scholarly journals Conditions of development of weeds, pests and diseases in crops of monoculture of hemp, depending on fertilizer

2018 ◽  
pp. 66-80
Author(s):  
Mykola Myhal ◽  
Iryna Layko ◽  
Serhiy Mishchenko ◽  
Hanna Kyrychenko ◽  
Hanna Layko ◽  
...  
Keyword(s):  
Disease Control ◽  
Flowering Plants ◽  
High Yield ◽  
Mineral Fertilizers ◽  
Pests And Diseases ◽  
Weed Seeds ◽  
Long Time

The article presents the results of studies of the conditions for the development of weeds, pests and diseases in the sowing of hemp monoculture. It was found that hemp is well adapted for growing for a long time in one field, providing a high yield of hemp production. It is recommended to grow a monoculture on fiber (harvesting in the phase of flowering plants). This makes it possible to avoid the ripening of seeds of the bulk of weeds and the main periods of harmfulness of pests and diseases. Differences in the degree of weediness of the field were revealed depending on the form and dose of fertilizers. In areas fertilized with manure, there are more weeds than in areas with introduced fertilizers. The large contamination of the fertilized areas is a consequence of the introduction of viable weed seeds together with manure, which is not properly harvested and stored in field shoulders. With an increase in the dose of manure, the number of weeds increases, and an increase in the dose of mineral fertilizers with which weed seeds are not introduced, on the contrary, decreases as a result of an increase in the height of the stalk and its foliage. This is clearly confirmed by the fact that during the period from 3-4 pairs of leaves and to the phase of flowering plants, a large number of weeds die. Indicated on agrotechnical methods of weed, pest and disease control when growing hemp monoculture.

Modelling uranium leaching from agricultural soils to groundwater as a criterion for comparison with complementary safety indicators

2006 ◽  
Vol 932 ◽  
Author(s):  
D. Jacques ◽  
J. Šimůnek ◽  
D. Mallants ◽  
M.Th. van Genuchten
Keyword(s):  
Soil Profile ◽  
Reactive Transport ◽  
Transport Model ◽  
Agricultural Soils ◽  
Solid Phase ◽  
Water Flux ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Deep Soil ◽  
Long Time

ABSTRACTNaturally occurring radionuclides can also end up in soils and groundwater due to human practices, such as application of certain fertilizers in agriculture. Many mineral fertilizers, particularly (super)phosphates, contain small amounts of 238U and 230Th which eventually may be leached from agricultural soils to underlying water resources. Field soils that receive P-fertilizers accumulate U and Th and their daughter nuclides, which eventually may leach to groundwater. Our objective was to numerically assess U migration in soils. Calculations were based on a new reactive transport model, HP1, which accounts for interactions between U and organic matter, phosphate, and carbonate. Solid phase interactions were simulated using a surface complexation module. Furthermore, all geochemical processes were coupled with a model accounting for dynamic changes in the soil water content and the water flux. The capabilities of the code in calculating natural U fluxes to groundwater were illustrated using a semi-synthetic 200-year long time series of climatological data for Belgium. Based on an average fertilizer application, the input of phosphate and uranium in the soil was defined. This paper discusses calculated U distributions in the soil profile as well as calculated U fluxes leached from a 100-cm deep soil profile. The calculated long-term leaching rates originating from fertilization are significantly higher after 200 years than estimated release rates from lowlevel nuclear waste repositories.

scholarly journals Effect of Different Growing Systems of Apple on Trunk and Branch Diseases and Pests

2012 ◽  
Vol 40 (2) ◽  
pp. 159 ◽  
Author(s):  
Maria BOROVINOVA ◽  
Vilina PETROVA ◽  
Svetla MANEVA
Keyword(s):  
Experimental Period ◽  
Apple Orchard ◽  
Mineral Fertilizers ◽  
Conventional System ◽  
Apple Trees ◽  
Pests And Diseases ◽  
Botryosphaeria Obtusa ◽  
Apple Production ◽  
The Mean ◽  
Important Disease

The presented study aimed to determine apples trunk and branch diseases and pests in three growing systems conventional, integrated and biological (organic). The investigations were made on an experimental apple orchard (1 ha) of the Institute of Agriculture at Kyustendil, Southwest Bulgaria in four consecutive years from 2007 to 2010. Three scab resistant cultivars Prima, Florina and Erwin Baur grafted on rootstocks MM106 were planted in 1996. The orchard was divided into four plots. One plot was treated conventionally with a normal pesticide programme, two plots were treated integrated according to the general principles, rules and standards of integrated apple production and one plot for biological (organic). The monitoring of pests and diseases and assessment of their density were done every two weeks. It was established that during the experimental period important disease and pests on apple trees in different growing systems were black rot Botryosphaeria obtusa, apple clearwig moth Synanthedon myopaeformis and shorthole borer Scolytus rugulosus. The damages by trunk and branch diseases and pests on apple were considerable higher in biological growing system. The mean rate of attack of cultivar Erwin Baur by Botryosphaeria obtusa in biological and conventional growing systems was 52.35% and 4.65%, respectively. The percentage of damaged by Scolytus rugulosus trunk and branch area per tree reach to 58.74 in biological and 0.23 in conventional system. Reduced vitality of apple trees growing with out pesticides and mineral fertilizers in biological growing system was the reason for strong infection of Botryosphaeria obtusa and attack of Synanthedon myopaeformis and Scolytus rugulosus.

scholarly journals Productivity and Yield Quality of Intersubspecies Crossing of Japonica-Indica

2018 ◽  
Vol 24 (1) ◽  
pp. 19
Author(s):  
Sobrizal Sobrizal ◽  
Carkum Carkum ◽  
Wijaya M. Indriatama ◽  
Aryanti Aryanti ◽  
Ita Dwimahyani
Keyword(s):  
Genetic Variability ◽  
Amylose Content ◽  
Rice Production ◽  
High Yield ◽  
Food Crops ◽  
Milled Rice ◽  
Rice Varieties ◽  
Pests And Diseases ◽  
Self Sufficiency ◽  
Yield Quality

<p>In the middle of 1980s, rice self-sufficiency in Indonesia has been achieved, but the growth of rice production slowed down since the 1990s. Narrow genetic variability of released rice varieties contributed largely to the occurrence of leveling of potential rice yield over the past decades. To enlarge the genetic variability, an intersubspecies crossing of Koshihikari (japonica) and IR36 (indica) has been performed. Through this crossing, three high yielding and high yield quality promising lines of KI 37, KI 238, and KI 730 have been obtained. The objective of this study was to evaluate the superiorities of these lines through multi-location yield trials, pests, diseases, and grain qualities examinations. Examination methods used followed the release food crops variety procedure issued by the Indonesian Ministry of Agriculture. The result of examinations showed that the average yield of KI 730 was 7.47 t/ha, it was significantly higher than that of Ciherang (6,73 t/ha). KI 730 has a good grain quality, with translucent milled rice, a high percentage of milled rice (78.0%) and head rice (91.01%). The texture of its cooking rice was soft, sticky, with the amylose content of 20.41%. In addition, pests and diseases resistances of KI 730 were better than those of other lines tested. After evaluation by National Food Crops Release Variety Team, the KI 730 line was released as a national superior variety with the name of Tropiko. Tropiko should become an alternative variety to grow widely in order to increase national rice production and farmers income.</p>

scholarly journals The role of organic farming in the formation of the harvest and the nutrition value of potatoes on unused arable lands and fallow lands of Altay Region (Western Siberia)

2017 ◽  
Vol 7 (4) ◽  
pp. 388-392
Author(s):  
D. A. Durnikin ◽  
O. Y. Voronkova ◽  
V. A. Kundius ◽  
L. I. Petrova
Keyword(s):  
Organic Farming ◽  
Western Siberia ◽  
Comprehensive Evaluation ◽  
Weather Conditions ◽  
Climatic Conditions ◽  
Mineral Fertilizers ◽  
Pests And Diseases ◽  
Altai Region ◽  
Fallow Lands

<p>In the article, a comprehensive evaluation of the role of organic farming in the formation of the crop and the nutritional value of perspective varieties cultivated within the climatic zone of Western Siberia is considered. The most favorable conditions for growing potatoes in the Altai Region of the Western Siberia are compared with other regions of Russia and those of foreign countries.<br />In the southern and southeastern regions of the Altai region, where the formation of tubers coincides with the hot period of the first half of summer, the high soil temperature negatively affects the eyes of the tubers. Therefore, the seed material here rapidly degenerates. To avoid this, summer potatoes are planted. Irrigation ensures high and stable potato yields irrespective of weather conditions. Moisture content of soil during the period from planting potatoes to shoots should be maintained at the level of 65-70 per cent, in the budding and flowering phases - of 75-85 per cent and during the period from the beginning of wilting of potato tops – of 60-65 per cent. The number of irrigations, their terms and standards, are determined by taking into account soil-climatic conditions, the phase of plant development and the application area of a crop.<br />The most effective irrigation method is sprinkling. The irrigation norm ranges from 500 to 800 m3 per hectare. On irrigated lands, plowing of potato fields is carried out necessarily with a soil cultivator, preventing the formation of a plow pan. Rows are located across the slope, or angle-wise. After watering space between rows are loosened (on heavy soils also before watering). During irrigation process it is necessary to apply higher quantities of organic and mineral fertilizers and to carry out a set of measures to control weeds, pests and diseases of potatoes.<br /><br /></p>

scholarly journals Ensete ventricosum: A Multipurpose Crop against Hunger in Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Getahun Yemata
Keyword(s):  
Drug Loading ◽  
Scientific Information ◽  
High Yield ◽  
High Genetic Diversity ◽  
Research Attention ◽  
Ensete Ventricosum ◽  
Fermented Product ◽  
Wide Range ◽  
Long Time ◽  
Comparable Quality

Ensete ventricosum is a traditional multipurpose crop mainly used as a staple/co-staple food for over 20 million people in Ethiopia. Despite this, scientific information about the crop is scarce. Three types of food, viz., Kocho (fermented product from scraped pseudostem and grated corm), Bulla (dehydrated juice), and Amicho (boiled corm) can be prepared from enset. These products are particularly rich in carbohydrates, minerals, fibres, and phenolics, but poor in proteins. Such meals are usually served with meat and cheese to supplement proteins. As a food crop, it has useful attributes such as foods can be stored for long time, grows in wide range of environments, produces high yield per unit area, and tolerates drought. It has an irreplaceable role as a feed for animals. Enset starch is found to have higher or comparable quality to potato and maize starch and widely used as a tablet binder and disintegrant and also in pharmaceutical gelling, drug loading, and release processes. Moreover, enset shows high genetic diversity within a population which in turn renders resilience and food security against the ever-changing environmental factors and land use dynamics. Therefore, more research attention and funding should be given to magnify and make wider use of the crop.

scholarly journals Cacao breeding in Bahia, Brazil: strategies and results

2011 ◽  
Vol 11 (spe) ◽  
pp. 73-81 ◽  
Author(s):  
Uilson Vanderlei Lopes ◽  
Wilson Reis Monteiro ◽  
José Luis Pires ◽  
Didier Clement ◽  
Milton Macoto Yamada ◽  
...  
Keyword(s):  
Breeding Program ◽  
High Yield ◽  
Breeding Strategies ◽  
Long Time

Cacao was introduced in Bahia in 1756, becoming later the largest producer state in the country. In order to support the planting of cacao in the region, a breeding program was established by CEPEC at the beginning of the 1970s. For a long time, the program consisted in testing new hybrids (full-sibs) and releasing a mixture of the best ones to farmers. Lately, particularly after the witches´ broom arrival in the region, in 1989, recurrent breeding strategies were implemented, aiming mainly the development of clones. From 1993 to 2010, more than 500 progenies, accumulating 30 thousand trees, were developed by crossing many parents with resistance to witches´ broom, high yield and other traits. In this period, more than 500 clones were put in trials and 39 clones and 3 hybrids were released to farmers. In this paper the strategies and results achieved by the program are reviewed. Overall the program has good interface with pathology and genomic programs.

Hard Kaolin High Yield and Stoping Technology in Suoli Mine

2012 ◽  
Vol 170-173 ◽  
pp. 403-408
Author(s):  
Ren Shu Yang ◽  
De Jun Meng ◽  
Dong Ming Guo ◽  
Peng Xu ◽  
Yan Bing Wang
Keyword(s):  
Production Efficiency ◽  
Working Condition ◽  
High Yield ◽  
Unit Consumption ◽  
Rock Support ◽  
Construction Technique ◽  
Geological Conditions ◽  
Long Time ◽  
Efficient Construction ◽  
Mechanical Mining

The backward blasting of the mine technology and stoping technology will lead to a long time of blasting, high labor intensity and low production efficiency, which also cause roof collapse and the blast of fly rock, support fall and overthrowing the chain-trigger, which cause a larger hidden of production. Through using the mechanical mining technology of the high yielding and efficiency of kaolin, which fundamentally improve the working conditions of workers and safety working condition, will laid the foundation for the increasing of production and efficiency. The production has been promoted from 250-300t/d to 550-650t/d now, which the efficiency is increasing more than 120%. Meanwhile, the optimal of blasting parameters is benefit to roof control after blasting, which can improve the efficiency of blasting, reduce the unit consumption of dynamite, which can save about 0.115kg/ m3; and reduce the intensity of the workers and the damage of the support. This construction technique can provides a reference significance for safe and efficient construction of the mine under similar geological conditions.

scholarly journals Innovative Technologies in Agriculture

2019 ◽  
Vol 8 (4) ◽  
pp. 3802-3807
Keyword(s):  
Environmental Sustainability ◽  
Agricultural Production ◽  
Production Systems ◽  
Nutrient Deficiency ◽  
Mineral Fertilizers ◽  
Information Control ◽  
Agricultural Producers ◽  
Innovative Technologies ◽  
Pests And Diseases ◽  
System Of Fertilizers

Agriculture is a key industry for solving problems on food security, economic and environmental sustainability. Due to this, issues of restoring the industry intensity are becoming vital. In the article it is emphasized that this process should be implemented through an evolutionary transition to the fifth technological mode. This implies bringing the number of agricultural machinery to standard values and its subsequent equipping with means of information control over the operation of all technical systems, as well as parallel driving. The search for ways to restore soil fertility by using biologization of agriculture is becoming highly relevant under the conditions of increasing toxicity of chemical mineral fertilizers remaining in soils, the acute imbalance and nutrient deficiency. The Russian agriculture should be reindustrialized by using achievements of biotechnology. The use of the biological product system of fertilizers and the protection of plants from pests and diseases should result in the widespread development of the organic agricultural production. However, the availability of innovative technologies remains low for most agricultural producers. The reason for this situation is the low intensity of the reproduction process in the industry, accompanied by low profitability of agribusiness. The state should motivate the transition to innovative agricultural production technologies. On the one hand, it should initiate the creation of enterprises on producing resources for using innovative technologies in agriculture, and on the other hand, – regulate the intersectoral redistribution of the created value, avoiding the “zero” profitability of production among participants of production systems, and, on the third hand, – maintain or increase the profitable part of the budget

scholarly journals The Necessity to Keep Taking Health Protocols in People Receiving the Covid-19 Vaccine

2021 ◽  
Author(s):  
Mina Aghaei ◽  
Masud Yunesian
Keyword(s):  
Public Health ◽  
Disease Control ◽  
Preventive Measures ◽  
The World ◽  
Control And Prevention ◽  
Long Time ◽  
Centers For Disease Control

Although the vaccination has begun in many countries around the world, experts declare that there is a long way to go in coronavirus battle, and it will take a long time for the vaccine to have a significant effect.  Therefore many questions have arisen about “the necessity to keep taking health protocols” and “how long does it take for people to return to normal activities and reduce or even abandon health protocols after receiving the Covid-19 vaccine”. According to CDC (Centers for Disease Control and prevention) reports, significant immunity is expected to occur approximately 2 weeks after receiving the second dose of the vaccine, however getting the vaccine does not mean the end of public health and preventive measures, and all full vaccinated people need to keep taking all health protocols and precautions for the reasons discussed in this letter to editor.

scholarly journals Energy-Saving Method For Growing Root Chicory With Combined Row Space

2019 ◽  
Author(s):  
O. Tkach
Keyword(s):  
Energy Saving ◽  
Research Area ◽  
Agricultural Science ◽  
High Yield ◽  
Mineral Fertilizers ◽  
Row Spacing ◽  
Yield Increase ◽  
Chicory Root ◽  
Experimental Field ◽  
Root Crops

Obtaining a high yield of root chicory is determined by the optimal density of plants and their uniform distribution on the field, in this regard, the study of the method of growing root chicory is an important research area in modern agricultural science and is the study goal. Phenological observations, biometric studies were carried out according to the methods of Mosesychenko, M. F. Trifonova, A. Kh Zaviryukha. The material of the investigations was the soil of the experimental field – podzolic chernozem , medium loamy in forest-like loam. Root chicory plants were used as objects of research. The studies were conducted at the experimental field of the Khmelnitsky State Agricultural Experimental Stations of the Institute of Feed Research and Agriculture of Podillya NAAS during 2010–2014. The proposed energy-saving method for growing chicory root crops with a combined row spacing provides yield increase of chicory root crops, due to the fact that the placement of sowing after optimal predecessors, the introduction of organic and mineral fertilizers, sowing according to the established scheme by alternating the main and technological row spacing is carried out in accordance with the width of the sowing unit, which provides the optimal nutritional area of each plant close to the square with the corresponding sheniem parties established by a formula taking into account the need to make optimum density of plants per unit area (hectare) at the beginning of the collection, thus improving the productivity of root crops to 5-6 tons per hectare; mechanized crop care with a combined row spacing according to the established rational scheme of movement of the undercarriage of the unit along the main and technological row spacing allowed to reduce damage to plants by the energy tool undercarriage and increase the productivity of the unit by 15-20%; harvesting tops and root crops in a continuous way with a rational grip width of harvesting aggregates with a combined row spacing allowed to reduce losses of root crops by 1.5-2.0 times. The technological result consists in the fact that sowing, mechanized care of crops and harvesting is carried out by sending the running gear of energy resources along the technological, “M” aisles, and the machine wheels along the main “m” aisles.

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