| 摘要: |
| 盆栽试验结果表明，施磷能显著促进大豆和玉米生长，提早出叶，使幼苗生物学产量提高，磷对作物地上部生长的促进作用大于地下部，使两种作物的根茎比降低。施磷提高了两种作物各器官的磷含量，使玉米叶片和大豆根系中砰的比例增大，改变了根磷与茎磷比值；也增加了两种作物根系中根尖对磷的累积。在两种作物的定位叶片中有磷的输出，使叶片中无机磷组分减少，核蛋白磷组分相对增加。 |
| 关键词: 磷肥，玉米，大豆，苗期，根茎比 |
| DOI： |
| 分类号:S565.106.2 |
| 基金项目: |
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| The Effects of P Fertilization of the Seedling Growth of Maize and Soybean |
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Zbao Baishan Zhai Bingniau
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| Abstract: |
| Pot experiment results show that P fertilization significantly promoted the growth and early leafing for maize and soybean,and raised the biological production of their seedlings.The promotion of P fertilizer to the above-ground plants was higher than to the roots.and therefore reduced the ratios of roots to stems( R/S).Application of P fertilizer raised P contents in all organs,made the proportion of the accumulated P higher in maize leaves and soybean roots,and changed the ratio of root P to the stem P(R-P/S-P).In addition,P fertilization enhanced P accumulation in the root tips of the two crops.In some fixed leaves for the study of the two crops, P transfer from theleaves was found,and therefore inorganic P in leaves was reduced and the P component in nucleoprotein increased. |
| Key words: Phosphate fertilizer,maize, soybean, seedlings, ratios of roots to stems |
