黑龙江省北部早熟地区玉米种植中存在的限制因素及其解决措施
흑룡강성북부조숙지구옥미충식중존재적한제인소급기해결조시
Constrict Factors and Countermeasures of Maize Planting in Northern Premature Areas of Heilongjiang
저자의 최근 논문