The Effect of Rate and Application Method of Potassium on Yield and Yield Components of Cotton in Saline Condition

Document Type : Research Article

Authors

• A Ardakani ¹
• M Armin ¹
• E Filehkesh ²

¹ Sabzevar Branch, Islamic Azad University

² Sabzevar Agriculture and Natural Resources Research center

10.22067/gsc.v14i3.46135

Abstract

Introduction
Salinity is a major abiotic stress that affects approximately 7% of the world’s total land area. Cotton (Gossypium barbadense L.) is considered as one of the most important cash crops which is widely used for agricultural and industrial purposes. Although, cotton is classified as one of the most salt-tolerant major crops but its growth and development are adversely affected by soil or water salinity. Understanding salinity and fertilizer interaction can mitigate salinity stress and improving crop yield. Potassium (K) is an essential nutrient that affects most of the biochemical and physiological processes that are involved in plant resistance to biotic and abiotic stresses. Proper management of K fertilizer is especially important in saline soils where K application might reduce the adverse effects of salinity on plant growth and yield. There is a little information about rate and application method of K on yield and yield component of cotton in saline condition. The objective of this study was to determine the effects of rate and application method of K on yield and yield component of cotton in soil and water saline condition.
Materials and Methods
The experiment was carried out at Sabzevar Agriculture and Natural Resources Research center (Haresabad), 30km southwest of Sabzevar (32◦32N, 51◦23E and 1630 above mean sea level),in 2014.This experiment was conducted as split plot design based on randomized complete block design with three replications. Factors were: K rate (75 and 150kg ha-1 Solopotash (containing 50% K2O and 18% S) comprising the main plot and application method (25%at planting+25% at first flowering and 50%at early boll development (25P+25F+50B), 25%at planting+50% at first flowering and 25%at early boll development (25P+50F+25B), 25%at planting+25% at vegetative stage (5-8 leaves stage), 25% at first flowering and 25% at early boll development (25P+25V+25F+50B), 25% at planting+25% at vegetative stage and 50% at first flowering (25P+25V+50F), and 25% at planting+50% at vegetative stage and 25%at early boll development (25P+50V+25B) as the subplot. The seeds planted had been acid-delinted and treated with chemicals against seed and seedling diseases. Plots consisted of six rows spaced 0.5 min row and 0.2 m in plant (10 plants m-2) and 6 m in length. To evaluate yield components of cotton including plant height, sympodial branch number, boll number, boll weight, 10 individual plants were selected randomly from final harvest area. At harvesting time one meter square from the beginning and a half meter around each plot was removed as a marginal effect. The remaining area was harvested by hand for determine of lint and biological yield. Seed-cotton samples were ginned to separate the fiber (lint) from the seed. Lint percentage (%) was calculated as the weight of lint to weight of the seed-cotton. The statistical analyses were performed by SAS software Ver. 9.1. The mean separation was done through Fischer least significant difference (FLSD) test at alpha 0.05.
Results and Discussion
Analysis of variance showed that boll weight, seed cotton yield and biological yield were significantly affected by potassium rate, whereas plant height, number of sympodial branch, boll number and lint percentage was not affected by potassium rate. All traits were affected by potassium application method except plant height and lint percentage. Plant height, boll weight, seed cotton yield and lint percentage were affected by interaction of potassium rate and application method. Increasing of K level up to 150 kg ha-1 increased boll weight (23.64%), seed cotton yield (17.67%), and biological yield (9.86%) in comparison with the application of 75 kg ha-1. Plant height, sympodial branch number and lint percentage did not respond to K rate. K application as 25% at planting+25% at vegetative stage (5-8 leaves stage), 25% at first flowering and 25% at early boll development (25P+25V+25F+25B) had the highest boll weight, seed cotton yield, biological yield and lint percentage. In both K rate, split application of K at planting, vegetative stage, flowering and early boll development (equally at each stage) had the highest seed cotton yield. Potassium application at flowering or early boll development had more positive effect on seed cotton yield than planting or vegetative stage.
Conclusions
The best seed cotton yield could be achieved with a combination of high dose of K fertilizer and split application of K at planting, vegetative stage, flowering and early boll development (equally at each stage). Increased K rate increased seed cotton yield because of improved boll weight and boll number in saline condition. Boll weight had more correlated with seed cotton yield than boll number. The K application as 25% at planting+25% at vegetative stage (5-8 leaves stage), 25% at first flowering and 25% at early boll development (25P+25V+25F+25B) gave higher cotton yields than other split applications in saline conditions.

Keywords

• Lint yield
• morphological traits
• Salinity stress
• Split potassium application

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References

1. Abaye, A. 1998. Effect of method and time of potassium application on cotton lint yield. Better Crops 82:25-27.

2. Abood, M. A., Ahmed, O. A. and Mehdi, A. S. 2014. Effect of potassium fertilizer, deficit irrigation and organic matter on cotton tolerance to drought. Diyala Agricultural Sciences Journal 6:202-214.

3. Adeli, A. and Varco, J. 2002. Potassium management effects on Cotton yield, nutrition, and soil potassium level. Journal of plant nutrition 25:2229-2242.

4. Akhtar, M. E., Sardar, A., Ashraf, M., Akhtar, M. and Khan, M. Z. 2003. Effect of potash application on seed cotton yield and yield components of selected cotton varieties-I. Asian Journal of Plant Science 2:602-604.

5. Aladakatti, Y., Hallikeri, S., Nandagavi, R., Naveen, N., Hugar, A. and Blaise, D. 2011. Yield and fiber qualities of hybrid cotton (Gossypium hirsutum) as influenced by soil and foliar application of potassium. Karnataka Journal of Agricultural Sciences 24:133-136.

6. Aneela, S., Muhammad, A. and Akhtar, M. 2003. Effect of potash on boll characteristics and seed cotton yield in newly developed highly resistant cotton varieties. Pakistan Journal of Biological Sciences 6: 813-815.

7. Arshad, M., Basra, S., Rajpar, I., Shah, A. and Galani, S. 2014. Response of potassium-use-efficient cotton genotypes to soil applied potassium. International Journal of Agriculture and Biology 16: 771-776.

8. Ashraf, M. 2002. Salt tolerance of cotton: some new advances. Critical Reviews in Plant Sciences, 21:1-30.

9. Chen, Y., Wen, Y., Wang, J., Zhang, X., and Chen, D. 2014. Cotton potassium uptake and use efficiency vary with potassium application rates and soil potassium nutrition levels. Journal of Food, Agriculture & Environment 12: 221-227.

10. Dev, R., Promila, K., Bhattoo, M. S. and Duhan, B.S. 2009. Effect of potassium application on yield, potassium uptake and fibre quality of cotton (Gossypium hirsutum L.). Journal of Cotton Research and Development 23: 247-250.

11. Dewdar, M. and Rady, M. 2013. Influence of soil and foliar applications of potassium fertilization on growth, yield and fiber quality traits in two Gossypium barbadense L. varieties. African Journal of Agricultural Research 8: 2211-2215.

12. Dong, H., Li, W., Tang, W. and Zhang, D. 2009. Early plastic mulching increases stand establishment and lint yield of cotton in saline fields. Field Crops Research 111: 269-275.

13. Feng, Z., Liu, A., Yi, J., Li, R., Wang, X. and Zou, Q. 2013. Effects of amount of applying potassium fertilizer on yield, fiber quality and potassium fertilizer application efficiency of three hybrid cotton cultivars. Journal of Hunan Agricultural University 39: 343-347.

14. Gormus, O. 2002. Effects of rate and time of potassium application on cotton yield and quality in Turkey. Journal of agronomy and crop science 188: 382-388.

15. Gormus, O. and Yucel, C. 2002. Different planting date and potassium fertility effects on cotton yield and fiber properties in the Cukurova region, Turkey. Field Crops Research 78: 141-149.

16. Grewal, K.S. and Duhan, B.S. 2012. Effect of phosphorus and potassium application on yield, quality and potassium uptake by cotton in a sandy loam soil. Haryana Journal of Agronomy 28:25-27.

17. Hajinezhad, H. and Armin, M. 2017. Yield and yield components response of cotton to Potash source and Zinc amount application under saline condition. Journal of Plant Ecophysiology 27: In press.(In Persian with English Abstract).

18. Hezhong, D. 2012. Technology and field management for controlling soil salinity effects on cotton. Australian Journal of Crop Science 6: 333-341.

19. Hussein, M., Youssef, R. and Nesreen, H. 2014. Influences of potassium foliar fertilization and irrigation by diluted seawater on growth and some chemical constituents of Cotton. International Journal of Science and Research 3: 3127-3134.

20. Jagdish, K., Yadav, M. P., Kushwaha, S. P. and Nand, K. 2010. Effect of different spacing and potassium levels on yield attributes, yield and economics of hirsutum cotton. Journal of Cotton Research and Development 24: 208-209.

21. Jiang, C.-c., Xia, Y., Chen, F., Lu, J.-w. and Wang, Y. H. 2011. Plant growth, yield components, economic responses, and soil indigenous K uptake of two cotton genotypes with different K-efficiencies. Agricultural Sciences in China 10: 705-713.

22. Kafi, M., Salehi, M. and Eshgheizade, H.R., 2012. Biosaline Agriculture Plant, Water and Soil Management Approaches. Ferdowsi University of Mashhad.

23. Li, Z., Chen, E., Zhang, M., Zhao, Q., Xu, X., Ji, H., Song, X. and Sun, X. 2012. Effect of potassium application methods on antioxidant enzyme activities, yield, and potassium use efficiency of cotton. Acta Agronomica Sinica 38:487-494.

24. Oosterhuis, D.M. 2002. Potassium management of cotton. pp 331-346 in N. S. Pasricha and S. K. Bansal. eds Potassium for Sustainable Crop Production. Potash Research Institute India. Gurugram, Haryana, India.

25. Panayotova, G. and Valkova, N. 2010. Potassium fertilization on cotton. Agricultural Science and Technology 2: 78-83.

26. Pervez, H., Ashraf, M. and Makhdum, M.I. 2004. Influence of Potassium nutrition on gas exchange characteristics and water relations in cotton (Gossypium hirsutum L.). Photosynthetica 42: 251-255.

27. Pervez, H., Ashraf, M. and Makhdum, M.I. 2005. Effects of potassium rates and sources on fiber quality parameters in four cultivars of cotton grown in aridisols. Journal of Plant Nutrition 27: 2235-2257.

28. Pettigrew, W. 2003. Relationships between insufficient potassium and crop maturity in cotton. Agronomy Journal 95:1323-1329.

29. Pettigrew, W.T. 2008. Potassium influences on yield and quality production for maize, wheat, soybean and cotton. Physiologia plantarum 133: 670-681.

30. Saadat, S., Dehghany, F., and Rezaei, H. 2015. Effect of saline water and nitrogen application management at different growth stages on wheat yield. Journal of Water Research in Agricultural 28:263-272. (In Persian with English Abstract).

31. Sawan, Z. M., Fahmy, A. H. and Yousef, S. E. 2009. Direct and residual effects of nitrogen fertilization, foliar application of potassium and plant growth retardant on Egyptian cotton growth, seed yield, seed viability and seedling vigor. Acta Ecologica Sinica 29: 116-123.

32. Sawan, Z. M., Fahmy, A. H. and Yousef, S.E. 2011. Effect of potassium, zinc and phosphorus on seed yield, seed viability and seedling vigor of cotton (Gossypium barbadense L.). Archives of Agronomy and Soil Science 57: 75-90.

33. Srinivasan, G. and Ramalingam, A. 2011. Response of summer irrigated cotton (Gossypium hirsutum) to foliar nutrition of potassium. Journal of Cotton Research and Development 25: 214-216.

34. Wang, X., Mohamed, I., Xia, Y. and Chen, F. 2014. Effects of water and potassium stresses on potassium utilization efficiency of two cotton genotypes. Journal of Soil Science and Plant Nutrition 14: 833-844.

35. Zhang, D., Li, W., Xin, C., Tang, W., Eneji, A.E. and Dong, H. 2012. Lint yield and nitrogen use efficiency of field-grown cotton vary with soil salinity and nitrogen application rate. Field Crops Research 138: 63-70.

36. Zhao, D., Oosterhuis, D. and Bednarz, C. 2001. Influence of potassium deficiency on photosynthesis, chlorophyll content, and chloroplast ultrastructure of cotton plants. Photosynthetica 39: 103-109.

37. Zia ul, H, Arshad, M., Basra, S. M. A., Rajpar, I., Shah, A. N. and Galani, S. 2014. Response of potassium-use-efficient cotton genotypes to soil applied potassium. International Journal of Agriculture and Biology 16: 771-776.