IMPACT OF CROPPING SEQUENCES ON SOIL FERTILITY IN THE WESTERN ZONE OF TAMIL NADU

K. SATHIYABAMA¹*, V. VASUKI², K.R. LATHA^3
1Tamil Nadu Rice Research Institute (TRRI), Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
²Institute of Agriculture, Kumulur, Trichy, 621 712, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
³Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
* Corresponding Author : kssoilscience@gmail.com

Received : 29-03-2020     Accepted : 13-05-2020     Published : 15-05-2020
Volume : 12     Issue : 9       Pages : 9825 - 9827
Int J Agr Sci 12.9 (2020):9825-9827

Keywords : Cropping sequences, Soil fertility, Soil enzymes
Academic Editor : Divyanshu Gupta, Dr Zheko Radev, Sh. Prabhu G, Dr C. N. Jadav, Dr Brij Nandan, Dr Jagadeshwaran
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Tamil Nadu Rice Research Institute (TRRI), Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
Author Contribution : All authors equally contributed

To study the influences of different cropping sequences on soil quality parameters, soil samples were collected and analysed for its chemical and biological properties. The cropping consists of seven different cropping sequences grown in three seasons namely kharif, rabi and summer seasons. The soil pH and electrical conductivity did not influence by cropping. The higher organic carbon content of 0.60 percent, available N of 238 kg/ha and available P (23.8kg/ha) was recorded in the Beet root - Maize + Fodder cowpea - Green gram which was comparable with Maize + Fodder cowpea - Grain Cowpea - Prosomillet. The higher available potassium of 584 kg/ha was recorded in Chilies - Cotton + Onion-Sunnhemp. Non-significant results in Mn and Cu was obtained. Higher available B content was recorded in the Onion-Cotton-Maize (0.75 ppm). Maize + Fodder Cowpea-Grain Cowpea-Prosomillet recorded higher value of 116.43 µg/g. Higher soil dehydrogenase activity was recorded (176.3 TPF ug/g/day) in the Sorghum (dual) - Grain Cowpea - Fodder maize + Fodder cowpea.

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