Open Access Review Article

Evaluation of Watering Water Productivity in Three Cotton Varieties!

Antoniya Stoyanova*

Faculty of Agriculture, Trakia University, Stara Zagora, Bulgaria

Corresponding Author

Received Date: May 25, 2021;  Published Date: June 18, 2021


Drought can have different strengths and further effects after a number of crops, one of which is cotton. The formation of a highly efficient visit of cotton by adding technology for viewing to specific soil and climatic conditions, including control of nitrogen fertilization and feeding, is the main way to obtain stable profits.

The productivity of cotton varies greatly depending on the moisture conditions during the growing season. Under optimal temperature conditions, humidity dominates over other factors. The correlation coefficient between yields and moisture supply for the period May-August is r = 0.76 [1]. In years with lower temperature supply, the best results were obtained at an irrigation rate of 74.0 mm. Under these conditions, an increase in the yield of unpinned cotton by 41% was found, Saldjiev & Nikolov [2] found.

By reducing the irrigation rate to 60 mm, irrigation costs are reduced to 62%, the net income of 100 m3 of irrigation water is higher, and the effect of 1 m3 of water is the greatest. With deficient irrigation, crops are intentionally exposed to water stress, leading to reduced yields [3,4].

Trends in the impact of drought on crops are also analyzed using various dependencies and models and serve to predict crop productivity [5,6].

The purpose of this study is to investigate the effect of irrigation and the productivity of irrigation water in three varieties of cotton grown under conditions of natural moisture and irrigation. To study the nature of the dependences between the productivity of cotton and the irrigation rate, the productivity of irrigation water and the additional yield during different years of rainfall.

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