The argumentation of constructive and technological parameters of working parts of ploughshare gutter for row crops
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StatusThe thesis was presented on the 6 July, 2018Approved by NCAA on the 23 November, 2018 Abstract – 1.21 Mb / in romanianThesisCZU 631.331.81:633.1
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Keywords
ploughshare gutter; coulter; sowing, technological process, technological parameter, seeder, seeding machine, resistance, dependenceSummary
The work goal: The main goal of the work is to reduce traction parameter and improve the quality of seeding process through improvement of dosing process and incorporation seeds in the soil.
The research was focused on following major work objectives:
- analysis of the current state of research in the country and in the world on the working parts of ploughshare gutter and improvement methods in order to argue the direction of experimental research;
- theoretical analysis of the operating process for working organs of culture type gutters, explaining the need to improve the construction;
- research stand development in laboratory;
- conducting laboratory experimental research on the argumentation of the construction and technological parameters of the distribution apparatus with the internal dosing surface and the culture type gutters;
- operating process stability estimation for investigated gutters;
- field tests and argumentation based on results for need to implement the distribution apparatus with the internal dosing surface and experimental gutters.
Scientific novelty of results:the work scientific innovation consists in solving important scientific issue addressed in this work: determination of optimum operating mode of implement the distribution apparatus with the internal dosing surface, gutter shape and constructive parameters in order to improve the quality of precision seeding and reduce tension parameter.
The theoretical significance of the work: consists in theoretical argumentation of the seed dosage conditions, and to determine the theoretical traction parameter and conditions which ensures gutter stable operating process.
The applicative value of the work: is ensured by theoretical and experimental recommendations regarding the construction of the seed distribution system and coulter, which allows an improvement in quality precision seeding and a reduction of 12-15% of traction parameter.
Implementation of scientific results:research were implemented in the experimental didactic resort ”Petricani” in the State Agrarian University of Moldova, as well as agricultural enterprises in the Republic of Moldova
Oficial Reviewers
- Valerian Cerempei
doctor habilitat - BALAN Ovidiu
doctor inginer, conferențiar universitar, Iași, România.
Council's Members
- Petru Stoicev, president
doctor habilitat, professor, Technical University of Moldova - Mihail Gadibadi , secretary
doctor, associate professor (docent) - Grigore Marian, member
doctor habilitat, professor, Agrarian State University of Moldova - Valeriu Dulgheru, member
doctor habilitat, professor, Technical University of Moldova - Igor Pasat, member
doctor - Iurie Melnic , member
doctor, associate professor (docent), Agrarian State University of Moldova - CRĂCIUN Vasile
doctor inginer, profesor universitar, Iași, România
Theses
