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Open AccessAbstract

Utilization of Forgoing Coastal Rice Fallow Lands of Bangladesh with Zero Tillage Potato Cultivation using Different Rates of Residues

1
Bangladesh Agricultural Research Institute, On-Farm Research Division, Daulatpur, Khulna 9202, Bangladesh
2
Bangladesh Agricultural Research Institute, On-Farm Research Division, Joydebpur, Gazipur 1701, Bangladesh
3
Black Mountain Laboratories, GPO Box 1700, Canberra ACT 2601, Australia
*
Author to whom correspondence should be addressed.
Presented at the third International Tropical Agriculture Conference (TROPAG 2019), Brisbane, Australia, 11–13 November 2019.
Proceedings 2019, 36(1), 88; https://doi.org/10.3390/proceedings2019036088
Published: 2 February 2020
An experiment was conducted in south-western coastal saline area of Khulna district of
Bangladesh (22°35′53.463″ N latitude and 89°27′42.617″ E longitude) during the period from
December 2018 to March 2019. The experiment was laid out in two factor Randomized Complete
Block (RCB) design with three replications. Factor A included two potato varieties (V1= BARI Alu-
72 and V2= BARI Alu-73) and factor B consisted with three rates of rice straw mulch viz. M1= 4 ton
ha−1, M2= 7 ton ha−1 and M3= 10 ton ha−1. Average thickness of mulch treatments were 11 cm, 13 cm
and 15 cm, respectively. Mulch rate had significant effect on different soil and crop parameters,
however there was no significant effect observed in variety and variety vs mulch rate. At harvest,
highest plant height (50.7 cm), stem dry weight (1.33 g plant-1) and leaf dry weight (7.29 g plant−1)
were recorded from M3 treatment. In case of yield components and yield, M3 treatment gave
highest value for number of tuber per plant (7.11), individual tuber weight (59.38 g), tuber yield
(15.62 t ha−1), haulm yield (2.26 t ha−1). Significantly highest moisture was conserved by M3 treatment
(27.13%) at harvest as well effectively controlled salinity (ECe) increase (only 1.25% increase than
initial). So, it is observed that rice straw @ 10 t ha-1 is most suitable for zero tillage potato cultivation
in the coastal area of Bangladesh.
Keywords: potato; zero tillage; mulch rate; salinity; dry matter; tuber yield potato; zero tillage; mulch rate; salinity; dry matter; tuber yield
MDPI and ACS Style

Shahadat, M.K.; Rashid, M.H.; Ali, M.A.; Mainuddin, M. Utilization of Forgoing Coastal Rice Fallow Lands of Bangladesh with Zero Tillage Potato Cultivation using Different Rates of Residues. Proceedings 2019, 36, 88.

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