Table 3 The results of the ditching test.

From: Design and experiments with a single spiral fixed depth ditching and fertilizing machine

Parameters

Test stroke 1

Test stroke 2

Test stroke 3

Set ditching depth (mm)

250

300

350

Maximum ditching depth (mm)

259

311

358

Minimum ditching depth (mm)

243

294

249

Average ditching depth (mm)

250.3

299.3

299.5

Ditching depth stability coefficient (%)

94.81

95.33

96.3