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在一定范围内,玉米根系的数量、干重和籽粒产量,均随密度的增加而增加。不同种植方式对玉米根系和产量均有一定影响,过于不均衡的种植方式会使田间根系分布过于不均,生长不良,从而影响地上部的生长发育和最终产量的提高。在肥沃而结构良好的土壤上,可以适当减少中耕次数,降低成本而并不影响产量;中耕培土过多,不利于气生根的发育,因而不抗倒伏。
Within a certain range, the number of maize roots, dry weight and grain yield increased with increasing density. Different planting methods had certain influence on the root system and yield of maize. Too uneven distribution of root system would lead to uneven distribution and poor growth of the field, which would affect the growth and development of shoots and the increase of final yield. In fertile and well-structured soils, the number of cultivation can be appropriately reduced and the cost can be reduced without affecting the yield. Cultivating too much soil with cultivated land is not conducive to the development of aerial roots and thus is not lodging resistance.