Effect of nitrogen and potassium fertilizer on growth, yield and chemical composition of sweet fennel

Effects of Applying Nitrogen and Potassium on Lilium lancifolium Growth and Accumulation of Secondary Metabolites in Bulbs

“…However, increasing the N rate does not always increase plant growth, and the availability of excessive amounts of nutrients can inhibit plant growth [34]. For example, the N and K application rates had an interactive effect on the growth of sweet fennel [11]. In the present study, N and K had significant interactive effects on the plant height and bulb circumference (Table 3).…”

“…The present study of the effects of N and K application on the agronomic traits of L. lancifolium showed that applying appropriate amounts of N and K promoted growth and development. The positive effects of N fertilization can probably be explained by the fact that N is a constituent of the chlorophyll molecule, and applying N combined with K significantly increased the chlorophyll content (Table 2), which is essential for photosynthesis [11]. Under N 3 (914.70 mg L −1 ), the stem diameter, leaf number, and chlorophyll content decreased with the K application, thereby indicating the unfavorable effect of excessive N application on the development of L. lancifolium, where top growth was inhibited [31,32].…”

“…Therefore, increasing the contents of the active ingredients of the bulb is an important approach for improving its edible and medicinal properties. Potassium (K) is an important element for plant metabolism and promoting the synthesis of carbohydrates [11]. It is well known that K has a role in increasing the chlorophyll content and photosynthesis, as well as in carbohydrate metabolism, thereby affecting the biosynthesis of carbon-based secondary metabolites, such as total phenols and flavonoids [12,13].…”

Különböző trágyafélék kálium hasznosulása különböző talajtípusokon zeller (Apium graveolens) jelzőnövénnyel

“…A kálium kimosódása pedig 10% körüli. Ezért a N és K tápanyag alkalmazásakor a tápanyagfelvétel dinamikájához igazodó tápanyagutánpótlás az indokolt [24,25,26,27]. Lepelhomok talajon, 0,3 -0,4% humusztartalom esetén, öntözetlen körülmények között, számolni kell a foszfor vertikális irányú migrációjával is [28,29,30].…”

Decomposed Babassu Biomass: New Substrate for the Production of Jacaranda mimosifolia D. Don Seedlings

“…An adequate supply of K available in the soil is necessary for optimal growth (Barzegar et al, 2020), especially for the thickening of the seedling stem (Valeri & Corradini, 2005). Ca plays a role in the stability of biomembranes, with a fundamental role in cell division and development, cell wall structure, and formation of the middle lamella (Hepler & Winship 2010).…”