Biljno-hranidbeni kapacitet tla i opskrbljenost biljaka hranivima u nasadu limuna na otoku Hvaru

master's thesis

• Title (english): Plant-nutrient soil capacity and plant nutrient supply in the lemon orchard on the island of Hvar
• Author: Nikolina Drinković
• Mentor: Ante Biško (mentor)
• Committee member: Ante Biško (predsjednik povjerenstva)
• Committee member: Lepomir Čoga (član povjerenstva)
• Committee member: Đani Benčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Plant Nutrition); Zagreb
• Defense date and country: 2023-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Na temelju biljno-hranidbenog kapaciteta tla i opskrbljenosti stabala limuna biogenim elementima utvrdit će se jesu li vidljive razlike u nasadu limuna uvjetovane specifičnim razlikama u tlu i fiziologijom mineralne ishrane. Također, utvrđene koncentracije biogenih elemenata (makro i mikroelemenata) u biljnom materijalu – listu limuna sorte Meyer usporedit će se s referentnim vrijednostima istih za limun, te utvrditi stupanj opskrbljenosti limuna istima. Rezultati kemijskih analiza biljnog materijala i opskrbljenost biogenim elementima ukazuju na niže vrijednosti dušika u biljnom materijalu - listu limuna, što je glavni razlog vidljive kloroze lista. Također, sva tri osnovna makroelementa (N,P,K), u oba uzorka biljnog materijala, bili su niži od preporučenih vrijednosti za biljni materijal, posebice N i Ca u listu na lošijoj tabli „lt“, dok su vrijednosti Mg bile optimalne u oba analizirana uzorka. Od analiziranih mikroelemenata, naglašavamo povišenu vrijednost B, te niže vrijednosti Cu i Zn, te o navedenom treba voditi računa u budućnosti, računajući moguće pritoke (sredstva za zaštitu bilja, folijarna gnojiva). Posebice ističemo potrebu stvaranja povoljnijih uvjeta za primitak hraniva kroz optimalno natapanje tijekom vegetacije jer usprkos bogate opskrbe tla kalijem, dobre opskrbe fosforom i ukupnim dušikom nemamo dobru opskrbljenost biljaka istima. Također, gnojidbu N gnojivima potrebno je primijeniti višekratno tijekom vegetacije, najbolje zajedno sa natapanjem nasada limuna.

Abstract (english)

Based on the plant-nutrient soil capacity and the supply of lemon trees with biogenic elements, we will determine if there are visible differences in the lemon orchard due to specific soil and mineral nutrition physiology differences. Furthermore, the determined concentrations of biogenic elements (macro and microelements) in the plant material, specifically lemon leaf (Citrus meyeri), will be compared with reference values for lemon, to assess the degree of lemon nutrient supply with these elements. The results of chemical analysis of plant material and the supply of biogenic elements indicate lower nitrogen values in the plant material - lemon leaf, which is the main reason for the visible chlorosis of the leaves. Additionally, all three primary macronutrients (N, P, K) in both samples of plant material were lower than the recommended values for plant material, especially N and Ca in the leaves on the "lt" side. However, magnesium (Mg) values were optimal in both analyzed samples. Among the analyzed micronutrients, we emphasize the elevated boron (B) levels and lower copper (Cu) and zinc (Zn) levels. These findings should be considered in the future, considering possible inputs (pesticides, foliar fertilizers). We particularly emphasize the need to create favorable conditions for nutrient uptake through optimal irrigation during the vegetation period because despite the rich potassium supply in the soil and good supplies of phosphorus and total nitrogen, we do not have a good supply of plants with these nutrients. Additionally, nitrogen fertilization should be applied multiple times during the vegetation period, preferably in conjunction with lemon orchard irrigation.

• Keywords: limun; analiza tla; analiza biljnog materijala; makroelementi; mikroelementi
• Keywords (english): lemon; soil analysis; analysis of plant material; macroelements; microelements
• Language: croatian
• URN:NBN: urn:nbn:hr:204:559838
• Study programme: Title: Organic Agriculture with Agrotourism; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma (magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2024-10-02
• Created on: 2023-10-02 11:20:03