Effects of water saving technology application on growth, development, and yield of cotton in Uzbekistan

Sabirjan Isaev,Yusufbay Ashirov,Tokhtakhon Karabaeva,Sayidjakhon Khasanov,Azim Gafurov,V Breskich,S Uvarova

doi:10.1051/e3sconf/202124402047

Abstract

The highest yield of the promising cotton variety Pakhtakor-1 was achieved by irrigating the cotton with placing black plastic film. Accordingly, the average yield for 3 years was 37.2 q/ha, which was more by 7.9 q/ha than the control variant, whereas it was higher by 2.7 q/ha than Bayaut-2 variety of cotton, in which the same irrigation method was applied. It was found that in Pakhtakor-1 variety, fiber yield was 38.1-39.9%, followed by fiber length 33.5-34.0 mm and weight of 1000 seeds was 115-120.1 grams. Cotton fiber yield, fiber length and weight of 1000 seeds in Pakhtakor-1 for the three years were higher by 0.2-1.0 %, 0.1-0.7 mm and 0.4-1.6 mm, correspondingly, than the standard An-Bayaut-2. The highest economic efficiency of cultivating standard An-Bayaut-2 and promising cotton varieties Pakhtakor-1 through various irrigation technologies was achieved in the form of irrigated with black plastic film, accounted for net profit of 1943902 sums/ha (45 % profitability rate) and 870,583 sums of additional income (17.2 % the profitability rate) than the control.

Highlights

Today, one of the ten global challenges of the 21st century is the acute shortage of water resources
The world agriculture uses 2.8 thousand km3 of fresh water per year, accounts for 70% of the world’s freshwater consumption, and it is 7 times more than the water used by world industry. Almost all of this water is used to irrigate crops, and globally, 40% of food and 60% of cereals crops are produced in irrigated land
The best results were observed in both cotton varieties in the furrow irrigation with placing black plastic film applied variants: conditional net profit was 1,489,573-1,943,902 sums/ha, and yield was 34.5 and 45.0%, respectively

Summary

Introduction

One of the ten global challenges of the 21st century is the acute shortage of water resources. By the middle of the century, many countries will be forced to import water. The world agriculture uses 2.8 thousand km of fresh water per year, accounts for 70% of the world’s freshwater consumption, and it is 7 times more than the water used by world industry. Almost all of this water is used to irrigate crops, and globally, 40% of food and 60% of cereals crops are produced in irrigated land

Methods

Results

Conclusion