alexa Influence of Drip Irrigation and Plastic Mulch on Yield
ISSN: 2168-9768

Irrigation & Drainage Systems Engineering
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Research Article

Influence of Drip Irrigation and Plastic Mulch on Yield of Sapota (Achraszapota) and Soil Nutrients

Tiwari K N*, Mukesh Kumar, Santosh D T, Vikas Kumar Singh, Maji M K and Karan A K

Precision Farming Development Centre, Agricultural & Food Engineering Department, Indian Institute of Technology, Kharagpur- 721 302(W.B), India

*Corresponding Author:
Tiwari K N
Precision Farming Development Centre
Agricultural & Food Engineering Department
Indian Institute of Technology, Kharagpur-721 302(W.B), India
Tel: +91-3222-283150
Fax: +91-3222-283150
E-mail: [email protected]

Received November 21, 2013; Accepted January 16, 2014; Published January 23, 2014

Citation: Tiwari KN, Kumar M, Santosh DT, Singh VK, Maji MK, et al. (2014) Influence of Drip Irrigation and Plastic Mulch on Yield of Sapota (Achraszapota) and Soil Nutrients. Irrigat Drainage Sys Eng 3:116. doi:10.4172/2168-9768.1000116

Copyright: © 2014 Tiwari KN, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The experiment was carried out to study the response of Sapota (Achraszapota) crop under drip irrigation and plastic mulch. Three levels of irrigation water applied through drip, ring basin irrigation method in combination with plastic mulch were experimented with five replications on Sapota plants. Reference evapotranspiration was estimated using FAO-56 Penman Monteith approach. The Sapota crop water requirement was estimated using reference evapotranspiration data and crop co-efficient for different crop growth stages. The irrigation water was applied at 60%, 80% and 100% of the crop water requirement. Irrigation intervals were at 2 and 5 days respectively in drip and ring basin irrigation treatments. The water requirement of Sapota crop varies between 2.14 mm (10.71 L) per day per plant in winter season and 6.89 mm (34.44 L) per day per plant in summer season for 100% water requirement treatment at peak growth stage. To investigate the effect of plastic mulch on soil, the physico-chemical analysis of soil was performed for the soil samples collected from three different depths (0-30, 30-60, 60-90 cm). The soil chemical analysis indicated increase in organic carbon, organic matter, humic acid, microbial count, available potassium, available phosphorus, total nitrogen content and C:N ratio for the soil covered with the plastic mulch treatment. The pH and available nitrogen was found to decrease in the soil covered with plastic mulch. The biometric observations (canopy, height, girth, no. of branches) of Sapota plants showed positive influence of the irrigation and plastic mulch treatments on growth of Sapota crop. Due to mulch alone the increase in Sapota yield varied from 7.62% to 41% in different treatments. Yield of Sapota crop was found to increase by 21.05% due to drip in comparison to ring basin irrigation.


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