English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The digging harvesting machine was modified and tested to perform the effect of harvesting speeds on harvesting qualities such as sweet potato lifting, un-lifting, damaged, un-damaged, soil adhesion on tuber surface and machine productivity. These indicators were evaluated under condition of medium at El Dakahlia Governorate (Belqas), Egyptian. A lot of experimental field were conducted on sweet potato harvesting under three different levels of separator length (450, 700 and 1200mm); reciprocated cam with link length of 180, 210 and 240 mm and three forward speeds (3.6;, 5.1 and 7.2km/h) under digging Nose share.. The obtained results concluded that the maximum value of sweet potato lifting efficiency was 97.14% recorded at 3.6 km/h harvesting speed and reciprocated cam with link length of 180mm. At reciprocated cam with link length of 180mm, increasing forward speed from 3.6 to 7.2 km/h increased the un-lifted of 2.74; 1.26 and 1.19 times at separator length of 450, 700 and 1200mm respectively. Generally, increasing harvesting speed increased sweet potato damage and decreased un-damage percentage. For example, at reciprocated cam with link length of 180mm, increasing forward speed from 3.6 to 7.2 km/h increased mechanical damage from 2.80 to 3.85% and decreased un-damage from 97.12 to 96.15% at separator length of 450mm. The harvesting forward speed strongly affected soil adhesion on sweet potato surface. By increasing forward speed from 3.6 to 7.2 km/h decreased soil adhesion on sweet potato surface under all treatments except at reciprocated cam with link length of 180mm.

INVESTIGATE A SIMPLE DESIGN FOR SWEET POTATO HARVESTING