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Results of functional verification of unit for strip tillage, fertilization and corn sowing, developed by the Industrial Institute of Agricultural Engineering in Poznań under the project PBS1/B8/4/2012 are shown. Experimental model of the unit consists of two working modules, which allows simultaneous strip tillage with deep application of large fertilizer granules, and corn sowing with shallow application...
Productive effects and potassium and magnesium cycling in relation to the ways of fertilisation of permanent meadow on peat-muck soil were tested in field experiment in the years 2006-2009. Due to progressing soil mineralization and nitrogen release, fertilisation with only phosphorus and potassium (P-30 and K-60 kg·ha-1) was applied at the first level of fertilisation. Complete fertilisation (P-30,...
The aim of the study was to evaluate the level of weed infestation of maize cultivated in organic farming depending on natural fertilization (20 and 40 t of composted manure per 1 ha) and cultivation method: A - control object (without weed control), B - brush weeder (three times during the vegetation season), C - weeding hoe (three times during the season), D - brush weeder (two times during the...
Described studies were performed in a long-term irrigated meadow experiment at varied fertilisation. The aim of the study was to assess the effectiveness of meadow renovation in terms of yielding, botanical composition of meadow sward and its protein content in relation to diverse fertilisation. Seven variants were compared including five fertilised with mineral fertilisers at a rate of 60, 120, 180,...
The aim of this paper was to evaluate production technologies in organic farms in terms of the achievement of general and specific objectives of organic farming. The research was conducted in 210 organic farms (which had undergone the conversion period) located in Warminsko-Mazurskie, Lubuskie, Dolnośląskie, Zachodniopomorskie provinces. For the achievement of the objective pursued, crop rotation...
The paper discusses the contents and chemical forms of potassium in post-mining soils after 35-year-long experimental cultivation. In the experiment the post-mining dump deposits were fertilized with N, P, K, NK, NP, PK or NPK. Wheat and rape were sowed on the fields. The control field was left unfertilized. In the years 2014-2016 surface (0-30 cm) and subsurface (30-60 cm) layers of fertilized and...
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