研究高产作物的新品种

high-yield evolving high yield alloy high yield and high quality crop new three highs agriculture (high yield, high quality and high efficiency agriculture) crop barrier crop restriction grass crop crop type crop conditioner high yield crop evolving new breeds registration of crop varieties breeding of new varieties new disease-resistant varieties new soybean varieties new high-yielding rice varieties creating new varieties of plants breed new varieties of corn new crop (NC)