The influence of local climate change on the productivity of spring cereals in the Kirov region

Лыскова, И. В.; Суховеева, О. Э.; Лыскова, Т. В.

doi:10.30766/2072-9081.2021.22.2.244-253

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…Применение минеральных удобрений под яровую пшеницу позволяет получать дополнительные прибавки урожая зерна более высокого качества, снижая негативное воздействие погодных условий [2,7,10]. При этом наблюдается тесная корреляция между продуктивностью яровых зерновых культур и значением гидротермического коэффициента в июне, а также обеспеченностью растений доступными формами элементов питания в почве [5,6]. Возделывание данной культуры в Саратовской области, характеризующейся континентально засушливым климатом, сопряжено с определенными рисками.…”

Section: Agronomy Original Articleunclassified

The effect of hydrothermal conditions on the yield of spring soft wheat (Triticum aestivum L.) when using mineral fertilizers in the arid Volga region

Zhuravlev¹,

Yaroshenko²,

Klimova³

et al. 2023

asj

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The paper reflects the results of the effectiveness of the use of various doses of mineral fertilizers in a long stationary experiment on spring soft wheat for nine rotations of a six-field crop rotation (27 years of cultivation) in the conditions of the steppe zone of the Volga region. The systematic use of medium and high doses of nitrogen-phosphorus fertilizers contributed to obtaining the highest yield increases to control in the experiment throughout the entire research period. The average level of correlation between hydrothermal conditions in the period May-July and crop productivity has been established. Separate calculations by month showed an average level of correlation with June. Based on the results of regression analysis, the degree of influence of hydrothermal conditions as a factorial feature on the productivity of spring soft wheat in the experiment was determined. The analysis showed that the effect of the obtained values of the hydrothermal coefficient in May and July on the production process of vegetating plants was insignificant, and in June it reached 30% according to experience.

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Section: Agronomy Original Articleunclassified

The effect of hydrothermal conditions on the yield of spring soft wheat (Triticum aestivum L.) when using mineral fertilizers in the arid Volga region

Zhuravlev¹,

Yaroshenko²,

Klimova³

et al. 2023

asj

View full text Add to dashboard Cite

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Global warming and change in the conditions of crop production practices in the Middle Cis-Urals

Lentochkin

Babaytseva

2021

Аграрная наука Евро-Северо-Востока

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The aim of the research is to establish a possible change in the temperature regime of recent years (2016-2020) as compared to the long-term average annual values of the Izhevsk weather station and the assessment of the effect of this change on the specific features of crop production practices in the Middle Cis-Urals. Statistical method, comparison and analysis were used during the research. It has been established, that in the Middle Cis-Urals for the recent five years the warming has been recorded: the sum of temperatures higher than +10 оС has increased by 70 оС on the average and reached 2138 оС that provides growing the varieties of early-ripening and mid-season spring cereals. Every vegetation period is characterized by its own specific features, positive and negative deviations from the long-term average annual values both over the whole period and during some of its intervals. The rise in the sum of temperatures resulted in the 4 days earlier transition of the average daily temperature in spring over +5 оС , in autumn it led to 2 days later transition, that made the vegetation period by 6 days longer. It provides an earlier vegetative renewal in spring and a later stop in vegetation of winter crops as well as the possibility of an earlier start of field work with spring crops in spring. The calculations have proved that between the grain yield of spring wheat varieties and the hydrothermal coefficient (HTC) indicator there are different kinds of correlative relationships – neutral, average and strong positive ones. However, between the average yield of spring wheat grain on the farms of all categories in the Udmurt Republic and HTC, a strong positive correlative relationship (r = +0.73) has been established.

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The influence of hydrothermal conditions of the Kirov region on the productivity and quality of grain of spring soft wheat varieties of different ripeness groups

Волкова

2023

Аграрная наука Евро-Северо-Востока

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Meteorological conditions were monitored for the period "May-August" in the Kirov region (Volga-Vyatka region) from 2008 to 2022. An increasing trend of the sum of precipitation and hydrothermal coefficient (НTC) values and a descending trend of the sum of effective temperatures was established. By the example of early-ripening (Iren, Bazhenka) and middleripening (Priokskaya, Simbirtsit, Margarita, Kamenka) varieties of spring wheat, the level and direction of variability of the main agronomic traits by changing the values of the НTC have been determined. In early-maturing varieties with an increase in the НTC of the growing season the content of protein and gluten in the grain significantly decreased, and the following increased: yield, duration of vegetation, plant height, ear density, mass of 1000 grains, density of the productive stem, the nature of the grain and the indicator of the gluten index. The elements of ear productivity were maximally expressed in the years optimal in terms of moisture. The reaction of medium-ripened varieties was similar according to the greater number of traits, except for the number of grains per ear, the weight of the grain per ear and the plant, the nature of the grain. By means of the correlation analysis, the influence of meteorological factors on the development of traits of spring wheat both for the entire growing season and for individual months has been studied. A high dependence of the duration of the growing season and the protein content in the grain on the sum of effective temperatures for May-August (r = 0.64...0.77) was revealed. The amount of precipitation made a significant contribution to the formation of traits only in critical phases of plant development. The analysis of regression equations obtained using 11 variables (weather factors by months) with a time sample size of 15 years showed that an increase in the amount of precipitation in June by 10 mm led to an increase in yield by an average of 0.13...0.14 t/ha, and a decrease in the average daily temperature of August by 1 °C provided an increase in yield by 0.23...0.26 t/ha. The duration of the growing season decreased in June by 2.2...2.4 days with 1 °C increase in the average temperature; in July – by 2.3...3.0 days; in August – by 1.3 days. The protein content in the grain most of all depended on the average daily temperature in June, with of 1 °C increase the amount of protein raised by 0.85...0.87 %.

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The influence of local climate change on the productivity of spring cereals in the Kirov region

Cited by 5 publications

References 8 publications

The effect of hydrothermal conditions on the yield of spring soft wheat (Triticum aestivum L.) when using mineral fertilizers in the arid Volga region

The effect of hydrothermal conditions on the yield of spring soft wheat (Triticum aestivum L.) when using mineral fertilizers in the arid Volga region

Global warming and change in the conditions of crop production practices in the Middle Cis-Urals

The influence of hydrothermal conditions of the Kirov region on the productivity and quality of grain of spring soft wheat varieties of different ripeness groups

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