Shaza Ahmad Asaad* (1)

(1). Academic assistant, Department of Agricultural Mechanization, – Faculty of Technical engineering, Tartous University, Syria

(*Corresponding author: Dr. Shaza Asaad. E.mail: Shazaasaad44@ gmail.com.).

Received: 25/10/2020 Accepted: 29/9/2020

Abstract

This study was carried out on clay soil in Yahmoor, Tartous city, on potato (cv. spunta) during (2017 and 2018) to investigate the effect of tillage type and depths on some hydro-physical soil properties included (water infiltration rate, moisture content) and on productivity of potato plant. Randomized Completely Block Design (RCBD) arranged according to split-plot with three replicates was used. The field was divided into two main plots represented the types of tillage :(Moldboard plow MP and Chisel plow CP). The main plot was divided into three secondary plots which represented tillage depths included: D1(0-10) cm, D2(10-15) cm and D3(15-25) cm. The results showed that mold board plow increased significantly water infiltration rate (15.36, 10.41 mm/hour) after month and four months of tillage compared to the chisel plow, while chisel plow increased moisture content (19.39, 16.83%) after month and four months of tillage compared to mold board plow. D1 and D2 significantly increased water infiltration rate compared to D3 which significantly increased moisture content compared to D1 and D2. The results showed as well, that all tillage treatments increased productivity of potato plant. Inversion tillage with moldboard plow at D2 and D3 depths increased significantly potato yield (4358.83,4419.22 kg/donom) of potato tubers with tow treatments respectively.

Key word: Mold board plow, Chisel plow, Depth, Water infiltration rate, Moisture content, Potato productivity.

Full paper in Arabic: PDF