In view of the problems of missed plucking rate, excessive plucking rate, and stalk accumulation in the field performance test of the wheeled stalks puller, the improved design of the machine was carried out. In order to further improve the operational performance of the machine, the operational mechanism of its core working parts was analyzed and field tests were conducted. Through the mechanism analysis and comparative verification tests, the following conclusions were drawn.

1) This study improves on the basis of the wheel and belt stalk plucker and proposes a new stalk plucker: the stalk plucker with clamp. It reduces the leakage rate and plucking breakage rate. Improve the stalks pulling performance. It paves the way for the resource utilization of cotton stalks. It also facilitates the mechanical recovery of residual film.

2) The analysis and the test of two generations of prototypes prove that the maximum friction force is increased while the clamping working stroke s of the stalk pulling parts is maximized, which can effectively reduce the leakage rate and alleviate the problem of stalk congestion. The improved second-generation prototype reduced the leakage rate by 3.67%-3.79% compared with the first-generation prototype.

3) Since the land in Xinjiang is clay soil, the stalks are more difficult to be pulled out by the machine at one time due to the soil bonding to the cotton stalk pulling force F₂. The test proves that the improved second-generation prototype has significantly improved the stalk pulling effect because of the second pulling interval CD.

4) The analysis and the tests on the two generations of prototypes proved that using a flexible material to hold the pulling can transfer some of the deformation of the cotton stalks to the flexible material. The deformation length L of the contact surface between the cotton stalk and the stalk pulling part is reduced by a certain amount, and the deformation deflection Δy is also reduced. In this way, the toughness of the stalks does not become significantly smaller and the stalks are less likely to be pulled off. The improved second-generation prototype has a 5.65% to 6.30% lower pulling rate than the first-generation prototype.