Reaction of barley to top-dressing with different types of nitrogen fertilizer

Eugenia Noskova,Irina Shchennikova,Eugene Lisitsyn,Elena Svetlakova,A Zheltenkov,A Mottaeva

doi:10.1051/e3sconf/202128403007

Abstract

The study was carried out to investigate effect of mineral (CAN) and organo-mineral (OMF) top-dress nitrogen fertilizers on physiological and morphological parameters in three barley cultivars. The study revealed significant differences in the reaction of the cultivars in magnitude and direction of the yield structure elements. CAN had smaller effect on the studied parameters than OMF. CAN had no effect on grain yield and straw mass. Only for the cv. Novichok, there was an increase in grain weight from the main ear (15%), the length of the main ear (15%), the 1000-grain weight (2.9%). OMF led to increase grain yield in the cv. Novichok (43%), Pamiaty Rodinoy (16%), and did not change in the cv. Rodnik Prikamya. Only the cv. Novichok has increased the grain mass from the main ear (17%). The length of the main ear increased in the cv. Novichok (13%), Pamiaty Rodinoy (11%) but decreased in the cv. Rodnik Prikamya (7.5%). The influence of OMF increased the 1000-grain weight in the cv. Novichok (4.9%) and Pamiaty Rodinoy (2.5%), but decreased in the cv. Rodnik Prikamya (1.5%). Statistically differences were revealed in reaction of pigment complexes of flag and second leaves in all cultivars.

Highlights

Barley (Hordeum vulgare L.) is widely grown cereal crops in Russian federation as well as in the world
Top-dressing treatment of barley plants at the tillering stage revealed differences in the responsiveness of the studied barley cultivars according to the total yield level: cv
The use of carbamide-ammonia mixture (CAN) had a smaller effect on the development of the studied parameters of spring barley plants than the use of organo-mineral fertilizer Polydon AminoStart (OMF)

Summary

Introduction

Barley (Hordeum vulgare L.) is widely grown cereal crops in Russian federation as well as in the world. The United States Department of Agriculture (USDA) reported that world barley production in 2019/2020 growing season was 156.70 million tons and estimates it in 2020/2021 growing season at the level of 159.98 million metric tons. In Russian Federation, there are 20,629 and 19,939 million metric tons correspondingly [https://www.fas.usda.gov/data/grain-world-markets-and-trade]. Barley grain and straw is mainly grown as animal feed, human food and malt products. According to its biological features, barley is unique crop that may be produced in unfavorable climate and soil conditions of the world. Barley is the only cereal and only staple food resource in countries having arid and semi arid climates in West Asia, North Africa, and East Asia. Barley has more stable yield against seasonal weather variation than wheat and other small grains

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