Changes in Agrochemical Properties of Irrigated Gray Meadow Soils

Dildora Berdieva

and Sevara Kiryigitova

Jizzakh Polytechnic Institute, Islam Karimov street - 4, 130100, Jizzakh, Uzbekistan

Jizzakh State Pedagogical University, Sharof Rashidov Street - 4, 130100, Jizzakh, Uzbekistan

Keywords: Gray Meadow Soils, Agrochemical Properties, Soil Fertility.

Abstract: This study investigates the changes in agrochemical properties of irrigated gray meadow soils, crucial for

sustainable agricultural practices. Over time, anthropogenic activities and natural processes can alter soil

characteristics, impacting crop productivity and environmental health. By analyzing soil samples from

irrigated gray meadow areas, this research aims to assess variations in key agrochemical parameters, including

pH, organic matter content, nutrient levels, and salinity. Understanding these changes is essential for

implementing effective soil management strategies and mitigating adverse effects on agricultural ecosystems.

The findings contribute to the development of tailored soil conservation and fertility enhancement practices,

promoting the long-term sustainability of irrigated agriculture in gray meadow regions.

1 INTRODUCTION

Irrigated gray meadow soils are essential components

of agricultural ecosystems, especially in regions

where irrigation is important for crop production.

These soils, characterized by their unique

composition and properties, play a vital role in

maintaining agricultural productivity and maintaining

ecosystem stability. However, the ecological state of

irrigated gray meadow soils often deteriorates due to

intensive agricultural practices, improper land use

and environmental degradation. As a result, soil

degradation, nutrient depletion and decreased

productivity have become major problems in these

regions.

Irrigated gray meadow soils play a vital role in

sustaining agricultural productivity and ecosystem

health in various regions worldwide. These soils,

characterized by their unique composition and

hydrological dynamics, are particularly important for

supporting crop growth and providing essential

ecosystem services. However, anthropogenic

activities and natural processes can induce changes in

the agrochemical properties of irrigated gray meadow

soils, affecting soil fertility, nutrient availability, and

overall soil health. Understanding these changes is

crucial for implementing sustainable soil

https://orcid.org/0000-0003-2100-9121

https://orcid.org/0009-0009-0472-4675

management practices and ensuring the long-term

productivity and resilience of agricultural

ecosystems.

Irrigated gray meadow soils are prevalent in

regions with temperate climates and abundant water

resources, making them conducive to agricultural

activities such as crop cultivation, livestock grazing,

and forage production. These soils exhibit unique

characteristics, including a high water-holding

capacity, moderate fertility levels, and susceptibility

to waterlogging and salinization under improper

management (Batjes, 2016). As a result, they require

careful monitoring and management to optimize

agricultural productivity while minimizing

environmental degradation.

2 MATERIALS AND METHODS

Several factors contribute to changes in the

agrochemical properties of irrigated gray meadow

soils. Anthropogenic activities such as intensive

agricultural practices, irrigation, and land use changes

can alter soil structure, nutrient cycling, and pH levels

(Lal, 2015a). Excessive use of chemical fertilizers

and pesticides may lead to soil acidification, nutrient

imbalances, and reduced soil microbial diversity,

144

Berdieva, D. and Kiryigitova, S.

Changes in Agrochemical Properties of Irrigated Gray Meadow Soils.

DOI: 10.5220/0014223700004738

Paper published under CC license (CC BY-NC-ND 4.0)

In Proceedings of the 4th International Conference on Research of Agricultural and Food Technologies (I-CRAFT 2024), pages 144-147

ISBN: 978-989-758-773-3; ISSN: 3051-7710

impacting long-term soil health (Stockmann et al.,

2013). Furthermore, natural processes such as

erosion, weathering, and climatic fluctuations can

exacerbate soil degradation and nutrient loss,

particularly in vulnerable landscapes.

This study aims to investigate the changes in

agrochemical properties of irrigated gray meadow

soils in response to anthropogenic and natural factors.

By analyzing soil samples collected from

representative sites, we seek to quantify variations in

key parameters such as soil pH, organic matter

content, nutrient levels, and salinity. Additionally, we

aim to identify the underlying drivers of these

changes, including land management practices,

hydrological dynamics, and climatic variability.

Through a comprehensive understanding of these

factors, we can develop targeted soil conservation and

fertility enhancement strategies to mitigate soil

degradation and promote sustainable agricultural

practices in irrigated gray meadow regions.

"Metodi agrokhimicheskih analizov pochv i

rasteniy" (Tashkent, 1977), Ye.V Arinushkina, in

agrochemical analysis of soil. "Rukovodstvo po

khimicheskomu analizu pochv" (Moscow, 1970),

GOST 26423-85 manuals were used. MVI UzO'U

0704:2016 "Methods of performance of

measurements of the Republic of Uzbekistan"

determined the presence and quantity of heavy metals

by the mass spectral analysis method (ISP-MS mass

spectrometer device).

Assessment and study of functional diversity of

soil and plant rhizosphere microbial communities

have traditionally been assessed at the level of

physiological groups in the respective environment:

ammonifying bacteria on meat-peptone agar (MPA),

spore-forming bacteria with the addition of

MPA.(1:1), oligonitrophils, actinomycetes in starch-

ammonia medium, microscopic fungi in Czapek

medium were studied. (Zvyagintsev, 1991). Bacterial

counts were expressed in colony-forming units per 1

g of soil.

In the experiment, after harvesting the winter

wheat, the seeds of the "Durdona" variety (purity

98.5%, fertility 92%) were planted as a repeat crop at

the rate of 25 kg/ha using Fankhauser-2115 seeder at

a depth of 5-6 cm (July 10).

Irrigation at the rate of 600 m

/ha was carried out

for seed germination. The rows were weeded twice by

hand. The harvest of repeated leguminous mush is

harvested by hand in the last ten days of September.

Understanding the changes in agrochemical

properties of irrigated gray meadow soils is essential

for informing land management decisions, policy

development, and agricultural extension efforts. By

elucidating the drivers and consequences of soil

degradation, this research contributes to the

development of evidence-based solutions for

enhancing soil health and resilience. Moreover, it

provides valuable insights into the interactions

between human activities, environmental processes,

and soil dynamics in agricultural landscapes.

Ultimately, this knowledge is critical for ensuring the

long-term sustainability of irrigated agriculture and

ecosystem services provided by gray meadow soils.

Irrigated gray meadow soils, characterized by

their unique composition and hydrological dynamics,

are essential for sustaining agricultural productivity

and ecosystem health in various regions worldwide.

However, these soils are susceptible to changes in

their agrochemical properties due to a combination of

anthropogenic activities and natural processes. This

section explores the key changes observed in the

agrochemical properties of irrigated gray meadow

soils and discusses their implications for soil fertility,

nutrient cycling, and agricultural sustainability.

Table 1: Agrochemical indicators of the soils of the research object (in the example of the main section, before the

experiment).

Sample № Cut length № Layer thickness, sm

Active, mg/kg

N-NO

, mg/kg

general, %

N, %

Hummus

О Р

О %

1 I 0-30 14,0 228,8 30,9 0,155 1,17 0,061 0,869

2 30-50 13,0 240,8 26,9 0,120 0,66 0,058 0,807

3 II 0-30 23,0 361,2 69,7 0,155 1,10 0,07 0,998

4 30-50 24,0 240,8 48,3 0,116 0,57 0,052 0,786

5 III 0-30 18,0 337,1 139,4 0,170 1,13 0,063 0,890

6 30-50 15,0 264,9 18,2 0,155 0,06 0,05 0,724

7 IV 0-30 18,0 276,9 149,6 0,145 1,10 0,061 0,828

8 30-50 14,0 216,7 15,9 0,120 0,69 0,050 0,724

Changes in Agrochemical Properties of Irrigated Gray Meadow Soils

145

Soil pH is a critical indicator of soil health and

fertility, influencing nutrient availability, microbial

activity, and plant growth (Von et al., 1995; Lal,

2015b; Angers & Caron, 1998). In irrigated gray

meadow soils, changes in soil pH can occur due to

factors such as acidification from nitrogen fertilizers,

organic matter decomposition, and leaching of basic

cations (Berdieva, 2021). Acidification of soils may

lead to aluminum and manganese toxicity, inhibiting

root growth and nutrient uptake by plants (Berdieva,

2020a). Conversely, alkaline soils can affect nutrient

solubility and availability, impacting plant growth

and yield. Monitoring soil pH is therefore essential

for maintaining optimal growing conditions and

preventing soil degradation in irrigated gray meadow

areas.

Organic matter plays a crucial role in soil

structure, nutrient cycling, and water retention in

irrigated gray meadow soils (Berdieva, 2020b;

Berdieva, 2023; Saidova et al., 2024; Alimova et al.,

2024). Changes in organic matter content can occur

due to land management practices, such as tillage,

crop rotation, and organic amendments, as well as

natural processes like decomposition and erosion

(Lal, 2015b).

Decreases in organic matter levels may result in

soil compaction, reduced water infiltration, and

nutrient depletion, compromising soil fertility and

crop productivity. Conversely, increasing organic

matter content through practices such as cover

cropping, mulching, and compost application can

enhance soil structure, nutrient availability, and

microbial activity, promoting sustainable agriculture

in gray meadow regions.

Soil microbial communities play a crucial role in

nutrient cycling, organic matter decomposition, and

soil health maintenance in irrigated gray meadow

soils. Changes in land use, management practices,

and environmental conditions can affect microbial

diversity, abundance, and activity (Berdieva, 2021;

Alimova, 2023; Saidova et al., 2024). Soil

disturbances such as tillage and erosion can disrupt

microbial habitats and decrease microbial biomass,

impacting nutrient cycling and soil fertility.

Conversely, conservation tillage, crop diversification,

and organic farming practices can enhance soil

microbial diversity and activity, improving nutrient

availability and soil health in gray meadow areas.

3 RESULTS AND DISCUSSION

"Yakub" farm, Sh. Rashidov district, Jizzakh region,

in the fields of gray-meadow management works of

bioorganic fertilizers in combination with mosh on

soil fertility based on the scientific results obtained:

"The irrigated meadow improves the ecological

condition of the cows and increases their productivity

road recommendations" for the transportation of

goods to the Department of Agriculture of the Jizzakh

region.

As a result, to improve the quality of practical

support of agrobiological measures to maintain and

restore the fertility of irrigated soils of farmers and

farms in the region, to obtain high yields from all

agricultural farms;

Biofertilizer and ecologically pure biopreparation

for "Durdona" variety of moss were tested on

irrigated gray-meadow soils. Improvement of

microbiological activity in the soil root rhizosphere

was achieved due to the combined use of Rizokom-1

biopreparation and bioorganic fertilizer Rizokom-1.

As a result, the agrochemical properties of the soil

were improved and the biological activity increased.

4 CONCLUSIONS

Changes in the agrochemical properties of irrigated

gray meadow soils have significant implications for

soil fertility, nutrient cycling, and agricultural

sustainability. Monitoring and managing these

changes are essential for maintaining soil

productivity, protecting environmental quality, and

ensuring the long-term sustainability of agricultural

ecosystems in gray meadow regions.

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