Response of sweet potato yield components to stakes angle and mulch type: Sweet potato cultivation in the Papua highlands
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Date
2021-01-01
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IOP Publishing
Abstract
This study aims to improve the ability of sweet potato plants to obtain
photosynthetic active radiation through a combination of stake angle with mulch as a reflector.
The experiments were arranged in a separate plot design with three replications. The main plot
consisted of Cangkuang variety with 90° stakes and Cangkuang varieties with 60° stakes. The
subplots consisted of no mulch, straw mulch, white sand mulch, clear plastic mulch, and black
silver plastic mulch. The results showed that the use of mulch as a reflector on both stake angle
was able to increase photosynthesis active radiation by 27.84% to 34.63% compared to
without mulch at 16.82%, and the optimum leaf area index at the age of 100 DAP was 3.74 to
4.45 at stake angle of 90° and 3.23 to 4.10 at stake angle of 60°. The number of tubers per
plant increased and reached the highest of 3.17 and 4.50 in straw mulch, the number of
marketable tubers from 51.90% to 59.23% compared to without mulch of 41.97% for stakes
angle of 90° and 44.67% to 65.83% compared without mulch of 32.47% for stakes angle of
60
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Research Subject Categories::A Agriculture/Pertanian::A50 Agricultural research/Penelitian Pertanian