scholarly journals Influence of Potassium Supply on Growth and Uptake of Nitrogen, Phosphorus, and Potassium by Three Ectomycorrhizal Fungal Isolates In Vitro

2005 ◽  
Vol 28 (2) ◽  
pp. 271-284 ◽  
Author(s):  
Ling Yuan ◽  
Jianguo Huang ◽  
Peter Christie ◽  
Xiaolin Li
Keyword(s):  
Fungal Isolates ◽  
Potassium Supply ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

scholarly journals Nutrient Interactions and Deficiency Diagnosis in the Lettuce II. Effects of Nutrition on Water Content

1957 ◽  
Vol 10 (1) ◽  
pp. 57 ◽  
Author(s):  
DW Goodall ◽  
WG Slater ◽  
AE Grant Lipp
Keyword(s):  
Water Content ◽  
Dry Matter ◽  
Sand Culture ◽  
Nutrient Interactions ◽  
Culture Experiment ◽  
Potassium Supply ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

In a sand� culture experiment with lettuces, the water content (as per cent. of dry matter) of the aerial portions was studied in plants subjected to five levels of nitrogen, phosphorus, and potassium supply in all combinations.

scholarly journals Response of Young Papaya Plants to Nitrogen, Phosphorus, and Potassium Supply

HortScience ◽  
1997 ◽  
Vol 32 (4) ◽  
pp. 603E-603
Author(s):  
Bielinski M. Santos ◽  
Jose P. Morales-Payan
Keyword(s):  
Shoot Growth ◽  
Dry Weight ◽  
Maximum Growth ◽  
Short Term ◽  
Shoot Dry Weight ◽  
Potassium Supply ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
K Fertilization ◽  
Term Response

Studies were conducted in the Dominican Republic to determine the short-term response of young `Cartagena Ombligua' papaya (Carica papaya) plants to nitrogen (N), phosphorus (P), and potassium (K) fertilization. N, P2O5, K2O were individually applied 20 days after transplanting at rates 0, 6, 12, 18, and 24 g per plant. Plant height, stem diameter, leaf area, and root and shoot dry weight responded to N and K in a quadratic fashion (N:Y= 30.79+ 1.35X-0.07X2; K20:Y = 30.02 +1.6X - 0.06X2). Maximum growth was obtained with 6 and 18 g of N and K2O, respectively. P fertilization did not significantly affect shoot growth, but it stimulated root growth (Y = 2.02 + 0.41X - 0.013X2).

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.

scholarly journals Effects of nitrogen, phosphorus and potassium rates on Microdochium patch

itsrj ◽  
2021 ◽  
Author(s):  
Brian McDonald ◽  
Alec Kowalewski ◽  
Clint Mattox ◽  
Emily Braithwaite ◽  
Charles Schmid
Keyword(s):  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus
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