Effect of nitrogen and potassium fertilization on the yield and quality of Momordica charantia fruits

• Autorzy: El-Gengaihi S , Hendawy S. , Kamel A.

Warianty tytułu

PL

Wplyw nawozenia potasem i azotem na plon i jakosc owocow Momordica charantia

• Języki publikacji: EN

Abstrakty

EN

Nitrogen as ammonium nitrate in three doses: of 100, 200 and 300 kg/acre and potassium as sulphate in graded doses of 50 and 100 kg/acre were added using side dressing to Momordica charantia to assess their effects on fruit yield and active constituents. Nitrogen alone in graded doses increased the fruit production up to 200 kg of ammonium nitrate/acre, also all doses of potassium increased fruit production proportionally to doses. The highest number of fruits was produced with use of the combined medium nitrogen dose and high potassium doses. The obtained data revealed that higher fruit number with higher fresh and dry weight could be obtained by adding nitrogen at 200 kg/acre with potassium at a rate of 100 kg/acre. Arbor or vineyard like method of cultivation gave more fruits with higher fresh and dry weights than normal method of cultivation. Polypeptide in immature fruits increased by nitrogen till 200 kg/acre and the combination of medium dose of nitrogen and any rate of potassium produced the highest polypeptide concentration. The same treatment combination has similar effect on cucurbitacins in immature fruits.

PL

Badano wpływ nawozów azotowych i potasowych na masę owoców Momordica charantia i zawartość substancji aktywnych. W celu zbadania wpływu takiego nawożenia na liczbę owoców i zawartość substancji aktywnych podawano w pobliżu korzeni Momordica charantia azotan amonowy w trzech dawkach: 100, 200 i 300 kg/akr i siarczan potasu w dawkach rosnących od 50 do 100 kg/akr. Azot stosowany samodzielnie w rosnących dawkach zwiększył ilość owoców przy zastosowaniu dawki 200 kg azotanu amonowego na akr. Wszystkie dawki potasu zwiększyły plon owoców proporcjonalnie do dawki. Najwięcej owoców otrzymano przy zastosowaniu połączonej średniej dawki azotu i wysokich dawek potasu. Otrzymane wyniki dowiodły, że większą ilość owoców (a także większą masę świeżych owoców i większą suchą masę) można osiągnąć, stosując 200 kg azotu na akr równocześnie ze 100 kg potasu na akr. Uprawa w rzędach lub metodą winnicową pozwoliła uzyskać więcej owoców o większej masie świeżej i większej masie suszu niż przy stosowaniu metody tradycyjnej. Dzięki nawożeniu azotem zawartość polipeptydów w niedojrzałych owocach została podwyższona aż do 200 kg/akr. Kombinacja średniej dawki azotu i dowolnej dawki potasu dała największe stężenie polipeptydów. Podobny efekt zastosowania tej kombinacji został odnotowany w niedojrzałych owocach innych dyniowatych.

Słowa kluczowe

EN

nitrogen fertilization; potassium fertilization; yield; fruit; plant cultivation; Momordica charantia; fertilization; quality

• Wydawca: -
• Czasopismo: Herba Polonica
• Rocznik: 2007
• Tom: 53
• Numer: 1
• Opis fizyczny: p.11-20,ref.

Twórcy

autor

El-Gengaihi S

• National Research Centre Dokki, 12311 Cairo, Egypt

autor

Hendawy S.

autor

Kamel A.

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