POTASSIUM AND PHOSPHORUS ACCUMULATION IN ORGANIC SOIL AND THEIR INFLUENCE ON POTATO CROPS

1964 ◽  
Vol 44 (3) ◽  
pp. 280-285 ◽  
Author(s):  
J. J. Jasmin ◽  
R. Tourchot ◽  
H. B. Heeney
Keyword(s):  
Leaf Tissue ◽  
Organic Soil ◽  
Available Phosphorus ◽  
Exchangeable Potassium ◽  
Total N ◽  
Phosphorus Accumulation ◽  
Potato Crops ◽  
Chipping Quality ◽  
Total Potassium

Repeated application of fertilizer over a 5-year period (1957–61) on organic soil producing potatoes resulted in large increases in exchangeable potassium and in moderate increases in acid-soluble plus absorbed phosphorus. Where potatoes were grown without application of fertilizer the exchangeable potassium decreased rapidly but the available phosphorus remained at a constant level.Fertilizer treatments influenced yields only in 1961, and per cent total N and P in leaf tissue only in 1961 and 1958 respectively. However, in all years the per cent total potassium in leaf tissue was in direct relation to rate of fertilizer applied and the percentage of Ca and Mg generally decreased as per cent potassium increased. The specific gravity and the general boiling quality of the tubers were adversely affected by heavy fertilization, but the chipping quality, the flavor, and the color of the flesh were not affected by soil fertility differences.

THE EFFECTS OF AMMONIUM NITRATE AND UREA ON THE RELEASE OF NON-EXCHANGEABLE POTASSIUM BY EIGHT EASTERN PRAIRIE SOILS DURING CONTINUOUS CROPPING IN THE GREENHOUSE

1974 ◽  
Vol 54 (3) ◽  
pp. 255-263 ◽  
Author(s):  
L. D. BAILEY
Keyword(s):  
Ammonium Nitrate ◽  
Nitrogen Content ◽  
Plant Material ◽  
Total Yield ◽  
Continuous Cropping ◽  
Exchangeable Potassium ◽  
Total N ◽  
Prairie Soils ◽  
Soil Potassium ◽  
Total Potassium

Continuous cropping of eight Manitoba soils to alfalfa in the greenhouse decreased the exchangeable potassium of the soils to low equilibrium levels. Non-exchangeable potassium was removed from the soils by the alfalfa. The rate of decrease of exchangeable potassium and the quantity of non-exchangeable potassium mobilized was significantly influenced by the addition of ammonium nitrate or urea to the soils. However, there were no significant differences between the soils treated with ammonium nitrate and those treated with urea. There was considerable variation among soils in the rate of decrease of exchangeable potassium and the quantity of non-exchangeable potassium mobilized. The total yield of soil potassium was related to the initial exchangeable potassium levels of the soils. Addition of NH4NO3 increased the percentage of total N in the plant material harvested prior to the eighth harvest. After this eighth harvest the added nitrogen had no effect on the nitrogen content of the harvested material. In general, fine-textured soils yielded more plant material and total potassium, and maintained a higher level of exchangeable potassium than coarse-textured soils.

scholarly journals Effect of application compost and vermicompost from market waste on soil chemical properties and plant growth

2022 ◽  
Vol 9 (2) ◽  
pp. 3379-3386
Author(s):  
S Syarifinnur ◽  
Yulia Nuraini ◽  
Budi Prasetya
Keyword(s):  
Organic Carbon ◽  
Total Phosphorus ◽  
Chemical Properties ◽  
Dry Weight ◽  
Soil Chemical Properties ◽  
Available Phosphorus ◽  
Total N ◽  
Shoot Dry Weight ◽  
Total Potassium ◽  
Time Of Harvest

This study was conducted to determine the effect of compost and vermicompost from market organic waste on the soil chemical properties and the growth of maize. The treatments tested were three doses of compost (2.5, 5, and 10 t/ha), three doses of vermicompost (2.5, 5, and 10 t/ha), and one control (without compost or vermicompost). At the time of harvest (10 weeks after planting), maize shoot dry weight, root dry weight, cob length, cob diameter, cob with husk, and cob dry weight, as well as the soil chemical properties organic carbon (C), total nitrogen (N), total phosphorus (P), available P, total potassium (K), and pH were observed. Maize plant height, leaf number, and stem diameter were observed at 2, 4, 6, and 8 weeks after planting. The results showed that the application of compost and vermicompost significantly affected soil chemical properties and the yield of maize. The application of 10 t vermicompost/ha resulted in the highest yield of maize and highest increase of soil organic carbon, total phosphorus available phosphorus, total potassium, and pH by 7.21%, 112.41%, 287.44%, 85.44% and 17.58%, respectively. The application of 10 t compost/ha resulted in the highest increase of soil total N by 44%.

scholarly journals Effect of seasonal variation on soil enzymes activity and fertility of soil in paddy fields of North Vanlaiphai, Mizoram, India

2018 ◽  
Vol 18 (2) ◽  
pp. 70-73
Author(s):  
C. Vanlalveni ◽  
R. Lalfakzuala
Keyword(s):  
Soil Nitrogen ◽  
Paddy Field ◽  
Soil Enzymes ◽  
Soil Samples ◽  
Available Phosphorus ◽  
Exchangeable Potassium ◽  
Growing Environment ◽  
Total Soil Nitrogen ◽  
Soil Enzymes Activity

For sustainability in agricultural productions, familiarity of soil quality and manual improvement to create the best possible growing environment for plants are extremely important. In this study the quality of soil of a paddy field in North Vanlaiphai was investigated with respect to the change in seasons throughout the year. A total of five (5) soil samples were selected from various places of the paddy field, and soil fertility indicators such as pH, total soil nitrogen (N), available phosphorus (Pav), exchangeable potassium (Kex), soil organic carbon (SOC), soil organic matter (SOM) and soil enzymes viz. dehydrogenase, phosphatase and urease were analyzed using standard protocols. All the parameters except available phosphorus and exchangeable potassium were found to be highest during rainy season whereas lowest in summer.

scholarly journals Selected nutrients determining the quality of different cuts of organic and conventional pork

2021 ◽  
Author(s):  
Karolina M. Wójciak ◽  
Michał Halagarda ◽  
Sascha Rohn ◽  
Paulina Kęska ◽  
Agnieszka Latoch ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Meat Products ◽  
Pork Meat ◽  
Total N ◽  
Iron And Zinc ◽  
Calcium Magnesium ◽  
Calcium Iron ◽  
Organic Meat

AbstractOrganic meat products are gaining consumer interest worldwide. The aim of this study was to investigate the effect of organic and conventional meat origin on nutritional determinants of the following pork meat cuts: loin, ham, and shoulder. Nutritional value of meat was based on selected indicators such as proximate composition, the concentration of cholesterol, vitamin E content and minerals and trace elements such as calcium, magnesium, potassium, copper, iron, and zinc, and the composition of fatty acids. The results of this study demonstrated that higher contents of protein and selected mineral compounds, as well as lower vitamin E concentration and different fatty acids (i.e., C12:0, C17:0, C17:1 n-7, C18:3 n-6, C24:0 and total n-3 polyunsaturated fatty acids (PUFA)) distinguish organic pork meat cuts from the conventional counterparts. The organically meat parts, especially the shoulder, were identified as a better source of copper, calcium, iron and zinc, while organic ham and loin had more potassium. On the other hand, organic hams were shown to have lower content of vitamin E in comparison to their conventional equivalents present. Also, in organic shoulders showed a higher n-6/n-3 ratio compared to meat of conventional origin.

Evaluation of Quality of Root Canal Obturation, Coronal Restoration and Periapical Health in Failed Endodontically Treated Teeth

2021 ◽  
Vol 11 (02) ◽  
pp. 54-59
Author(s):  
Syed Adeel Ahmed ◽  
Safia Anwar ◽  
Imtiaz ul Haq
Keyword(s):  
Root Canal ◽  
P Value ◽  
Periapical Lesion ◽  
Endodontically Treated Teeth ◽  
Chi Square ◽  
Cross Sectional ◽  
Total N ◽  
Chi Square Test ◽  
Cross Tabulation

Objective: To investigate the implication of quality of obturation and coronal restoration on periapical tissue in failed endodontically treated teeth. Study Design and Setting: This cross-sectional research was performed in the Operative Department of BUMDC on 187 patients reporting with root canal failure from March 2019 to August 2019. Methodology: Patients of both genders aged between 20-60 years were considered for this study. Single and multirooted teeth indicated for repeated endodontic treatment due to under filled, overfilled obturation, voids in obturation, absence and presence of coronal restoration were included. One operator carried out clinical examination of the teeth and periapical radiograph was taken for each patient by using E-Speed film and evaluated by the same operator using an illuminated viewer box. SPSS 17 for windows software was used for data entering and chi- square test was applied for statistical calculation of the outcomes. Results: Total n=187 endodontic treated failed teeth were evaluated, out of which 52.9% were of females and 47.1% to males. The number of obturations with acceptable length were 81(43.3%), with adequate density were 107 (57.2%) and with consistent taper were 116(62%). Periapical lesion was observed in 118(63.1%) cases. Quality of obturation significantly affects the periapical health. Cross tabulation showed a significant association (p-value <0.000) between inadequate coronal restoration and changes in periapical area. Conclusion: The successful prognosis of the root canal treatment relies on the good quality of obturation and adequate coronal filling.

scholarly journals Effects of Different Agro-Based Materials on Composting of Pulp/Paper-Mill Sludge

2014 ◽  
Vol 40 (1) ◽  
pp. 33-40
Author(s):  
Nurdan Aycan ◽  
Nurdan Gamze Turan
Keyword(s):  
Rice Husk ◽  
Paper Mill ◽  
Bulking Agents ◽  
Paper Mill Sludge ◽  
Total N ◽  
Compost Maturity ◽  
Pulp Paper ◽  
Composting Systems ◽  
Maturity Parameters

Abstract The effects of different volumetric ratios of bulking agents to pulp/paper-mill sludge on composting were studied. Rice husk and corncob were used as bulking agents. Volumetric ratios of bulking agents to pulp/paper-mill sludge were used as 10:100 and 25:100. To monitor the evolution of the composting systems, routine parameters such as temperature, moisture, pH, total N, NH4 +-N, NO3 --N, total C, and C/N ratio were analyzed. The results indicated that the agro-based materials significantly affected compost maturity parameters. Moreover, the quality of the product obtained in the composting process treated with the agro-based materials achieved satisfactory stabilization and sanitation for application to land.

scholarly journals Positive impact of cladribine on quality of life in people with relapsing multiple sclerosis

2017 ◽  
Vol 24 (11) ◽  
pp. 1461-1468 ◽  
Author(s):  
Dayo Afolabi ◽  
Christo Albor ◽  
Lukasz Zalewski ◽  
Dan R Altmann ◽  
David Baker ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Multiple Sclerosis ◽  
Positive Impact ◽  
Rank Correlation ◽  
Phase Iii ◽  
European Medicines Agency ◽  
Total N ◽  
The Impact ◽  
Relapsing Multiple Sclerosis

Background: A number of elements of the pivotal ‘cladribine tablets treating multiple sclerosis orally’ (CLARITY) trial have remained unpublished. Objective: To report the impact of cladribine on health-related quality of life (QoL) in people with relapsing multiple sclerosis (pwRMS). Methods: QoL data from the phase III trial of two different doses (3.5 and 5.25 mg/kg) of oral cladribine in pwRMS were acquired from the European Medicines Agency through Freedom of Information. Spearman’s rank correlation was used to analyse the relationship between baseline QoL scores and baseline Expanded Disability Status Scale (EDSS) scores. Responses of the Euro Quality of Life 5 Dimensions (EQ-5D) and Multiple Sclerosis Quality of Life-54 (MSQOL-54) questionnaires were compared between treatment and control groups using univariate analyses of covariance. Results: In total, n = 5148 EQ-5D responses and n = 894 MSQOL-54 physical, mental health and dimension scores were extracted. Baseline EQ-5D indices correlated with EDSS scores. After 2 years, pwRMS taking 3.5 ( p = .001) and 5.25 mg/kg ( p = .022) reported significantly improved EQ-5D index scores compared with placebo. Positive, yet non-significant, differences were detected in MSQOL-54 scores between cladribine and placebo. Conclusion: Analysis of the CLARITY dataset suggests that, over and above its established clinical efficacy, cladribine leads to improved QoL over 96 weeks. ClinicalTrials.gov identifier: NCT00213135.

scholarly journals Dietary hybrid phytase and carbohydrases on nutrient digestibility and bone quality of broiler chickens

2021 ◽  
Vol 56 ◽  
Author(s):  
Caroline Bavaresco ◽  
Everton Luis Krabbe ◽  
Diego Surek ◽  
Edenilse Gopinger ◽  
Fernando Nicolas Martinez ◽  
...  
Keyword(s):  
Bone Quality ◽  
Broiler Chickens ◽  
Basal Diet ◽  
Positive Control ◽  
Nutrient Digestibility ◽  
Metabolizable Energy ◽  
Available P ◽  
Available Phosphorus ◽  
Poultry Diets

Abstract The objective of this work was to evaluate the effect of the use of hybrid phytase, alone or combined with carbohydrases, in poultry diets with nutritional reductions of calcium, available phosphorus, and metabolizable energy on the nutrient digestibility and bone quality of broiler chickens. A total of 1,875 broilers were distributed in five treatments in a completely randomized design, with 15 replicates of 25 chickens each. The treatments consisted of a positive control feed (T1) and of four negative controls (T2 to T5): T1, basal diet (BD) with corn and soybean; T2 and T3, BDs with reductions of 70 and 100 kcal kg-1 metabolizable energy, respectively, and both with reductions of 0.16% Ca and 0.15% available P; and T4 and T5, BDs with the same nutritional reductions, but supplemented with enzymes, i.e., T4 = T2 + 500 phytase units (FTU) per kilogram and T5 = T3 + 500 FTU kg-1 + 560 xylanase units (TXU) per kilogram + 250 glucanase units (TGU) per kilogram. The use of 500 FTU kg-1 hybrid phytase in pelleted corn-soybean meal diets allows a good digestive performance by broilers and replaces the nitrogen-corrected apparent metabolizable energy at 70 kcal kg-1, as well as 0.16% Ca and 0.15% available P.

scholarly journals CONSTRAINTS FACED DURING THE PRODUCTION AND MARKETING OF CABBAGE AND POTATO CROPS: A COMPARATIVE STUDY OF MANIPUR AND NAGALAND STATES OF INDIA

2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Th. Motilal Singh ◽  
Amod Sharma
Keyword(s):  
Sampling Technique ◽  
High Price ◽  
Pests And Diseases ◽  
Wage Rates ◽  
Unskilled Labour ◽  
Distant Market ◽  
Potato Crops ◽  
Ranking Technique ◽  
Cost Of Transportation

The present study was carried out by purposively simple stratified random sampling technique to select 300 respondents from both the states of Manipur and Nagaland, while to highlight the constraint faced by the growers during the production and marketing of cabbage and potato crops with Garrett Ranking Technique. For the production viz.; seed, labour, manures and fertilizers, irrigation, PPCs and other issues like animals, pests and diseases, have hampered of the potato and cabbage in the selected areas. While for marketing high price of the seed, not available in time, inferior quality of seed, low reliability of the seed, high wage rates of labour, skill & unskilled labour not available in time, irrigation facility not available, perennial sources are not available and irrigation facility not reliable etc; While for the market related issues, grading by hand & mechanical means, lack of knowledge regarding packaging, packing materials, high cost of transportation, lack of market infrastructures, unauthorized & illegal tax collections, use of improper scales in weighing, lack of support prices, lack of reliable & timely availability of market information and distant market along with the lack of cooperation among the producers and frequent ban & social boycott are some of the problems and constraints encountered by the entire producers and market intermediaries in the region.

scholarly journals The Influence of the Poles’ Lifestyle on the Quantity and Quality of Municipal Wastewater

2021 ◽  
Vol 31 (3) ◽  
pp. 265-275
Author(s):  
Ewelina Płuciennik-Koropczuk ◽  
Martyna Myszograj ◽  
Sylwia Myszograj
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Organic Compounds ◽  
Municipal Wastewater ◽  
Personal Care ◽  
Total N ◽  
Qualitative Characteristics ◽  
Total P ◽  
Wastewater Treatment Systems

Abstract The article presents lifestyle as an important factor determining the quantity and quality of municipal wastewater. The characteristic of wastewater in Poland has changed significantly in recent years. The qualitative characteristics of municipal wastewater indicate an increase of organic compounds and in the scope of micro-contaminants identified in them, e.g. nanoparticles, microplastics, pharmaceutical and personal care products or heavy metals. Therefore, the knowledge of parameters such as: BOD5, COD, total N, total P and suspension solids is no longer sufficient for the design and operation of wastewater treatment systems. Comprehensive research in this area is necessary to select those indicators that better describe the characteristics of wastewater.

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