Abstract: A planter for planting multiple rows of seeds in which the spacing between rows and the spacing between seeds in a row can be varied includes at least two planting units, each planting unit adapted for planting a row of seeds, the planting units being mounted so that the spacing between the at least two of the planting units can be changed, and the rate of planting of at least one of the planting units being independently changeable. A method of planting seeds in a field with a multi-row planter having a plurality of planting units each adapted for planting a row of seeds, includes selectively changing at least one of the spacing between at least two adjacent planting units and the rate of operation of at least one of the planting units during the planting so that at least one of the row spacing or the seed spacing in the rows is not uniform across the planted field.

Abstract: A method of planting test plots of different seeds in a field includes loading a multi-row planter with a first seed, and traversing the field and planting a test plot of the test plot of the first seed in a portion of the test field; automatically removing the first seed from the multi-row planter and loading a second seed into the multi-row planter, and traversing the field and planting a test plot of the test plot of the second seed in the field.

Abstract: A planter for planting multiple rows of seeds in which the spacing between rows and the spacing between seeds in a row can be varied includes at least two planting units, each planting unit adapted for planting a row of seeds, the planting units being mounted so that the spacing between the at least two of the planting units can be changed, and the rate of planting of at least one of the planting units being independently changeable. A method of planting seeds in a field with a multi-row planter having a plurality of planting units each adapted for planting a row of seeds, includes selectively changing at least one of the spacing between at least two adjacent planting units and the rate of operation of at least one of the planting units during the planting so that at least one of the row spacing or the seed spacing in the rows is not uniform across the planted field.

Abstract: A method of planting test plots of different seeds in a field includes loading a multi-row planter with a first seed, and traversing the field and planting a test plot of the test plot of the first seed in a portion of the test field; automatically removing the first seed from the multi-row planter and loading a second seed into the multi-row planter, and traversing the field and planting a test plot of the test plot of the second seed in the field.