Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(1), 241-244 | DOI: 10.11118/actaun200856010241

Reakce růstových parametrů papriky na rozdílné úrovně výživy NPK

Mohamed Ewis Abdelaziz1, A. H. Hannfy Ahmed, R. S. Bekhid, Robert Pokluda1
1 Ústav zelinářství a květinářství, Mendelova zemědělská a lesnická univerzita v Brně, Valtická 337, 691 44 Lednice, Česká republika

Práce byla zaměřena na studium vlivu pěti různých hladin přihnojování NPK na intenzitu růstu papriky (Capsicum annuum L. odrůda 'Bruyo') pěstované ve foliovníku a hodnocené pomocí růstové analýzy. Velikosti listové plochy (LAR), specifické listové plochy (SLA), relativní míry růstu (RGR) a čisté míry asimilace (NAR) byly hodnoceny za dvě periody (60-90 a 90-120 dnů) od výsadby. Průměrné hodnoty LAR, SLA, RGR a NAR signifikantně poklesly s narůstající dobou vegetace rostlin v obou letech pěstování. Střední dávky NPK (34N-42P-29K / foliovníku 540 m2) vykázaly průkazně nejvyšší hodnoty LAR a SLA za obě pěstební periody. Na druhé straně byly nejvyšší hodnoty NAR zjištěny ve variantě s nejnižší dávkou NPK (17N-21P-15K / foliovníku 540 m2). Zvyšování přihnojovacích dávek NPK na střední hladinu mělo pozitivní vliv na LAR a SLA u papriky.

paprika, růstová analýza, NPK, skleník

Response of growth patterns in sweet pepper to different NPK levels

This work was conducted to study the effect of five NPK fertigation levels on the growth rate of sweet pepper (Capsicum annuum L. cv. Bruyo) grown under the plastic greenhouse using different growth analysis formulas. Leaf area ratio (LAR), specific leaf area (SLA), relative growth rate (RGR) and net assimilation rate (NAR) was evaluated in two periods (60-90 and 90-120 days after transplanting). The mean values of LAR, SLA, RGR and NAR tended to decrease significantly with advancing plant age in both seasons. In general, at the moderate level (34N-42P-29K / plastic house 540 m2) was found the highest significant values of LAR and SLA in the two growth periods. On the other hand, the highest values of NAR were recorded at the plants treated with the lowest NPK fertigation level (17N-21P-15K / plastic house 540 m2). However, increase of NPK fertigation doses to the moderate levels had favorable effects on LAR and SLA of sweet pepper plants.

Keywords: sweet pepper, growth analysis formulas, NPK, greenhouse

Received: May 7, 2007; Published: November 17, 2014  Show citation

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Abdelaziz, M.E., Hannfy Ahmed, A.H., Bekhid, R.S., & Pokluda, R. (2008). Response of growth patterns in sweet pepper to different NPK levels. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 56(1), 241-244. doi: 10.11118/actaun200856010241
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