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Precision seeding

Xem 1-20 trên 23 kết quả Precision seeding
  • This study applied an advanced MethyLight approach for precise detection of cytosine methylation. Chernobyl area is still contaminated by long-lived radioisotopes thus the potential risk of DNA damage by radiation remains relatively high.

    pdf3p mudbound 10-12-2021 6 0   Download

  • Open-field farming involves successive major processes such as preparation of soil, planting the seed, adding pesticides and fertilizers, irrigation, cultivation, and harvest. The main aim of all processes is to achieve maximum yield out of the available agricultural landscape. It is necessary to collect geo-referenced descriptive data on soil characteristics, such as soil penetration resistance and electrical conductivity before starting all these processes.

    pdf15p hanthienngao 30-11-2021 8 1   Download

  • Seed weight is a complex yield-related trait with a lot of quantitative trait loci (QTL) reported through linkage mapping studies. Integration of QTL from linkage mapping into breeding program is challenging due to numerous limitations, therefore, Genome-wide association study (GWAS) provides more precise location of QTL due to higher resolution and diverse genetic diversity in un-related individuals.

    pdf14p vijichea2711 28-05-2021 4 0   Download

  • Precision agriculture is the application of technologies and principles to manage spatial and temporal variability associated with all aspects of agricultural production for the purpose of improving crop performance and environmental quality.

    pdf7p angicungduoc8 07-11-2020 4 0   Download

  • For the uniform seeding over the field, the performance of seed metering device is vital. While a seed drill is on work, during the field operation undesired situation such as slipping and skidding of the ground wheel, vibration, seizing, and jamming on the chain-sprocket system may occur especially at high speed. To overcome these problems, it was aimed to develop an electronically controlled Seed metering system (ECSMS) for seed drill.

    pdf11p caygaocaolon6 30-07-2020 3 0   Download

  • Caffeine (1,3,7-trimethylxanthine) is naturally found in the leaves, seeds or fruits of over 63 plants species worldwide. It is contained highly in coffee, tea, cacao beverage products. Caffeine showed good effects in enhancing performance and perception of exercise, reducing fatigue and drowsiness, and improving memory and learning effects. Although caffeine intoxications are rare, they showed its unhealthy potential factor, resulting in tachycardia, atrial arrhythmias, convulsions or even coma.

    pdf7p angicungduoc5 13-06-2020 8 0   Download

  • The study was under taken to design and develop a mechanical and electronic precision planter for paddy direct seeding and compared for optimum seed rate, germination, seed placement index and spacing. The comparison o of two methods was done in terms of seed rate, spacing and seed placement index The observe seed rate, spacing and seed placement index values of mechanical and electronic methods were 22.7 kg/ha, 14.4 cm and 74.3% and 19.97 kg/ha, 14.8 cm and 86.39%, respectively.

    pdf11p trinhthamhodang1213 30-05-2020 3 1   Download

  • A five row animal drawn multi-crop planter was developed at the SV College of Agricultural Engineering and Technology, IGKV, Raipur and it was evaluated for its performance by conducting lab tests and field trials. The tests comprised of the determination of average weight of seeds discharged, percentage damage of seeds, calibration of a planter, field performance studies and average depth of placement of seeds.

    pdf5p quenchua4 16-04-2020 6 0   Download

  • Proper tillage, precise placement and optimum coverage of seeds and fertilizers in the moist zone of soil are most critical for successful crop establishment. The present work was therefore taken up to study the soil coverage in the furrow with a developed furrow covering device with shovel and shoe type furrow opener. Experiments were conducted in the test soil bin with the three types of furrow openers like plain shovel, shovel with shoe and shovel+shoe+covering attachment with load of 5 kg to determine the performance on soil coverage and draft requirement.

    pdf10p trinhthamhodang4 22-03-2020 2 0   Download

  • India uses only 10% agricultural equipment’s as conducted survey in Year 2012. Now a day’s India has second rank worldwide in farm output. Agriculture like forestry and fishers accounted for 13.7GDP (Gross Domestic Product) in 2013, about 50% of the total man power. Precision sowing has been a major thrust of agricultural engineering research for many years; however, most of the research and development work has dealt with seeders for agronomic crops. A seeder should place a seed in an environment in which the seed will reliably germinate and emerge.

    pdf7p caygaocaolon2 14-03-2020 5 1   Download

  • Design, development and evaluation of zero-till-slit seed drill were carried out in ricewheat crop rotation. The field performance of the zero-till-slit seed drill was evaluated and compared to the combined tillage and seeding equipment, zero-till seed drill, roto-till seed drill, strip-till seed drill and improved conventional seed drill, The field experiment was carried out following the statistically designed slit drill was with split-split-split plot design.

    pdf18p nguathienthan2 26-12-2019 10 2   Download

  • A seed metering mechanism of conventional precision planters are usually driven by ground wheel with chain and sprocket system and these mechanisms are of mechanical type. They are less efficient as there is a number of losses while transmitting the power. Due to continuous friction between moving parts, these devices are subjected to wear and tear; hence they require frequent maintenance. To improve the planting performance of precision planters, the best substitute is to develop an electronic meterized planter for maize.

    pdf9p quenchua2 15-12-2019 6 1   Download

  • In agriculture profession high output is demanded with limited resources and machines are the costlier investment to the agriculture for a marginal and poor farmer. The accuracy and precision of an agricultural machine can be increased using the electronics and computing systems however it increases the cost of the machines. In spite of costlier investments, many researchers have been conducted the study on mechatronics application in precise sowing operation in recent years.

    pdf15p quenchua2 15-12-2019 4 1   Download

  • An experiment was conducted during rabi 2016 and kharif 2017 to the study effect of precision farming technologies including fertigation and black polythene mulching to know the effect on growth yield and quality of okra seeds of var. ArkaAnamika. The experiment consisted often treatments was laid out in a Randomised Block Design (RBD) with three replications. The maximum seed yield (14.05 q/ha), 100 seed weight (7.29g), germination percentage (94.33 %), germination speed (24.68), vigour (19.77), vigour index (3841.31) and shoot and root length (27.30 & 13.

    pdf7p kethamoi2 15-12-2019 6 0   Download

  • An experiment was conducted during rabi 2016 to the study effect of precision farming technologies including fertigation and black polythene mulching to know the effect on growth, yield and quality of okra [Abelmoschus esculentus (L.) Moench] seeds var. Arka Anamika at ICAR-Indian institute of Horticultural Research Hesaraghatta, Bengaluru. The experiment consisted of ten treatments were laid out in a Randomised Block Design (RBD) with three replications. The maximum plant height (115.52 cm), number of branches (3.10), stem girth (4.76 cm), leaf area index (2.

    pdf6p cothumenhmong1 11-12-2019 7 1   Download

  • At the present time, the most widely used machine for seed and oilseed planting is a seed drill with a roller-type-metering device. Due to nonuniform spacing of seeds along the rows and lack of control on planting depth, this machine aggravates the growth related problems and degrades the quality of a sensitive crop such as oilseed rape.

    pdf8p aquaman27 15-01-2019 19 0   Download

  • The aim of this study was to develop a computerized measurement system (CMS) combined with a sticky belt test stand for examining in-row seed spacing distribution accuracy.

    pdf11p masterbarista 15-01-2019 4 0   Download

  • Currently the most widely used machine for precision seeding of cotton and maize seed is vacuum type. The capture of seeds by vacuum plate and the release of seeds from the vacuum plate should be performed precisely without missing or doubling.

    pdf12p vimb123 12-01-2019 24 0   Download

  • This paper proposes a method of collecting a dozen terms that are closely related to a given seed term. The proposed method consists of three steps. The first step, compiling corpus step, collects texts that contain the given seed term by using search engines. The second step, automatic term recognition, extracts important terms from the corpus by using Nakagawa’s method. These extracted terms become the candidates for the final step. The final step, filtering step, removes inappropriate terms from the candidates based on search engine hits.

    pdf4p bunbo_1 17-04-2013 35 1   Download

  • This paper presents a new bootstrapping approach to named entity (NE) classification. This approach only requires a few common noun/pronoun seeds that correspond to the concept for the target NE type, e.g. he/she/man/woman for PERSON NE. The entire bootstrapping procedure is implemented as training two successive learners: (i) a decision list is used to learn the parsing-based high precision NE rules; (ii) a Hidden Markov Model is then trained to learn string sequence-based NE patterns.

    pdf8p bunbo_1 17-04-2013 35 2   Download

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