Availability of Nitrogen, Phosphorus and Potassium from Poultry Litter and Conventional Fertilizers in a Volcanic Soil Cultivated with Silage Corn

In two experiments, pasteurized poultry litter (PPL) was evaluated as a potential substitute for controlled-release fertilizers in the production of container-grown downy jasmine (Jasminum multiflorum), chinese hibiscus (Hibiscus rosa-sinensis), and areca palm (Dypsis lutescens). Downy jasmine and chinese hibiscus generally grew better when provided with PPL as a micronutrient source than with no micronutrients or with an inorganic micronutrient blend (MN). However, areca palm grew poorly with PPL as a fertilizer supplement compared with MN-fertilized areca palm. PPL provided high levels of ammonium nitrogen, phosphorus, and potassium during the first few weeks, but soil solution levels of these elements dropped off rapidly in subsequent weeks. The large amount of phosphorus leached from the containers fertilized with PPL is an environmental concern.

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

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1006.2010.00655 ◽

2010 ◽

Vol 36 (4) ◽

pp. 655-664 ◽

Cited By ~ 6

Author(s):

Yong-Jian SUN ◽

Yuan-Yuan SUN ◽

Xu-Yi LI ◽

Rong-Ping ZHANG ◽

Xiang GUO ◽

...

Keyword(s):

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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Absorption and Distribution of Nitrogen,Phosphorus and Potassium inScutellaria baicalensisGeorgi and Their Relationships to Dry Matter Accumulation

Plant Science Journal ◽

10.3724/sp.j.1142.2012.10079 ◽

2012 ◽

Vol 30 (1) ◽

pp. 79 ◽

Cited By ~ 1

Author(s):

Xian-Yan CAO ◽

Wei-Ling WANG ◽

Fu-Li XU ◽

Jing WANG ◽

Xiao-Hu ZHANG

Keyword(s):

Dry Matter ◽

Dry Matter Accumulation ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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

International Agrophysics ◽

10.1515/intag-2016-0015 ◽

2016 ◽

Vol 30 (4) ◽

pp. 401-414 ◽

Cited By ~ 2

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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Effects of nitrogen, phosphorus and potassium rates on Microdochium patch

itsrj ◽

10.1002/its2.28 ◽

2021 ◽

Author(s):

Brian McDonald ◽

Alec Kowalewski ◽

Clint Mattox ◽

Emily Braithwaite ◽

Charles Schmid

Keyword(s):

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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Phytotoxic effects of invasive Ageratina adenophora on two native subtropical shrubs in Nepal

Scientific Reports ◽

10.1038/s41598-021-92791-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Tej Bahadur Darji ◽

Barsha Adhikari ◽

Seeta Pathak ◽

Shristi Neupane ◽

Lal B. Thapa ◽

...

Keyword(s):

Low Ph ◽

Potential Mechanism ◽

Phytotoxic Effects ◽

Seedling Length ◽

Ageratina Adenophora ◽

Ir Analysis ◽

Allelopathic Interference ◽

Phosphorus And Potassium ◽

Native Shrubs ◽

Nitrogen Phosphorus

AbstractThe response of native plants to allelopathic interference of invasive species may differ from species to species. In this study, the phytotoxic effects of Ageratina adenophora were tested on two native shrubs (Osbeckia stellata and Elsholtzia blanda) of Nepal. Both the shrubs were grown in pots under treatments of A. adenophora fresh leaves and root leachates, and litter. Then, the seedling length and biomass were compared among the treatments. The results show that A. adenophora litter has stimulatory effects but the leachates from fresh leaves and root are phytotoxic to the growth and development of native shrubs. Infrared Spectroscopy (IR) analysis confirmed the presence of O–H (Hydroxyl), N–H (Amines), C≡C (Alkynes), and C–H stretching (Aromatic) or C–O–C stretching (Ethers) in the leachates representing harmful allelochemicals. The invaded soil by A. adenophora had low pH and a high amount of organic matter, total nitrogen, phosphorus, and potassium than the uninvaded soil. The results indicate that the native O. stellata and E. blanda are harmed by A. adenophora in nature by leaching of allelochemicals and probably by reducing the soil pH. Overall, this study has provided valuable insights regarding the effects of A. adenophora invasion on native shrubs and revealing the potential mechanism of its invasiveness.

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