The effect of different potassium fertilization of forecrop on the enzymatic activity of soil in spring barley cultivation
Journal Title: Acta Agrophysica - Year 2018, Vol 25, Issue 1
Abstract
The aim of the study was to determine changes of enzymatic activity of soil during spring barley vegetation. The field experiment was carried out in 2011 and 2013 with a completely randomised method, in four replicates, on the experimental plots of the Siedlce University of Natural Sciences and Humanities. The forecrop was pea (Pisum sativum L.), for which the following fertilisation was applied: NK0, NK1, NK2, NK3, NK4, NK5 (N-20; K1-41.5; K2-83; K3-124; K4-166; K5-207,5 kg ha–1). In spring barley (Hordeum vulgare L.) cultivation, six levels of fertilisation were applied: N1K0, N1K1, N1K1, N1K1, N1K1, N1K1 (N1-50, K1-41.5 kg ha–1). The activity of the enzymes was determined four times during vegetation, in soil samples taken from the Ap horizon (0-30 cm layer). The soil was characterised by very high urease act ivity (average 365.5 mg N-NH4 h–1 kg–1 dm of soil.) The highest activity of dehydrogenases was determined in the soil sampled in June from the N1K1 fertiliser treatment (NK3 forecrop). Alkaline phosphatase activity was twice as high as that of acid phosphatase. The highest activity of alkaline phosphatase (0.46-0.64 mmol PNP h–1 kg–1 dm of soil) and acidic (0.26-0.31 mmol PNP h–1 kg–1dm of soil) was characterized by soil taken from the fertiliser treatment N1K1 (spring barley) NK1 (forecrop-pea).
Authors and Affiliations
Barbara Symanowicz, Stanisław Kalembasa, Martyna Toczko, Korneliusz Skwarek
Keywords
Related Articles
- EP ID EP476752
- DOI -
- Views 46
- Downloads 0
Wpływ opadów atmosferycznych na plonowanie średnio wczesnych odmian ziemniaka jadalnego w różnych rejonach Polski
Celem pracy było przeanalizowanie wpływu opadów atmosferycznych na plonowanie ziemniaka średnio wczesnego. Wykorzystano dane dotyczące plonowania 9 średnio wczesnych odmian ziemniaka jadalnego oraz sum opadów (w latach 2...
Wrażliwość 24 odmian buraka cukrowego na niedobór wody podczas wschodów
Celem 3 doświadczeń przeprowadzonych w latach 2012 i 2013 była ocena wschodów i wrażliwości 24 odmian buraka cukrowego na okresowe niedobory wody w glebie. Nasiona zostały wysiane do wypełnionych glebą płową typową (65%...
Mineral nitrogen content in the 60-90 cm layer of grassland soils relative to other fodder crops, way of managing agricultural lands and farming intensity
Mineral nitrogen occurring at the depth of 60-90 cm of the soil profile, which is unavailable to the main root mass of grassland plants and arable land crops and which is located in this layer due to leaching to deeper s...
Yield, seed quality and nodule formation of soybean under application of effective microorganisms
Soybean is a legume of high economic value, valued primarily for the high protein and oil content in its seed. Due to the advisability of seeking optimal solutions in the agronomy of this valuable legume, a study was und...
Impact of growth biostimulators and herbicide on edible potato yield
The aim of research was to define the influence treatment methods involving application of growth biostimulators and herbicide on the total yield of edible potato. The field research was conducted in 2015-2017 in the are...