Gross margin comparison of cultivation of different legume species in the organic farming system

Received: February 7th, 2021 ; Accepted: April 10th, 2021 ; Published: April 29th, 2021 ; Correspondence: [email protected] order to identify the most suitable varieties for organic farming, the Institute of Agricultural Resources and Economics in 2018 started study four legume species. The independent variables of the study were the legume genotypes: faba bean (Vicia faba L., cv. ‘Isabell’, ‘Lielplatone’, ‘Laura’, ‘Boxer’), field pea (Pisum sativum L, cv. ‘Astronaute’, ‘Bruno’, ‘Rebekka’, ‘Zaiga’), narrow lupine (Lupinus angustifolius L., cv. ‘Sonet’, ‘Probor’, ‘Derliai’, ‘Haags Blau’), and soya (Glycine max L., cv. ‘Annucha’, ‘Sculptor’, ‘Augusta’). The soil types of the experimental organic field were sod–podzolic, sandy loam, and loamy sand. At the start of the study the organic substance concentration was 15–18 mg kg-1 , pHKCl was 5.3–5.98, the concentration of plant - available phosphorus (P205) was 133.2–182.9 mg kg-1 , and the concentration of potassium (K2O) - 69.2–109.7 mg kg-1 . Green manure (buckwheat) was a pre-crop, incorporated in autumn. For the comparison of economic indicators, the gross coverage calculation was used, which based on the difference obtained by subtracting variable costs from the valuation of gross output. All variable costs and revenues were included in the gross margin calculation without value added tax. The study indicated large differences in yields between genotypes. From the economic point of view, the most suitable cultivars for cultivation according to the organic farming method were: field beans - ‘Isabell’ and ‘Lielplatone’ with average gross cover (GC), 505.40 and 504.60 EUR, respectively, field peas - ‘Bruno’ (GC 379.60 EUR), narrow-leaved lupin - ‘Derliai’ (GC 647.70 EUR), soybeans - ‘Sculptor’ (GC 204.40 EUR). Among the legume species studied, lupine showed the highest economic performance, among the genotypes - cultivar ‘Derliai’ (α = 0.05)

Effect of sapropel fertilizer on the quality of the yield of some field crops

Received: February 21st, 2023 ; Accepted: May 8th, 2023 ; Published: May 22nd, 2023 ; Correspondence: [email protected] is specific water body sediments containing a high level of organic matter formed from remains of water biota mixed with mineral components. One of the most promising utilisation ways of sapropel is agriculture where it can be used as soil amendment to improve soil physical properties and thus obtain economically viable and high quality yield of field crops. For three years the experiments were conducted at Priekuli Research Centre of the Institute of Agricultural Resources and Economics. Dehydrated sapropel mass from Lake Bizas was studied as soil biological fertilizer to determine its suitability for use in field crop production. Researches were carried out in organic crop rotation, in the fields of potato, winter rye and field bean. Three different doses of sapropel fertilizer were applied. During the three-year period (2020–2022), the yield indicators of the plant species included in the study were evaluated, and the quality of the yield of these species was assessed. The results of research confirm the positive effect of sapropel on yield quality indicators - protein (field beans), starch (potatoes) falling number and 1,000 seed mass (winter rye)

Association of variants in the CP, ATOX1 and COMMD1 genes with Wilson disease symptoms in Latvia

Funding Information: This study was partially financed by a grant of Riga Stradins University, Department of Doctoral studies and grant of Roche Academy. Funding Information: Funding . This study was partially financed by a grant of Riga Stradiņš University, Department of Doctoral studies and grant of Roche Academy. Publisher Copyright: © 2019 Zarina A, Tolmane I, Krumina Z, Tutane AI, Gailite L, published by Sciendo.Wilson's disease (WD) is a copper metabolism disorder, caused by allelic variants in the ATP7B gene. Wilson's disease can be diagnosed by clinical symptoms, increased copper and decreased cerulopasmin levels, which could all also be by other genetic variants beyond the ATP7B gene, e.g., disturbed ceruloplasmin biosynthesis can be caused by pathogenic allelic variants of the CP gene. Copper metabolism in the organism is affected by several molecules, but pathogenic variants and related phenotypes are described with COMMD1 and ATOX1 genes. The aim of the study was to test other genes, CP, ATOX1 and COMMD1, for possible influence to the manifestation of WD. Patients were enrolled on the basis of Leipzig's diagnostic criteria, 64 unrelated patients with confirmed WD. Direct sequencing of promoter region of the CP gene and ATOX1 and COMMD1 gene exons was conducted. Statistically significant differences were found between the two variants in the CP gene and the ATP7B genotype (rs66508328 variant AA genotype and the rs11708215 variant GG genotype) were more common in WD patients with an unconfirmed ATP7B genotype. One allelic (intronic) variant was found in the ATOX1 gene without causing the functional changes of the gene. Three allelic variants were identified in the COMMD1 gene. No statistically significant differences were found between allele and genotype frequencies and the first clinical manifestations of WD. Different variants of the CP gene contributed to a WD-like phenotype in clinically confirmed WD patients with neurological symptoms and without identified pathogenic variants in the ATP7B gene. Allelic variants in the ATOX1 and COMMD1 genes do not modify the clinical manifestation of WD in Latvian patients.publishersversionPeer reviewe

Cardiovascular Pharmacogenomics and Cognitive Function in Patients with Schizophrenia

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138379/1/phar1968_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/138379/2/phar1968.pd

Optimal planning of renewable energy-integrated electricity generation schemes with CO2 reduction target

This paper presents a Mixed Integer Linear Programming (MILP) model that was developed for the optimalplanning of electricitygenerationschemes for a nation to meet a specified CO2 emission target. The model was developed and implemented in General Algebraic Modeling System (GAMS) for the fleet of electricitygeneration in Peninsular Malaysia. In order to reduce the CO2 emissions by 50% from current CO2 emission level, the optimizer selected a scheme which includes Integrated Gasification Combined Cycle (IGCC), Natural Gas Combined Cycle (NGCC), nuclear and biomass from landfill gas and palm oil residues. It was predicted that Malaysia has potential to generate up to nine percent of electricity from renewableenergy (RE) based on the available sources of RE in Malaysia

Problematic weed species in organic arable agriculture around the Baltic Sea - an expert database

Weeds are a perpetual challenge in Organic agriculture. However, they serve multiple ecosystem services and a low competitive weed cover can be tolerated. Adding to this, is the fact that only a few species prove problematic for both the crop and the farmer. The international PRODIVA project researches the effect of crop diversity strategies on the diversity of weed communities, hypothesizing that by increasing the weed diversity, the development of problematic weeds will mitigated. A preparatory study was conducted to list the most problematic weed species in spring sown cereals in the countries involved with PRODIVA. For this a literature review was conducted in all participating countries, collecting local sources including grey literature. This was combined with the opinion of local extension services and other weed experts. From this a list of 10 most problematic weeds was deducted for each country. We found both annual and perennial species to be mentioned as problematic. A majority of the more problematic species were shared between countries, such as Cirsium arvensis, Elitrigia repens and Chenopodium album. Still, all countries revealed to have individual weed challenges as well. These findings are published as a folder that will be available to local stakeholders

Carbon and nitrogen uptake in above- and below-ground biomass of cereal crops in the integrated farming system

Received: February 1st, 2023 ; Accepted: April 8th, 2023 ; Published: April 24th, 2023 ; Correspondence: [email protected] significant reduction in greenhouse gas (GHG) emissions, as well as technologies that ensure removal of CO2 from the atmosphere, are necessary to achieve the set goals for the transition to carbon neutrality. During the crop growth cycle, a significant amount of biomass is produced, and carbon (C) and nitrogen (N) are captured both by the harvested crop removed from the field and by residues left on the field. The trials were conducted to find out patterns between crop and residues while trying to figure out the amount of captured C and N. In this study data of the most widely grown cereal crops in Latvia are summarized. The data are representative, obtained in different agroclimatic conditions, they vary both by species and variety, by year and fertilizers applied. The mean amount of biomass from cereal crops left on the field was 1,070.9 g m-2 DM, besides, 906.7 g m-2 of that was made up of above-ground (AG) residues and 164.2 g m-2 of below-ground (BG) residues. On average, 471.8 g m-2 C and 14.3 g m-2 N were captured, including: 411.2 g m-2 C and 12.9 g m-2 N by AG residues; 60.7 g m-2 C and 1.4 g m-2 N by BG residues. Regularities between grain yield and residues were found, however, they were not very strong. The dataset should be enlarged to reduce uncertainty. As the data calculated from crop have a greater uncertainty, the GHG inventory should be calculated according to the average AG and BG biomass, which provide more accurate data

Prevalence of endoparasitic infection in captive macaques in Kerala zoos

The study was conducted in three macaque species namely Lion-tailed macaque (Macaca silenus), Rhesus macaque (Macaca mulatta) and Bonnet macaque (Macaca radiata) in the zoos of Kerala. Faecal samples were collected from individual macaques kept in open enclosures and retiring cages. The samples were examined by sedimentation method for assessing the endoparasitic infection and its prevalence percentage in captive macaques. The degree of infection was assessed by faecal egg counts of samples by McMaster technique. The study found zero prevalence of strongyles in Lion-tailed macaques; 20 per cent in Rhesus macaque and 100 per cent in Bonnet macaques. The eggs per gram of strongyles in Rhesus macaques were 100 ± 39.22 and in Bonnet macaques were 312 ± 47.94. The prevalence of coccidia was 16.6 per cent in Lion-tailed macaques; 40 per cent in Rhesus macaque and 100 per cent in Bonnet macaques. The oocysts per gram of coccidia in Lion-tailed macaques were 166 ± 98.88; in Rhesus macaques were 200 ± 89.44 and in Bonnet macaques were 1850 ± 53.54. The present study revealed the higher prevalence and degree of infection of coccidia and strongyles in Bonnet macaques when compared to the other two macaque species

Effect of fossil fuel price fluctuations on electricity planning comprising renewable energy

Electricity generation mix in Malaysia largely relies on fossil fuel including coal, natural gas (NG), diesel and fuel oil. In the Ninth Malaysia Plan, the government aims to achieve 5% electricity generation mix from renewable energy (RE). Nevertheless, until now, RE contributes less than 1% of the national electricity generation mix. In spite of its emission benefits, NG prices volatility have encouraged calls for investments in RE. Unfortunately, NG price in Malaysia is highly subsidized, thereby making RE implementation unattractive. This article addresses the impact of NG price (with and without subsidies) on RE-integrated electricity generation in Malaysia. The results show that a small increment in NG price will not affect the selection of RE source for electricity generation. If RE electricity generation is chosen, it will slightly increase the cost of electricity (COE) by 2.2 cents/kWh. Without NG subsidies, this cost can be translated to an additional 3 cents/kWh of CO