scholarly journals An effect of liming on magnesium content in meadow vegetation and leachate water

2017 ◽  
Vol 34 (1) ◽  
pp. 147-151
Author(s):  
Piotr A. Kacorzyk ◽  
Mirosław Kasperczyk
Keyword(s):  
Dry Matter ◽  
Unit Area ◽  
Chemical Properties ◽  
Magnesium Content ◽  
Muffle Furnace ◽  
Growing Seasons ◽  
Dry Digestion ◽  
Phosphorus And Potassium ◽  
Leachate Water ◽  
Potassium Magnesium

Abstract The aim of the study was to evaluate an effect of liming on chemical properties of the soil, magnesium content in the meadow vegetation and leachate water moving through the soil profile. The study was conducted in the growing seasons in the years 2012-2014. The study included three plots in two series: with lime and without lime. The plant material was subjected to dry digestion and ash was dissolved in HNO3 (1:3). The soil was mineralized in a muffle furnace and the ashes were dissolved in a mixture of HNO3 and HClO4 (3:1 v/v). In the obtained samples and in leaching water, estimated the content of phosphorus, potassium, magnesium and sodium by induction plasma emission spectrophotometer. In the soil content of assimilable phosphorus and potassium was determined by the Egner-Riehm method. The content of assimilable magnesium was determined by the Schachtschabel method and the pH of the soil by potentiometric method in water and in mol KC1·dm-3. Liming positively affected on soil pH and magnesium content in plants increasing its amount of about 15- 21% of dry matter with respect to not limed plots. In turn, lime fertilization negatively affected the content of magnesium in leachate water and the load eluted per unit area. Magnesium content in leachate water and the amount of loads eluted from limed plots were lower on average by 16-23% with respect to not limed plots.

scholarly journals Potassium, magnesium and calcium content in individual parts of Phaseolus vulgaris L. plant as related to potassium and magnesium nutrition

2011 ◽  
Vol 50 (No. 1) ◽  
pp. 18-26 ◽  
Author(s):  
J. Tůma ◽  
M. Skalický ◽  
L. Tůmová ◽  
P. Bláhová ◽  
M. Rosůlková
Keyword(s):  
Phaseolus Vulgaris ◽  
Dry Matter ◽  
Calcium Content ◽  
Magnesium Content ◽  
Potassium Content ◽  
Pot Experiment ◽  
Content Increase ◽  
Phaseolus Vulgaris L ◽  
Potassium Magnesium

In a two-pot experiment of Phaseolus vulgaris L., the influence of K and Mg gradated doses upon K, Mg and Ca content in the pods, stem and leaves was studied. The content of cations changed significantly in individual parts of the plant. The highest content of potassium was found within the dry matter of the pods (it exceeded 4%) and stalk (3–4%). The highest content of calcium (3–4%) and magnesium (0.4–0.8%) was found within the dry matter of the leaves. The effects of K gradated doses were revealed significantly in its higher content increase mainly in the leaves (by as much as 83%) and the decrease of calcium content (31%) and magnesium content (37%) was observed in the leaves and less in the stalks. The effects of Mg gradated doses were revealed in the non-significant increase in its content in the leaves and stalks and the decrease of the potassium content in the leaves (by 19%) and in stalks (11%) and even in the decrease of the calcium content (52%) mainly in the pods.

Effects of soil limestone and foliar manganese and zinc applications on field cauliflower growth and element contents

2010 ◽  
Vol 90 (1) ◽  
pp. 177-188 ◽  
Author(s):  
C G Kowalenko ◽  
M. Ihnat
Keyword(s):  
Dry Matter ◽  
Nutrient Dynamics ◽  
Weather Conditions ◽  
Yield Reduction ◽  
Dry Matter Yield ◽  
Variable Response ◽  
Growing Seasons ◽  
Adverse Weather ◽  
One Year ◽  
Potassium Magnesium

A trial was conducted in a field where a previous study suggested that a deficiency of manganese (Mn) or zinc (Zn) was created by the application of limestone, with the objective to confirm whether lime-induced deficiency is a potential problem in coastal British Columbia acidic soils. The trial involved the application and incorporation of limestone at two rates (9 and 19 Mg ha-1) in addition to a control with no limestone, and five foliar applications of Mn and Zn. The foliar applications included a control, Mn at two rates (2.3 and 4.5 kg ha-1), Zn at one rate (2.3 kg ha-1) and a combination of Mn and Zn, both at 2.3 kg ha-1. The trial was conducted at the same location over seven growing seasons (1979-1985), with the cauliflower grown in five of those years. The plot was fallowed in 1981 and 1983. The limestone treatments were applied in the spring of 1979, and again in the summer of 1981, while the foliar applications were applied to the plant each cropped season. Limestone increased plant dry matter yield in three years, decreased it in one, and had no effect in the other. The micronutrient applications did not affect dry matter yield in any of the years. Chemical analyses on the plants showed that limestone increased Ca and decreased Mn and Zn concentrations. The foliar applications increased plant Mn and Zn concentrations. Limestone, but not the micronutrient, applications influenced other element concentrations, with decreased concentrations of potassium, magnesium, sodium, strontium and rubidium. Iron and copper concentrations were not influenced by limestone applications. The decreased concentrations of nutrients could not account for the yield reduction by limestone applications in the one year, since concentrations of the nutrients measured in that year were not significantly different to concentrations in years when yields were increased. Further, basal applications of nutrients (nitrogen, phosphorus, potassium, magnesium and boron) had been applied to ensure that non-treatment nutrients were not deficient. Although monthly weather conditions were similar for one year of increased yield and one year of decreased yield, the influence of weather on the variable response by the crop could not be discounted as there could have been adverse weather conditions at critical stages of plant growth. Strontium and rubidium tended to respond to limestone similar to calcium and potassium, showing that their measurements have potential to further evaluate nutrient dynamics since they have characteristics similar to calcium and potassium, respectively. This field trial showed that limestone applications had many and variable effects on the availability of numerous nutrients and associated elements on cauliflower in addition to Mn and Zn. This showed the high degree of complexity of limestone applications on acidic soils.Key words: Liming, soil pH, Ca, nutrient elements, nutrient analogs

FEATURES OF THE PRODUCTION PROCESS OF ANCIENT AND MODERN VARIETIES OF WINTER RYE

1970 ◽  
pp. 15-19
Author(s):  
A. A. Torop ◽  
V. V. Chaykin ◽  
E. A. Torop ◽  
I. S. Brailova ◽  
S. A. Kuzmenko
Keyword(s):  
Production Process ◽  
Dry Matter ◽  
Leaf Surface ◽  
Unit Area ◽  
Biomass Accumulation ◽  
Vegetation Period ◽  
Winter Rye ◽  
Total Chlorophyll ◽  
Potential Productivity ◽  
Productivity Potential

We compared peculiarities of the production process of the older and modern(created 80 years after) sorts of winter rye. It is determined that the specific coenotic productivity of a modern sort is 60.6% higher.This increase is due to higher number of productive sprouts per unit area and higher sprout weight. The coenosis of modern sorts is highly resistant to lodging. The modern sort has a 33.5% higher leaf surface index and a 17.7% higher share of the leaves in the upper tier, differing in their erectile orientation in space. As for the content of total chlorophyll in the dry matter of leaves and vagina, the modern sort is inferior to the older by 30.2%during theearing period, and by 17.5%during the milky-wax ripeness period.As for the content of total chlorophyll in the sowing area, the compared sorts were practically the same, but the ratio between chlorophyll a and c was noticeably different. As for the chlorophyll content in stems, in dry matter and in the area of ​​sowing, the modern sort is inferior by1.5 times and more to the older in both observation terms. The sorts differed in the biomass accumulation and its distribution between the parts during the vegetation period. To establish the ear productivity, the older sort used only the current photosynthesis products.In conditions of an unfavorable growth year, the modern sort used previously accumulated by leaves and re-utilized assimilates. The actual and potential productivity of an ear in a modern sort is higher by 77.4 and 68.0%, respectively, but the degree of its vegetative mass supply is lower by 48.6%.Only due to the higher, by 77.4%, utilization of the mass of the sprout, the modern sort binds a greater number of grains in the ear with a higherseparate mass.Since the sharp increase in the ear productivity potential was not accompanied by the same growth of the sprout vegetative mass, the modern sort, in unfavorable conditions for growth, has tensions in the relation system between the sprout vegetative mass and pouring grain. This may be the reason of the unstable achievedyield level.

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 Alkalinity–silicon ratio as an assessment factor for the efficiency of silicate slags in wetland rice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Thoppil Sreenivasan Sandhya ◽  
Nagabovanalli Basavarajappa Prakash
Keyword(s):  
Silicon Content ◽  
Chemical Properties ◽  
Magnesium Content ◽  
Wetland Rice ◽  
Agronomic Efficiency ◽  
Economic Production ◽  
Incubation Experiments ◽  
Calcium And Magnesium ◽  
Si Content ◽  
Assessment Factor

AbstractSilicate slags are one of the most widely used silicon (Si) source in agriculture. Even though the agronomic significance of slags has been demonstrated in several crops, only a few attempts were made to evaluate these Si sources based on their chemical composition. The main objective of this study was to characterize different silicate slags based on their chemical properties and to explore the effect of these chemical properties on the yield, and Si uptake in wetland rice, and dissolution of Si into the soil. Slags were characterised for pH, calcium and magnesium content (alkalinity, A), silicon content, 5 day Na2CO3 + NH4NO3 extractable Si content, and alkalinity to Si ratio (A/Si). Greenhouse and incubation experiments were also conducted using different silicate slags and wollastonite applied at the rate of 300 kg Si ha−1. Slags with A/Si < 3 were found to be ideal Si sources for the economic production of wetland rice and found consistent in increasing soil Si content and rice Si uptake. We conclude that the A/Si ratio of slags can be used as an important parameter to assess the agronomic efficiency of silicate slags in wetland rice.

scholarly journals Quality Attributes of Malaysia Purple-Fleshed Sweet Potato at Different Peel Condition

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 872
Author(s):  
Nurfarhana Shaari ◽  
Rosnah Shamsudin ◽  
Mohd Zuhair Mohd Nor ◽  
Norhashila Hashim
Keyword(s):  
Vitamin C ◽  
Sweet Potato ◽  
Dry Matter ◽  
Nutritional Value ◽  
Amylose Content ◽  
Starch Content ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

In this study, physical and chemical properties (dry matter, ash, moisture, protein, fat, fiber, carbohydrate, starch, amylose, and vitamin C) of sweet potato tuber and flour of Anggun 1 cultivar were evaluated at different conditions. During peeling, the tuber and flour were processed subjected to three different conditions, which were unpeeled tubers (C1), peeled tubers (C2), and skin of tuber only (C3). From the results, the highest (p < 0.05) dry matter was observed in C1 while higher contents of ash, moisture, and protein were found in C3. Regarding the fat and vitamin C content, no significant differences (p > 0.05) were found between each condition. The highest fiber, carbohydrate, and amylose content (p < 0.05) were found in C1. The C1 and C2 reflected significantly higher (p < 0.05) starch content. Overall, these results provide important information about the peeling effect on the physical and chemical properties of Anggun 1. The information could be used as adding value to healthy food in the Malaysian diet due to the nutritional value of sweet potato.

scholarly journals The digestion process of the sugar alcohol isomalt in the intestinal tract of the pig

1993 ◽  
Vol 69 (2) ◽  
pp. 467-479 ◽  
Author(s):  
E. J. Van Weerden ◽  
J. Huisman
Keyword(s):  
Small Intestine ◽  
Dry Matter ◽  
Intestinal Tract ◽  
Live Weight ◽  
Feed Consumption ◽  
Slight Reduction ◽  
Sodium Potassium ◽  
Bacterial Fermentation ◽  
Digestion Process ◽  
Potassium Magnesium

In a study with ten pigs of 60–70 kg live weight, provided with a re-entrant cannula at the end of the ileum, and sixteen intact, non-cannulated pigs, the digestion and absorption of a dietary dose of 100 g isomalt/kg, and isomalt given between the meals as a ‘sweet’on the basis of 50 and 100 g/kg feed consumption, were examined. In all three isomalt treatments slightly less than 0.40 of the isomalt consumed was digested in the small intestine when the calculations were based on ileal sugar passage. However, when basing the calculations on energy contents of ileal chyme, only approximately 0.10 was digested in the small intestine. The bacterial fermentation of the isomalt flowing into the large intestine was indicated by a decreased faecal energy digestibility and a slight reduction in faecal dry matter and nitrogen digestibility. The retention of the minerals sodium, potassium, magnesium, calcium and phosphorus was not influenced to any measurable extent when isomalt was fed.

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