磷是玉米生长发育中所必需的大量元素之一,在玉米的产量因素中起到至关重要的作用,而由于我国土壤中有效态磷缺乏、施入的磷肥利用率不高,以及磷肥资源不足等因素,限制了玉米产量的提高。玉米不同基因型吸收和利用土壤养分效率方面的差异,为充分利用玉米自身潜力挖掘土壤潜在磷源开辟了新的途径,同时在缓解农业中磷污染方面具有重要的应用价值和广泛的发展前景。研究和发掘玉米自身磷营养高效的遗传潜力,通过耐低磷玉米自交系的筛选并进行杂交育种,是培育 Phosphorus is one of a large number of elements necessary for the growth and development of corn and plays a crucial role in the yield factors of maize. However, due to the lack of available phosphorus in the soil and the utilization of phosphate fertilizer applied in the soil is not high, Insufficient and other factors, limiting the increase of corn yield. The differences in efficiency of soil nutrient absorption and utilization by different genotypes of maize open up new avenues for making full use of potential of maize to tap potential phosphorus sources in soil and have important application value and broad development prospects in alleviating phosphorus pollution in agriculture. Research and explore the genetic potential of maize own phosphorus nutrition efficient, through the screening of low-phosphorus-tolerant maize inbred lines and hybrid breeding, is to cultivate