Nitrogen, phosphorus, and potassium effects on the physiology and biomass yield of baby spinach (Spinacia oleracea L.)

2017 ◽  
Vol 40 (14) ◽  
pp. 2033-2044 ◽  
Author(s):  
Lufuno Ethel Nemadodzi ◽  
Hintsa Araya ◽  
Mpumelelo Nkomo ◽  
Wonder Ngezimana ◽  
Nixwell Fhatuwani Mudau
Keyword(s):  
Biomass Yield ◽  
Spinacia Oleracea ◽  
Spinacia Oleracea L ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Nitrogen, phosphorus, and potassium effects on biomass yield and flavonoid content of American skullcap (Scutellaria lateriflora)

2015 ◽  
Vol 39 (9) ◽  
pp. 1240-1249 ◽  
Author(s):  
Santosh Shiwakoti ◽  
Dennis A. Shannon ◽  
C. Wesley Wood ◽  
Nirmal Joshee ◽  
Agnes Rimando ◽  
...  
Keyword(s):  
Biomass Yield ◽  
Flavonoid Content ◽  
Scutellaria Lateriflora ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Effects of Water-Nitrogen Interaction on Absorption, Translocation and Distribution of Nitrogen, Phosphorus, and Potassium in Rice

2010 ◽  
Vol 36 (4) ◽  
pp. 655-664 ◽  
Author(s):  
Yong-Jian SUN ◽  
Yuan-Yuan SUN ◽  
Xu-Yi LI ◽  
Rong-Ping ZHANG ◽  
Xiang GUO ◽  
...  
Keyword(s):  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

scholarly journals Effects of serpentinite fertilizer on the chemical properties and enzyme activity of young spruce soils

2016 ◽  
Vol 30 (4) ◽  
pp. 401-414 ◽  
Author(s):  
Ewa Błońska ◽  
Kazimierz Januszek ◽  
Stanisław Małek ◽  
Tomasz Wanic
Keyword(s):  
Enzyme Activity ◽  
Chemical Properties ◽  
Molar Ratio ◽  
Tree Roots ◽  
Forest Zone ◽  
Negative Effect ◽  
Phosphorus And Potassium ◽  
One Year ◽  
Nitrogen Phosphorus ◽  
Experimental Plots

AbstractThe experimental plots used in the study were located in the middle forest zone (elevation: 900-950 m a.s.l.) on two nappes of the flysch Carpathians in southern Poland. The aim of this study was to assess the effects of serpentinite in combination with nitrogen, phosphorus, and potassium fertilizers on selected chemical properties of the soil and activity of dehydrogenase and urease in the studied soils. All fertilizer treatments significantly enriched the tested soils in magnesium. The use of serpentinite as a fertilizer reduced the molar ratio of exchangeable calcium to magnesium, which facilitated the uptake of magnesium by tree roots due to competition between calcium and magnesium. After one year of fertilization on the Wisła experimental plot, the pH of the Ofh horizon increased, while the pH of the mineral horizons significantly decreased. Enrichment of serpentinite with nitrogen, phosphorus, and potassium fertilizers stimulated the dehydrogenase activity in the studied organic horizon. The lack of a negative effect of the serpentinite fertilizer on enzyme activity in the spruce stand soil showed that the concentrations of the heavy metals added to the soil were not high enough to be toxic and indicated the feasibility of using this fertilizer in forestry.

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