Zavertalyk V. Efficiency ofcorn hybrids depending on density stands and levels of the mineral nutrition in northem steppe of the Ukraine

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0403U001881

Thesis Registration Form

0403U001881.pdf

Applicant for

Specialization

  • 06.01.09 - Рослинництво

23-05-2003

Specialized Academic Board

Д 08.353.01

State Institution Institute of Grain crops of NAAS of Ukraine

Essay

Object - the features of growth, development and efficeinsy of hybrids of corn depending on basic elements of high-quality agrotechnics. Purpose - to establish the optimum density of planting for hybrids of different biotypes and their sensitivity to the level of mineral nutrition. Methods - the field and laboratory (physical and chemical) researches. Novelty - an opportunity of stable increase of grain yield of corn by optimization of plant density and dozen of mineral fertilizes is theoretically demonstrated and experimentally proved. Introduction - the scientific recommendatoins have passed the industrial check and introdutoin farms of the Dnepropetrovskand Donetsk regions; grain yield of hybrids has made 295-451 centners per hectare. Branch - an agriculture.

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Files

areft.doc

dis 1.doc

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