liquid organic fertilizer with soil microorganisms, “Bioekor for conifers and ericaceous plants” (Bioekor dla iglaków i roślin wrzosowatych) – mineral foliar fertilizer in the form of a liquid concentrate trace elements and natural growth substances, “Ekolist standard” mineral foliar fertilizer in the form of a liquid concentrate. The study was conducted in 2009-2010 in the forest nursery situated in the Forest District Spychowo. Spruce seedlings transplanting was used. Experiments consisted of four objects repeated in four blocks. The fertilization was performed six times – 2009, and four – 2010. The measurements were performed three times. Annual growth of seedlings taken, from height of measurement was calculated. Analysis of the results obtained, did not show statistically significant differences for any of the applied methods of fertilization.

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Wpływ nanocząstek srebra i miedzi na wzrost i ograniczanie pasożytniczej zgorzeli siewek sosny zwyczajnej (Pinus sylvestris L.) w szkółce Nadleśnictwa Spychowo

88%

Aleksandrowicz-Trzcinska M., Szaniawski A., Soltys A., Baszak K., Studnicki M.

Sylwan

2018

tom 162

nr 06

Nanoparticles are gaining ever−wider application in plant production (for both agriculture and forestry), in the role of pesticides, as well as stimulators of plant growth and resistance. We sought to determine the efficacy of silver and copper nanoparticles (AgNPs and CuNPs respectively), used as seed dressings or subjected to foliar application, in affording protection from parasitic damping−off disease among soil−grown seedlings of Scots pine in a forest nursery. Experiments also assessed the influence of the nanoparticles on the growth of the plants potentially safeguarded in this way. Nanoparticles were used in seed soaking and foliar spraying at 50 ppm concentration. Pines treated with fungicides (Zaprawa Nasienna T 75 DS, Acrobat MZ 69 WG, Topsin M 500 SC, Gwarant 500 SC, Thiram Granuflo 80 WG and Signum 33 WG) or unprotected at all were used for comparison. In each treatment (AgNPs, CuNPs, fungicides or unprotected), seedlings were inventoried 6 weeks after the sowing and at the end of the growing season, while all individuals on 80 1−m−long segments of seed row were counted. At the end of the growing season, shoot length, root−collar diameter, root length and dry mass of shoots and roots were determined. The seedlings treated with nanoparticles had longer root systems of greater dry mass, but also only more weakly−developed above−ground parts (both height and dry mass being limited) in comparison with young Scots pines that had been fungicide−treated or were unprotected. It resulted in a significantly more favourable ratio between shoot and root masses, where nanoparticle treatment had been applied. The effectiveness of the protection extended to the germination and first−growth stages up to 6 weeks from the time of sowing was furthermore shown to be greatest where AgNPs had been applied, while at the season end there were comparable results among pines treated with either nanoparticles or fungicides. Our results thus indicate that nanoparticles limit damping−off disease in pine seedlings (AgNPs more effectively than CuNPs), with that effectiveness also proving comparable with that noted for the fungicides applied traditionally.

Ograniczanie wyników

1 Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

1 Sylwan

2 Baszak K.

1 Aleksandrowicz-Trzcinska M.

1 Hauke-Kowalska M.

1 Kowalkowski W.

1 Soltys A.

1 Studnicki M.

1 Szaniawski A.

1 2018

1 2013

Wyniki wyszukiwania

Influence of fertilization methods on the growth of Norway spruce (Picea abies (L.) Karst.) seedlings in a forest nursery

Wpływ nanocząstek srebra i miedzi na wzrost i ograniczanie pasożytniczej zgorzeli siewek sosny zwyczajnej (Pinus sylvestris L.) w szkółce Nadleśnictwa Spychowo