Three-dimensional agriculture refers to the full utilization of crops in time and space. According to the different characteristics of different crops, such as high stalk and short stalk, rich light and shade tolerance, early and late maturity, deep and shallow roots, legumes and gramineous, use them in The time and space differences in the growth process are rationally implemented scientific interplanting, interplanting, mixed seeding, rotation and other supporting plantings, forming a variety of crops, multi-level, multi-sequential three-dimensional intercropping planting structure.
According to the above definition, which of the following belongs to three-dimensional agriculture?
C contracted ten acres of rice fields in a certain area in the south, and specially introduced new high-yielding rice varieties