Yield capacity of modern rice varieties depending on the nutrition system
DOI:
https://doi.org/10.30835/2413-7510.2017.104930Keywords:
rice, variety, mineral fertilizers, yield capacityAbstract
The aim and tasks of the study. The objective of our research was to establish peculiarities of the response of rice varieties ‘Debiut’, ‘Marshal’, ‘Lazurit’, Korsar’, ‘Vikont’, and ‘Ontario’ to the fertilizer system in the southern Steppe of Ukraine.
Materials and methods. The study was carried out in the experimental field of theInstitute ofRice NAAS in 2011-2016. The experiments were laid out in compliance with the requirements for field experiments by the BA Dospekhov technique.
Results and discussion. The results of studying the effects of fertilizer systems on the yield capacity of new rice varieties in rice crop rotations in the southern Steppe of Ukraine are presented. It was established that the highest yield of rice was achieved on N120P30 with double dressing. Thus, the yield was 11.27 t/ha in variety ‘Vikont’; 9.62 t/ha in ‘Korsar’; 8.99 t/ha in ‘Lazurit’; 7.06 t/ha in 'Debiut’; 9.77 t/ha in ‘Marshal’; and 9.24 t/ha in ‘Ontario’. Basic application of ammonium sulphate was more effective for varieties ‘Vikont’, ‘Korsar’ and ‘Lazurit’. In this case the yields amounted to 9.33, 7.99 and 7.27 t/ha, respectively. ‘Debiut’ gave a higher yield with N120 (carbamide)P30 - 6.03 t/ha. The yields of varieties ‘Marshal’ and ‘Ontario’ were not affected by the type of basic fertilizer.
It was found that mineral fertilizers increased both the productive stem number by 33.2-63.1% and the grain weight per panicle by 3.8-50.0%.
Conclusions.The research established that the type of basic fertilizer did not matter varieties ‘Marshal’ or ‘Ontario’; ammonium sulfate is preferable for varieties ‘Vikont’, ‘Korsar’ and ‘Lazurit’ ; and carbamide - for ‘Debiut’. Application of N120P30 with double dressing is optimal for all the varieties, regardless of the ripeness group. Here, the productive tillering capacity, the panicle number, the grain weights per panicle and per 1 m2 increase, which determines increased yield capacity. The grain/straw ratio is a varietal characteristic and does not significantly depend on the fertilizer systemReferences
Dudchenko VV, Lisovyi MM, Vozhegova RA et al. Rice cultivation technology taking into account the requirements for the environment protection on Ukrainian farms. Skadovsk: AS; 2011. 84 p.
Titkov AA, Gichkin IN, Kolmykov VR, Sichkarenko VA, Kornilov AV. ABC of a rice producer. Simferopol, 1978. 142 p.
Alieshyn EP, Tur NS. Effect of nitrogen on the rice tillering intensity and yield. Trudy VNII risa. 1971; 1: 50–53.
Vantsovskyi AA. Rice in Ukraine. Kherson: Aylant, 2004. 172 p.
Alieshyn EP, Alieshyn IE. Rice. Krasnodar: Inform-Tsentr, 1997. 504 p.
Vorobiev NV, Skazhenyk MA. Physiological basics of mineral nutrition of rice. Krasnodar: Mir Kubani, 2005. 194 p.
Dospekhov BA. Methods of field experimentation. Мoscow: Коlos, 1979. 416 p.
Downloads
Published
Issue
Section
License
Copyright (c) 2017 В. О. Скидан
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
When placing the text in electronic resources, the copyright is reserved by the author of a publication.
Authors may not agree with referee’s(s’) comments and remarks of the Editorial Board, rationalizing their point of view.
Authors may require clarification from or the Editorial Board or changes in the event of significant errors in their article.
Authors can use materials published in the journal Selection and Seed Industry in their work, mandatorily referring to our journal.