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 Phosphatase activities of spruce stand soils after serpentinite fertilisation in combination with nitrogen, phosphorus and potassium fertilisers

2015 ◽  
Vol 57 (2) ◽  
pp. 82-89 ◽  
Author(s):  
Ewa Błońska ◽  
Kazimierz Januszek ◽  
Tomasz Wanic ◽  
Stanisław Małek
Keyword(s):  
Physicochemical Properties ◽  
Positive Impact ◽  
Chemical Properties ◽  
Molar Ratio ◽  
Mineral Horizon ◽  
Spruce Stands ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Forest District ◽  
Properties Of Soil

Abstract The aim of this study was to assess the condition of soil after serpentine fertilisation by determining the activity of phosphatase and some physicochemical properties of soil. The study was conducted in southern Poland in the Wisła Forest District (49°8’12.92N 18°58’56.36E). The following variants: C - control - no fertiliser; S - ground serpentinite; SN - serpentinite + nitrogen; SP - ground serpentinite + P; SNP - ground serpentinite + NP; SNPK - ground serpentinite + NP (as above) + K. Fertilisation of serpentinite stimulates the activity of phosphatase in soil under spruce stands. The positive impact is reflected in the organic horizon. Less activity was noted in the humus-mineral horizon (AE) in all the fertiliser combinations three years after the fertilisation. Fertilisation of serpentinite improves the chemical properties - pH was increased, reduction of molar ratio of exchangeable calcium to magnesium form was noted.

RESPONSE OF SPRING WHEAT AND BARLEY TO NITROGEN, PHOSPHORUS AND POTASSIUM

1971 ◽  
Vol 51 (1) ◽  
pp. 1-11 ◽  
Author(s):  
R. F. BISHOP ◽  
C. R. MacEACHERN
Keyword(s):  
Protein Content ◽  
Spring Wheat ◽  
Plant Tissue ◽  
Crude Protein ◽  
Chemical Properties ◽  
Crude Protein Content ◽  
Grain Yields ◽  
The Third ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Fertilizer trials with spring wheat and barley were conducted at a total of seven and nine locations, respectively, during a three-year period. Treatments consisted of three rates of N, of P and of K in all possible combinations. Although the soils varied in their chemical properties, grain yields increased with the second increment of N in some years and the crude protein content of the grain increased with the third increment in all years. Grain yields were not increased by the second increment of either P or K. Although the effects of increasing rates of N, P and K on the levels of these nutrients in plant tissue were predominantly linear, increases in N levels were of much greater magnitude than increases in either P or K levels. The results indicate that N, P and K at approximately 135, 39 and 37 kg/ha, respectively, should be generally adequate.

scholarly journals Influence of the sanitary sewage application method to closed-end furrows on the macronutrient extraction capacity and productivity of elephant grass

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Marcus Vinícius Araújo Marques ◽  
Antonio Teixeira de Matos ◽  
Thiago Henrique Ribeiro Silvério ◽  
Ana Paula Miranda Pereira
Keyword(s):  
Dry Matter ◽  
Dry Matter Yield ◽  
Elephant Grass ◽  
Mineral Fertilization ◽  
Extraction Capacity ◽  
The Public ◽  
Experimental Planning ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Experimental Plots

AbstractThe objective of this work was to evaluate the influence of the form of raw sanitary sewage (RS) application in closed-end and level-bottom furrows on the dry matter yield and macronutrient extraction capacity (extraction of nitrogen, phosphorus and potassium) by the aerial part (stem and leaves) of elephant grass. Fertigation of elephant grass with RS were conducted for 3 uninterrupted years, and the RS application dose was established as a function of the amount of sodium fed to the soil (300 kg ha−1 year−1). In the experimental planning four treatments were established, where two experimental plots received RS and the water demand was complemented by treated water from the public supply network (TW), with and without alternation in the position of RS application in the furrows (TFA and TFN, respectively); and as a control there were two experimental plots in which the plants received conventional mineral fertilization, where the grass was irrigated with TW, with and without alternation in the position of water application in the furrows (TWA and TWN, respectively). The greatest mean dry matter yield (29.9 Mg ha−1 year−1) and mean macronutrient extraction values were found for plants submitted to TFA (688, 102, 508 kg ha−1 year−1 of N, P and K, respectively), compared to those obtained in the other treatments.

Fertilizer responses with non-irrigated Shiraz grapevines, 1944-1966

1970 ◽  
Vol 21 (2) ◽  
pp. 243 ◽  
Author(s):  
HW Tulloch ◽  
WB Harris
Keyword(s):  
South Australia ◽  
Growth And Yield ◽  
Yield Response ◽  
Positive Interaction ◽  
Severe Reduction ◽  
Factorial Trial ◽  
Phosphorus And Potassium ◽  
One Year ◽  
Nitrogen Phosphorus

A long-term factorial trial with nitrogen, phosphorus, and potassium fertilizers was started at Nuriootpa Viticultural Station, South Australia on the grape cultivar Shiraz in 1944. Results show a significant yield response to superphosphate. Long-term applications of ammonium sulphate resulted in severe reduction of vine growth and yield, and a significant lowering of soil pH. No direct response to potassium sulphate was obtained except in one year, but a positive interaction between potassium and phosphorus occurred in some years. An analysis of the components of yield in 1964 showed that the increase in yield with superphosphate was due to an increase in the number of berries per bunch. The nitrogen, phosphorus, and potassium contents of petioles were determined and related to available reference standards.

Use of Wastewater for Woodworking Enterprises for Obtain a Prolonged-Action Complex Fertilizer

2018 ◽  
Vol 22 (5) ◽  
pp. 46-49
Author(s):  
S.V. Lukashov ◽  
V.P. Gamazin
Keyword(s):  
Urea Formaldehyde ◽  
Maximum Yield ◽  
Molar Ratio ◽  
Formaldehyde Resin ◽  
Prolonged Action ◽  
Potassium Nutrition ◽  
Cesium 137 ◽  
Insoluble Polymer ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

The results of research on the optimal conditions for obtaining a prolonged-action complex fertilizer from wastewater from woodworking enterprises are presented. The main active substance of the fertilizer is a nitrogen-containing insoluble polymer, obtained by polycondensation of urea-formaldehyde resin with urea. To produce the finished product, the resulting polymer is mixed with ash. It was found that the maximum yield of a prolonged-action complex fertilizer based on the urea-formaldehyde polymer is achieved under the following conditions: pH = 2,0, molar ratio of formaldehyde: urea 1,0: 1,5, reaction time 3,5–4,0 h. It is shown that the fertilizer obtained can be used in agriculture to improve the nitrogen, phosphorus and potassium nutrition of plants, as well as to reduce the intake of cesium 137 radionuclides into agricultural products.

EFFECT OF NITROGEN, PHOSPHORUS AND POTASSIUM ON YIELDS AND NUTRIENT LEVELS IN THE LEAVES OF PROCESSING PEAS

1968 ◽  
Vol 48 (3) ◽  
pp. 225-233 ◽  
Author(s):  
R. F. Bishop ◽  
C. R. MacEachern ◽  
J. S. Leefe ◽  
H. B. Cannon
Keyword(s):  
Chemical Properties ◽  
Yield Response ◽  
Nutrient Levels ◽  
Consistent Increase ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Leaf N

Fertilizer trials with processing peas were conducted at 15 locations during a 4-year period. Although the soils varied in their chemical properties, there was no general or consistent yield response with increasing rates of N, P or K. There was, however, a consistent increase in leaf N with the higher rates of N and in leaf K with all rates of K. Increasing rates of K were accompanied by decreasing leaf levels of Ca and Mg. The results indicate that N, P and K applied at approximately 25, 50 and 25 kg/ha respectively should be generally adequate.

scholarly journals Nitrogen, Phosphorus, and Potassium Adsorption and Desorption Improvement and Soil Buffering Capacity Using Clinoptilolite Zeolite

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 379
Author(s):  
Perumal Palanivell ◽  
Osumanu Haruna Ahmed ◽  
Latifah Omar ◽  
Nik Muhamad Abdul Majid
Keyword(s):  
Chemical Properties ◽  
Buffering Capacity ◽  
Phosphorus Adsorption ◽  
Adsorption And Desorption ◽  
Ph Buffering ◽  
Clinoptilolite Zeolite ◽  
Phosphorus And Potassium ◽  
Soil Buffering ◽  
Nitrogen Phosphorus ◽  
Ph Buffering Capacity

The physical and chemical properties of clinoptilolite zeolite can be used to enhance soil nutrient availability for optimum crop use. Amending nitrogen, phosphorus, and potassium fertilizers with clinoptilolite zeolite could create a pool of negative charges to retain and release nutrients timely for crop use. Thus, we used clinoptilolite zeolite to enhance Typic Paleudults sorption (adsorption and desorption) of nitrogen, phosphorus, potassium, and this soil’s pH buffering capacity. The treatments evaluated were: (i) 250 g soil alone, (ii) 20 g clinoptilolite zeolite alone, (iii) 250 g soil + 20 g clinoptilolite zeolite, (iv) 250 g soil + 40 g clinoptilolite zeolite, and (v) 250 g soil + 60 g clinoptilolite zeolite. Clinoptilolite zeolite increased soil nitrogen and potassium adsorption, nitrogen desorption, and soil pH. Moreover, ability of the soil to resist drastic change in pH (pH buffering capacity) was improved. Additionally, phosphorus adsorption and desorption of phosphorus and potassium were reduced. Higher potassium adsorption with lower potassium desorption suggests that the clinoptilolite zeolite sorbs potassium effectively. The clinoptilolite zeolite nitrogen, phosphorus, and potassium contributed to the reduction in the adsorption these nutrients. The clinoptilolite zeolite improved nitrogen, phosphorus, and potassium availability and soil buffering capacity to prevent these nutrients from being fixed or lost through for example, leaching. Therefore, clinoptilolite zeolite application could contribute to improved use of nitrogen, phosphorus, and potassium fertilizers to prevent soil, air, and water pollution. Additionally, our intervention could improve nitrogen, phosphorus, and potassium use efficiency.

Effects of Nitrogen, Phosphorus and Potassium on Nodulation in Cowpea

1965 ◽  
Vol 1 (4) ◽  
pp. 257-259 ◽  
Author(s):  
G. P. Tewari
Keyword(s):  
Natural Environments ◽  
Naturally Occurring ◽  
Phosphorus And Potassium ◽  
Native Strains ◽  
Nitrogen Phosphorus ◽  
Experimental Plots

SummaryA factorial (3 × 3 × 3) experiment using three levels of nitrogen, phosphate and potassium was conducted to evaluate the effects of these elements on the formation of nodules. Results indicated that increasing levels of nitrogen depressed the formation of both effective and ineffective nodules, but phosphorus and potash did not produce any significant effects. Although the soils of the experimental plots were highly leached and strongly acid in nature, the native strains of rhizobia were able to produce copious amounts of effective nodules on plants growing on plots where no nitrogen was applied. It appeared that the naturally occurring rhizobia strains in these soils are well adapted to their natural environments.

scholarly journals Change in physico-chemical properties of soil and nutrients in Desmodium triflorum in case of seasonal variation in Ratnanagar-11, Jirauna, Chitwan, Nepal

2017 ◽  
Vol 3 (11) ◽  
pp. 285
Author(s):  
Niroj Paudel ◽  
Lila Pati Paudel ◽  
Prakash Deep Rai ◽  
Bishnu Dev Das
Keyword(s):  
Seasonal Variation ◽  
Rainy Season ◽  
Chemical Change ◽  
Winter Season ◽  
Chemical Properties ◽  
Low Ph ◽  
Physico Chemical ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Properties Of Soil

<p class="abstract"><strong>Background:</strong> Physico-chemical change is described in case of seasonal variation. The plant became grazed in different seasonings; nitrogen, phosphorus and potassium are estimated. The aim of paper is the nutrient uptake of <em>Desmodium triflorum due</em> to the change in season.</p><p class="abstract"><strong>Methods:</strong> The sample is collected as four month interval period the grass is tolerate as low pH<strong>. </strong>N-1.67–2.04%, P- 0.34–0.61% and K-1.46–4.15%.  </p><p class="abstract"><strong>Results:</strong> Soil had lowest concentrations of nitrogen (0.096%), phosphorus (0.004%), and potassium (0.027%) in the rainy season. The highest concentration of nitrogen (0.22%) occurred in summer season, phosphorus (0.005%) in winter and summer seasons, and potassium (0.073%) in the winter season. The carbon/nitrogen (C/N) ratio was highest (15.22:1) in summer and lowest (13.96:1) in the rainy season.</p><p><strong>Conclusions:</strong> Present study will be valuable in evaluation and management of the middle land pastures in Nepal.</p>

Response of Bioactive Phytochemicals in Vegetables and Fruits to Environmental Factors

2019 ◽  
pp. 233-247 ◽  
Author(s):  
Jingwen Xu ◽  
Xiaoyu Su ◽  
Yonghui Li ◽  
Xiuzhi Sun ◽  
Donghai Wang ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Visible Light ◽  
Bioactive Compounds ◽  
High Tunnel ◽  
Negative Effect ◽  
Bioactive Phytochemicals ◽  
Phosphorus And Potassium ◽  
Vegetables And Fruits ◽  
Positive Effect ◽  
Nitrogen Phosphorus

This review focused on the influence of environmental systems and/or factors including high tunnel, UV and visible light, fertilization, and irrigation on bioactive compounds in vegetables and fruits. Most studies reported that high tunnel reduced chicoric acid and luteolin in vegetables including lettuce and pac choi, and fruits including raspberry and tomato versus open field, although a few studies demonstrated that high tunnel did not significantly impact on the bioactive compounds. Light including UV such as photosynthetically active radiation (PAR), UV-A, and UV-B, and visible light especially red and blue light, significantly stimulated biosynthesis of anthocyanins, flavonoids, and phenolics, and promoted their contents in vegetables such as onion and spinach, and fruits for example blueberry and strawberry. The effect of fertilization including nitrogen, phosphorus, and potassium on bioactive phytochemicals (carotenoids, flavonoids, polyphenols) in vegetables (broccoli, kale) or fruits (tomato) varied among the cultivars. Water deficit usually increased anthocyanins, flavonoids, and phenolic acids in vegetables such as lettuce and red beet, and fruits including grape and pomegranate. Taken together, the bioactive compounds in vegetables and fruits in response to environmental factors were species- and varieties- dependent. The negative effect of environmental factors on bioactive compounds in vegetables and fruits can be overcome by selecting appropriate cultivars, while the positive effect can be further manipulated in horticultural production for potential consumer’s health benefits.

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