Sodium chloride is the most often used chemical to malt ice and snow on the roads and has negative effects on the roadside environment. Searching for ways to improve the conditions for growth of trees and shrubs near the roads becomes an urgent matter. One such method of improving growth conditions for plants under salinity might be to use organic matter (green waste compost) and mycorrhizal fungi. This study studied the effect of application in soil different salts on several trees and shrubs growth in growing media. Also, effect of green waste compost and arbuscular mycorrhiza (AM) added to the growing medium was evaluated in terms of growth and K + , Ca +2 , and Na + uptake. The highest pH of the growing medium was noted when sodium carbonate was used. The pH ranged from 8.7 to 9.0 after eight doses of sodium carbonate.
A b s t r a c tA field experiment with Actinidia arguta and A. kolomikta cultivars purchased from a commercial nursery was conducted in Skierniewice, central Poland. Both Actinidia arguta and A. kolomikta cultivars were planted in June 2005 at a spacing of 3 x 2.2 m. The aim of the study was to investigate the influence of climate conditions on the growth of eight cultivars of small kiwi fruit and to evaluate their usefulness for orchard culture in central Poland. After three years of growth in different climate conditions, including one of the coldest winters (2005/06) during the last years, and also severe late spring frosts (2007), some conclusion can be drawn. Two cultivars of Actinidia kolomikta have shown quite good resistance to winter and spring frosts, but the growth rate of these plants was rather slow. All the cultivars of Actinidia arguta were damaged by frost during the 2005/06 winter due to the snow-cover level, which was rather thick (24 cm). One year later all new shoots and leaves of Actinidia arguta cultivars were damaged completely by late spring frosts, which deleted flowering and fruit setting for at least one year. After three years of growth observations, the growth rate of small kiwi cultivars can be divided into three groups: fast growing with 'Jumbo' and 'Genewa'; moderate growing with 'Issai', 'Ken's Red' and 'Weiki' -male and female, and slow growing with A. kolomikta cultivars Dr Szymanowski and Sientiabrskaja.
Owoce jagody goji (Lycium barbarum i Lycium chinense) -nowe możliwości dla ogrodnictwa czy zagrożenie dla konsumentów?Fruits of goji berry (Lycium barbarum and Lycium chinense) -new possibility for horticulture or risk for consumers?Streszczenie. Kolcowój szkarłatny (Lycium barbarum) i kolcowój chiński (Lycium chinense) należą do rodzaju Lycium liczącego ok. 100 gatunków krzewów w rodzinie psiankowatych (Solanaceae). Sadzone są ze względu na dekoracyjne właściwości i małe wymagania glebowe. W ostatnich latach możliwości uprawy tych krzewów na owoce pojawiły się wraz z nowymi odmianami oraz promocją właściwości zdrowotnych owoców. W tradycyjnej chińskiej medycynie od wieków wykorzystuje się owoce oraz korę korzeni i młode liście. Obecnie na rynku, oprócz krzewów rozmnażanych w szkółkach, dostępne są powszechnie suszone owoce pochodzące z Chin. Opinie konsumentów są podzielone, ponieważ wiele starszych źródeł literatury dendrologicznej umieszcza kolcowój na liście roślin trujących. W związku z tymi doniesieniami oraz dużym zainteresowaniem uprawą Lycium, na podstawie literatury, zaprezentowano w pracy możliwości wykorzystania i uprawy tych krzewów w polskich warunkach.
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