Field green manure sampling and yield measuring tool

The utility model discloses a field green manure sampling and yield measuring tool, which relates to the field of agricultural production, and is characterized in that cross rods of L-shaped pipe sleeves are respectively and movably sleeved in two ends of a straight pipe sleeve, a plurality of first positioning holes are formed in vertical pipe sleeves of the two L-shaped pipe sleeves, and a transverse adjusting device for adjusting the positions of the two L-shaped pipe sleeves is arranged between the two L-shaped pipe sleeves; l-shaped movable pipes are movably arranged in vertical pipe sleeves of the two L-shaped pipe sleeves in a sleeved mode respectively, a vertical adjusting device is arranged between each L-shaped pipe sleeve and the L-shaped movable pipe arranged in the L-shaped pipe sleeve in a sleeved mode, the vertical adjusting devices are screws, and a plurality of second positioning holes are formed in vertical rods of the L-shaped movable pipes. One first positioning hole and one second positio