RESEARCH ON THE INFLUENCE OF BASIC SOIL TILLAGES AND CROP CARE WORKS ON BIOMETRIC PARAMETERS AND SUNFLOWER PRODUCTION

VOICU LALA

Abstract


This paper presents the experimental results of a research carried out on sunflower crop, within the locality of Bailesti, Dolj County. The factors investigated were the basic tillage of the soil and the crop care of the sunflower crop. The basic tillage of the soil that were researched were: year after year disk tillage, without plowing, normal plowing and deep plowing. The crop care works experienced were: one mechanical hoeing, one mechanical hoeing and one manual hoeing and two mechanical hoeing plus herbicide. The paper presents data on the influence of these two factors on the height of sunflower plants, on the diameter of the calatidium, the oil content of the seeds and on the production of seeds per hectare. The best results were given by the deep plowing and the variant with two mechanical hoeing plus herbicide.


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