The efficiency of the spring wheat production process depending on the seeding rate in the arid zone of Mongolia

Abstract

The paper presents the experience of assessing the efficiency of the spring wheat production process depending on the seeding rate in the arid zone of Mongolia. The research was conducted in 2017 at the experimental field of PROLOG SYSTEMS LLC (Mongolia). The experiment used different norms of wheat varieties Novosibirskaya 15. Arable chestnut soils for land use in PROLOG SYSTEMS LLC have the light granulometric composition, characterized by a shortage of productive moisture and a low level of potential fertility. Low availability of humus, alkaline reaction, very low availability of mobile phosphorus, low-exchange potassium significantly reduce the productivity of the company’s fields. The evaluation of wheat biometric indicators revealed the dependence of plant height, spikelets number in the ear and productive bushiness on the seeding rate. A lower seeding rate in the arid zone of Mongolia reduces species competition between plants before the bushiness phase, but increases it in later phases of plant development due to the increased productive bushiness. Also, crops of wheat varieties Novosibirskaya 15 in Mongolia with an optimal seeding rate of 140-180 kg/ha had more intensive growth, maximum yield and minimum lodging compared with a higher seeding rate of 210-230 kg/ha. The decrease in the seeding rate is permissible in hot and arid conditions of Mongolia, while the presence of productive moisture in the spring period will be a determining factor.

Genetic resistance of oat of West Siberian breeding to contrasting weather conditions and mineral nutrition level

“…Another biochemical indicator of grain crops is the starch content, which characterizes the availability of carbohydrates in commercial products [16]. It was found that the oat grain, which was grown on a natural agricultural background, contained from 42.9 to 47.2% of starch.…”

Productivity of Winter Wheat Cultivated by Direct Seeding: Measuring the Effect of Hydrothermal Coefficient in the Arid Zone of Central Fore-Caucasus

“…Some authors have tempted to investigate the perspectives of using no-till technologies and direct seeding practices to moderate the effects of climate-related parameters on yields [16,[57][58][59][60][61]. Dridiger and Gadzhiumarov [62], Pismennaya et al [20], Goryanin and Shcherbinina [63], Litvinova et al [64], and Boktaev et al [65] are among those few scholars who have tested the possibility and effectiveness of applying the direct seeding method in extremely arid zones in Russia's South and the Volga region, as well as in the countries of Central and East Asia. Although Geleta et al [14] acknowledged the seeding rate to be a critical factor in increasing grain yields, the general finding for extreme arid zones is that the decrease in the seeding rate is permissible, while the productivity of winter wheat is mainly determined by the volume of productive moisture in spring [64,[66][67][68].…”

“…Dridiger and Gadzhiumarov [62], Pismennaya et al [20], Goryanin and Shcherbinina [63], Litvinova et al [64], and Boktaev et al [65] are among those few scholars who have tested the possibility and effectiveness of applying the direct seeding method in extremely arid zones in Russia's South and the Volga region, as well as in the countries of Central and East Asia. Although Geleta et al [14] acknowledged the seeding rate to be a critical factor in increasing grain yields, the general finding for extreme arid zones is that the decrease in the seeding rate is permissible, while the productivity of winter wheat is mainly determined by the volume of productive moisture in spring [64,[66][67][68]. However, the dependence of yields on such variables as hydrothermal conditions during the peak periods (extreme droughts or extreme moisture), the duration of the interphase periods of plant development, or plant density has remained underexplored.…”