Abstract: A method for harvesting crop materials each having a grains carrying stalk, includes erecting the stalk, cutting the stalk of the crop materials with two or more cutting blades or elements into a lower base segment carrying no grain and an upper straw segment that carries grains, discarding the lower base segment which carries no grain, threshing the upper straw segment which carries the grains for separating the grains from the upper straw segment, and collecting the grains. A blowing process is used for blowing the upper straw segment away from the grains before collecting device the grains. A determining process is used for determining a length of the lower base segment to be cut before erecting the stalk.

Abstract: A harvesting machine for threshing crop materials includes a platform supported in front of a chassis, an erecting device having a number pairs of guiding bars attached to the platform and having a channel formed between two bar members of each pair of guiding bars, a guiding element disposed between every two adjacent pairs of guiding bars for guiding a stalk of the crop materials into the channel of the guiding bars, a number of pawls extended into the channel for sending the stalk of the crop materials into the channel, and a cutting device having two or more cutting elements for cutting the stalk into a lower base segment that carries no grain and an upper straw segment that carries grains.

Abstract: A harvesting machine for threshing crop materials includes a platform supported in front of a chassis, an erecting device having a number pairs of guiding bars attached to the platform and having a channel formed between two bar members of each pair of guiding bars, a guiding element disposed between every two adjacent pairs of guiding bars for guiding a stalk of the crop materials into the channel of the guiding bars, a number of pawls extended into the channel for sending the stalk of the crop materials into the channel, and a cutting device having two or more cutting elements for cutting the stalk into a lower base segment that carries no grain and an upper straw segment that carries grains.

Abstract: A method for harvesting crop materials each having a grains carrying stalk, includes erecting the stalk, cutting the stalk of the crop materials with two or more cutting blades or elements into a lower base segment carrying no grain and an upper straw segment that carries grains, discarding the lower base segment which carries no grain, threshing the upper straw segment which carries the grains for separating the grains from the upper straw segment, and collecting the grains. A blowing process is used for blowing the upper straw segment away from the grains before collecting device the grains. A determining process is used for determining a length of the lower base segment to be cut before erecting the stalk.