The Effects of the Degree of Soil Salinity and the Biopreparation on Productivity of Maize in the Shaulder Irrigated Massif

Poshanov, Maksat Nurbaiuly; Laiskhanov, Shakhislam Uzakbaevich; Smanov, Zhassulan; Kenenbayev, Serik; Aliaskarov, Duman Toktarovich; Abikbayev, Yerzhan Rakhimkeldievich; Vyrakhmanova, Assem Sabitkanovna; Askanbek, Aigerim

doi:10.3844/ojbsci.2022.58.67

Cited by 5 publications

(8 citation statements)

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“…Depending on the degree of soil salinity, plant growth is stunted and plant cover (Canopy cover) is also reduced (Tian et al, 2020). Salinity negatively affects maize's growth rate of vegetative organs (Zahra, 2012;Bose et al, 2018;Poshanov et al, 2022). Moreover, the effect of salinity also depends on the cultivar (Bose et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Maize is one of the economically viable crops for many regions, including Asian countries where saline soils are prevalent. Although maize belongs to the group of moderately sensitive crops, it gives a faster reaction to salinity than wheat and cotton in this group (Irshad et al, 2002;Satir and Berberoglu, 2016;Poshanov et al, 2022). This biological characteristic of maize can positively influence the understanding of the effects of salinity stress on yield.…”

Section: Introductionmentioning

confidence: 99%

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A Study of the Effects of Soil Salinity on the Growth and Development of Maize (Zea Mays L.) by using Sentinel-2 Imagery

Laiskhanov¹,

Kaimuldinova²,

Myrzaly³

et al. 2022

OnLine Journal of Biological Sciences

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Salinization of soil cover and the constant increase in their area have become one of the most pressing problems year after year for irrigated agriculture regions. The degradation processes caused by the salinity of soils negatively affect the growth and development of food crops. Therefore, this study focused on the effects of soil salinity in the midstream of the Syrdarya on the growth and development of maize where the climate is continental and mostly arid, and the cultivation of crops is possible under irrigation conditions. The study made harmonious use of remote sensing and field survey methods based on modern and traditional approaches in terms of time and space. Based on Sentinel-2 satellite images, regression analysis was carried out to determine the dependency of vegetation indices on soil electronegativity and maize biomass from 73 sampling points in the representative area. As a result, in the study of the growth and development of maize, it was found that the dependence of the Normalized Difference Vegetation Index (NDVI) on maize biomass within 18 vegetation indices was "high" (R2 = 0.76) in spring. The dynamics of maize biomass grown on soils of different salinity levels were developed. NDVI dynamics, which covers the entire growth phases of corn, showed that compared to corn grown in unsalted soils, it slows down the growth of corn in slightly saline soils-up to 11 days, in moderately saline soils -35 days, and in heavily (highly) saline soils -45 days. Characterization of soil salinity and other factors having a positive and negative influence on the growth and development of maize yield in the studied object is also given.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Study of the Effects of Soil Salinity on the Growth and Development of Maize (Zea Mays L.) by using Sentinel-2 Imagery

Laiskhanov¹,

Kaimuldinova²,

Myrzaly³

et al. 2022

OnLine Journal of Biological Sciences

Self Cite

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“…In addition, this analysis shows that even when using the same soil sampling points, significant differences in salinity were observed due to consumption of irrigation water of different quality and crop area placement in heterogeneous Irrigation systems. The decrease in the volume of non-saline soils in the arable layer of the soil from spring to autumn and the increase in the 20-50 cm and 50-100 cm layers of medium, highly salinized or strongly salinized soils, due to seasonal periods [Poshanov, et al, 2022;Das, et al, 2020], revealed that salts in irrigated soils are constantly in motion, and this situation showed that there is a direct connection between irrigation periods and flood irrigation. Determining the spatial distribution of soil salts and areas prone to secondary salinization is important for effective agricultural land management and productivity improvement.…”

Section: Seasonal Characteristics Of Soil Salinitymentioning

confidence: 98%

Mapping of Cornfield Soil Salinity in Arid and Semi-Arid Regions

Smanov¹,

Laiskhanov²,

Poshanov³

et al. 2023

J. Ecol. Eng.

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Soil salinization and their annual increase in volume is not only one of the main problems of arid and subarid regions, but it is becoming global. Studying the problem of salinization and its spatial distribution using operational remote sensing methods is very important for Kazakhstan, where almost half of the agricultural land is exposed to salinization, but it is at the initial stage of development in the use of space technologies of research. The main goal of this study is to conduct a field study of soil salinity in corn fields, one of the most common crops in the arid region of the country, located in the Shaulder irrigated massif, using space-based methods, and to create algorithms for compiling a salinity map based on remote sensing data. For this purpose, firstly, using Sentinel-2 images, the method of separating corn from other dominant crops in the region by creating NDVI dynamics covering all phases of growth of agricultural crops was shown. Then, a regression analysis was performed on soil and vegetation indices calculated using satellite images and data on soil salinity obtained through field studies. As a result of the analysis, the main predictor of deciphering salinized soils was determined. By dividing the predictive image into quartiles, contours of salinized soils were determined and a soil salinity map was created. With the help of the soil salinity map, it was found that, non-saline soils -2912.2 ha; slightly saline soils -3288.4 ha, moderately saline soils -2615.2 ha, and strongly saline soils -1284.3 ha in the study area.

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“…Scientists on the reclamation of salinized lands studied the effectiveness of traditionally hydrotechnical [23][24][25][26][27][28] and chemical [29][30][31][32][33], biological [15,22,34,35], organic [18,[36][37][38][39] and agro-innovation technologies [12,[40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Study of the Ecological and Reclamation Condition of Abandoned Saline Lands and Their Development for Sustainable Development Goals

Laiskhanov,

Smanov,

Kaimuldinova

et al. 2023

Sustainability

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To provide the population with food, it is very important to re-cultivate “abandoned lands” that have been retired from agricultural use. The conversion of arable land into agricultural abandoned lands in the south of Kazakhstan is, first of all, primarily associated with salinity. For the purposes of sustainable development, there is a need to develop proposals for re-mastering by studying their current state and reviewing world studies on the reclamation of salt-affected soils. Therefore, this study is devoted to the study of the current environmental and reclamation conditions of the abandoned areas of the Otyrar region in southern Kazakhstan. The proposed directions of changes in their development were also presented. In the course of the research, the historical method is used in the study of the emergence and formation of abandoned lands; the method of geographical analysis during the territorial analysis of the research object; the statistical and comparison methods in showing the complexity and intensity of the problems; the cartographic, geo-informational and field research (reconnaissance) methods in the study of the condition of the abandoned lands in the research object and methods of grouping and analysis were used in the work with scientific data on the topic of research. Using Sentinel-2 images, the GIS program created phenological dynamics of crops based on NDVI vegetation indices during the vegetation period of the irrigated range. By classifying them, abandoned lands due to salinization were separated from fields. By deciphering space images with the help of geoinformation technologies, it was revealed that the area of abandoned lands in the research object is 13,688.9 ha, including the area of non-saline soils—83.9 ha, weakly saline soils—984.4 ha, medium saline soils—2398.3 ha, and highly saline soils—10,222.1 ha. A review of the methods and technologies proposed by scientists for the development and amelioration of salt-affected lands was made. Taking into account the ecological and reclamation state of the object of research along with the material and technical capabilities of farms, two methods of developing abandoned lands (organic and agro-innovative) in the research object are proposed and the need for their use in case of soil salinization has been scientifically justified.

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The Effects of the Degree of Soil Salinity and the Biopreparation on Productivity of Maize in the Shaulder Irrigated Massif

Cited by 5 publications

References 0 publications

A Study of the Effects of Soil Salinity on the Growth and Development of Maize (Zea Mays L.) by using Sentinel-2 Imagery

A Study of the Effects of Soil Salinity on the Growth and Development of Maize (Zea Mays L.) by using Sentinel-2 Imagery

Mapping of Cornfield Soil Salinity in Arid and Semi-Arid Regions

Study of the Ecological and Reclamation Condition of Abandoned Saline Lands and Their Development for Sustainable Development Goals

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