The article examines the effect of nitrogen fertilizer forms (ammonium sulfate, urea and ammonium nitrate) and rates (N₆₀–N₁₅₀ against a P₉₀K₉₀ background) on seedling emergence and plant density of the Jerusalem artichoke variety Fayz-baraka. In the 2025 field experiment plant density increased in all variants over the observation dates, with the most intensive increase between 12 and 17 April (on average by 22–24 thousand plants/ha). Ammonium nitrate was the most effective form: at N₁₂₀P₉₀K₉₀ plant density reached 94.1 thousand plants/ha after thinning and 92.9 thousand plants/ha at the end of the growing season. N₁₂₀P₉₀K₉₀ was the optimal rate for all fertilizer forms, and increasing it to N₁₅₀ reduced the indicators.
| Mualliflar | AKBAROVA, Nargiza Sadirdin qizi, АКБАРОВА, Наргиза Садирдин кизи, AKBAROVA, Nargiza Sadirdin qizi |
|---|---|
| Jurnal | Research Focus |
| Nashriyot | Ветеринария ИТИ ва “Илм-фан ва инновациялар академияси” МЧЖ |
| ISSN | 2181-3833 |
| Nashr sanasi | 2026-10-05 |
| Jild | 5 |
| Son | 9 |
| Betlar | 84-87 |
| Til | Ingliz |
| Ilmiy soha | Veterinariya |
| DOI | 10.66073/refocus.v5i9.0909 |
| Indeksga qo‘shilgan | 2026-10-18 |
DOI: 10.66073/refocus.v5i9.0909 · Maqolaning asl sahifasi
Jerusalem artichoke, Fayz-baraka variety, nitrogen fertilizers, ammonium nitrate, urea, ammonium sulfate, emergence, plant density, topinambur, Fayz-baraka navi, azotli o‘g‘itlar, ammoniy nitrat, karbamid, ammoniy sulfat, unib chiqish, ko‘chat qalinligi, топинамбур, сорт «Файз-барака», азотные удобрения, аммиачная селитра, карбамид, сульфат аммония, всхожесть, густота стояния
| APA | AKBAROVA, Nargiza Sadirdin qizi, АКБАРОВА, Наргиза Садирдин кизи, & AKBAROVA, Nargiza Sadirdin qizi (2026). Effect of mineral fertilizer forms and rates on the germination rate and plant density of “Fayz-baraka” Jerusalem artichoke variety. Research Focus, 5(9), 84-87. https://doi.org/10.66073/refocus.v5i9.0909 |
|---|---|
| GOST (OAK) | AKBAROVA, Nargiza Sadirdin qizi, АКБАРОВА, Наргиза Садирдин кизи, AKBAROVA, Nargiza Sadirdin qizi Effect of mineral fertilizer forms and rates on the germination rate and plant density of “Fayz-baraka” Jerusalem artichoke variety // Research Focus. – 2026. – T. 5, № 9. – P. 84-87. – DOI: 10.66073/refocus.v5i9.0909. |
| MLA | AKBAROVA, Nargiza Sadirdin qizi, АКБАРОВА, Наргиза Садирдин кизи, and AKBAROVA, Nargiza Sadirdin qizi. “Effect of mineral fertilizer forms and rates on the germination rate and plant density of “Fayz-baraka” Jerusalem artichoke variety.” Research Focus, 5(9), 84-87, 2026. https://doi.org/10.66073/refocus.v5i9.0909 |
| Chicago | AKBAROVA, Nargiza Sadirdin qizi, АКБАРОВА, Наргиза Садирдин кизи, and AKBAROVA, Nargiza Sadirdin qizi. “Effect of mineral fertilizer forms and rates on the germination rate and plant density of “Fayz-baraka” Jerusalem artichoke variety.” Research Focus, 5(9), 84-87 (2026). https://doi.org/10.66073/refocus.v5i9.0909 |
| Harvard | AKBAROVA, Nargiza Sadirdin qizi, АКБАРОВА, Наргиза Садирдин кизи, and AKBAROVA, Nargiza Sadirdin qizi (2026) ‘Effect of mineral fertilizer forms and rates on the germination rate and plant density of “Fayz-baraka” Jerusalem artichoke variety’, Research Focus, 5(9), 84-87. https://doi.org/10.66073/refocus.v5i9.0909 |
| BibTeX | @article{akbarovanargizasadirdinqizi2026,
title = {Effect of mineral fertilizer forms and rates on the germination rate and plant density of “Fayz-baraka” Jerusalem artichoke variety},
author = {AKBAROVA, Nargiza Sadirdin qizi and АКБАРОВА, Наргиза Садирдин кизи and AKBAROVA, Nargiza Sadirdin qizi},
journal = {Research Focus},
year = {2026},
volume = {5},
number = {9},
pages = {84-87},
doi = {10.66073/refocus.v5i9.0909},
url = {https://doi.org/10.66073/refocus.v5i9.0909}
} |
Boshqa maqola uchun iqtibos tayyorlash
Background. Deep brain stimulation (DBS) is an established functional stereotactic neurosurgical treatment for selected patients with Parkinson disease (PD) who have disabling tremor, rigidity, bradykinesia, motor…
Background. Deep brain stimulation (DBS) is an established functional neurosurgical treatment for carefully selected patients with advanced Parkinson disease (PD). Clinical outcome depends on target selection, electrode…
Olfactory groove meningiomas are anterior cranial fossa tumors characterized by an indolent clinical course and may therefore reach a considerable size before diagnosis, producing frontal lobe compression and…
The article proposes a model of a unified bibliographic metadata layer for the National Scientific Publications Platform of Uzbekistan, with quality control embedded at every processing stage. Each field value is stored…
In increasing watermelon yield, improving the laboratory and field germination of the seeds to be sown and disinfecting them against various diseases are of great practical importance in agriculture. In this regard…
The article describes a modern integrated protection system aimed at reducing the harmfulness of fruit moths found in orchards in the southern regions of Uzbekistan, in particular in the Kashkadarya and Surkhandarya…
The article analyzes the skin thickness parameters of offspring obtained from various variations of matching Sur Karakul sheep, taking into account their color types (silvery, diamond, golden). According to the research…
Based on literature analysis, this scientific article investigates the causal factors, tissue-level pathogenesis, and organ-level pathomorphological changes of non-infectious gill necrosis (branchionecrosis), a disease…
The study aimed to determine the prevalence and seasonal variation of monieziosis in sheep under different geographical and climatic conditions of Uzbekistan. During 2021-2023, 2,465 sheep from the Republic of…
This article discusses the etiology, epizootology, and modern control methods of argulosis, a dangerous ectoparasitic disease of carp fish caused by crustaceans of the genus Argulus. The life cycle of the parasite, the…
Research Focus — barcha maqolalar · 2026-yil arxivi
The Central Asian Livestock Guardian Dog (Central Asian Shepherd Dog) is an ancient indigenous breed that has retained the morphological and behavioral characteristics of its ancestral forms. Shaped by centuries of…
This article considers seasonal changes in the ecological state of lakes Shurkul, Tamirchi, Yangikadam, Echkiyor, Chegara, Otbotgan and Sardoba in the Yangiaryk, Bogot and Tuprokkala districts of the Khorezm Province…
Abstract. Khorezm region has long been known for its colorful and vibrant landscapes, from lush green river valleys to arid desert expanses. However, this delicate balance has become increasingly important in recent…
This article examines innovative methodologies for foreign language teaching in a digital learning environment through the example of the VTA (Vocabulary Teaching App – Virtual Training Academy Platform). The study…
The article is dedicated to modern biological wastewater treatment systems and examines their structural features,operational mechanisms, and development prospects. A classification of biological treatment processes is…
Increasing students’ interest in learning through the subject of “Introduction to a Specialization” plays an important role in preparing future teachers for professional and pedagogical activities. This article analyzes…