Abstract
Abstract. Scientific novelty and practical significance. The research area is relevant due to the fact that in viticulture the use of new water-soluble complex fertilizers in chelated form is not yet widespread due to their insufficient knowledge. In this regard, it became necessary to determine their influence on the basic vital processes of grape plants in arid conditions. The purpose of the research is to identify the effect of foliar nutrition by “Plantafol” and “Boroplus” fertilizers on economically valuable grape indicators in the arid conditions of the North-Western Caspian during irrigation. Methods. Experience is two-factor. Factor A – varieties: Kodryanka (early ripe), Rizamat (mid-ripening), Moskovskiy (late ripening). Factor B: option 1 – control (water treatment); option 2 – “Plantafol;” option 3 – “Boroplus”; option 4 – “Plantafol” + “Boroplus”. The experience was laid and statistical data processing was carried out according to the method of B. A. Dospekhov. The counts and observations were carried out according to the method of M. A. Lazarevskiy. The mass fraction of sugars and titratable acidity in the juice of berries was found by the method of biochemical study of plants A. I. Ermakova. The content of vitamin C in grapes was determined by the guidelines for determining the quality of plant products. Results. The maximum yield increase for all varieties was provided by the combined use of “Plantafol” and “Boroplus” fertilizers. The variety Kodryanka has 6.6 t/ha for control. The variety Rizamat has 6.7 t/ha for control. Foliar top dressing contributed to a significant increase in the mass fraction of sugars in all varieties. The use of “Boroplus” in its pure form and together with “Plantafol” positively affected the vitamin C content in berries. The sugar acid index of the varieties “Rizamat” (29.8) and Moskovskiy (28.1) had optimal values for the variant without the use of fertilizers, and the varieties Kodryanka (25.3) – for the variant with their combined use.
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Claims 9
Claim · model-written summary
Combined Plantafol and Boroplus gave the maximum yield increase across grape varieties.
- Taxon
- grapest0
- Treatment
- combined use of “Plantafol” and “Boroplus” fertilizerse0
- Outcome
- yielde0
- Direction
- maximume0
Not reportedComparator
Verbatim
e0“The maximum yield increase for all varieties was provided by the combined use of “Plantafol” and “Boroplus” fertilizers.”
t0“grapes”
Claim · model-written summary
Control yield for Kodryanka was 6.6 t/ha.
Verbatim
e0“The variety Kodryanka has 6.6 t/ha for control.”
e1“The maximum yield increase for all varieties”
t0“grapes”
Claim · model-written summary
Control yield for Rizamat was 6.7 t/ha.
Verbatim
e0“The variety Rizamat has 6.7 t/ha for control.”
e1“The maximum yield increase for all varieties”
t0“grapes”
Claim · model-written summary
Foliar top dressing significantly increased berry sugar mass fraction in all grape varieties.
Not reportedComparator
Verbatim
e0“Foliar top dressing contributed to a significant increase in the mass fraction of sugars in all varieties.”
t0“grapes”
Claim · model-written summary
Boroplus alone positively affected vitamin C content in grape berries.
Not reportedComparatorDirection
Verbatim
e0“The use of “Boroplus” in its pure form and together with “Plantafol” positively affected the vitamin C content in berries.”
t0“grapes”
Claim · model-written summary
Boroplus with Plantafol positively affected vitamin C content in grape berries.
Not reportedComparatorDirection
Verbatim
e0“The use of “Boroplus” in its pure form and together with “Plantafol” positively affected the vitamin C content in berries.”
t0“grapes”
Claim · model-written summary
Rizamat had an optimal sugar acid index of 29.8 without fertilizer.
Verbatim
e0“The sugar acid index of the varieties “Rizamat” (29.8) and Moskovskiy (28.1) had optimal values for the variant without the use of fertilizers”
t0“grapes”
Claim · model-written summary
Moskovskiy had an optimal sugar acid index of 28.1 without fertilizer.
Verbatim
e0“The sugar acid index of the varieties “Rizamat” (29.8) and Moskovskiy (28.1) had optimal values for the variant without the use of fertilizers”
t0“grapes”
Claim · model-written summary
Kodryanka had an optimal sugar acid index of 25.3 under combined fertilizer use.
Verbatim
e0“the varieties Kodryanka (25.3) – for the variant with their combined use.”
e1“The sugar acid index of the varieties “Rizamat””
t0“grapes”
The same questions in other papers
fertilization · yield · VitisResults differ
96 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- no effect
103 papers more in this group
See all 107 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.