不同元素配施对玉米营养吸收的影响  

Effect of Different Element Formula on Nutrient Uptake in Maize

作　　者：安景文[1] 解占军[1] 王成[1] 邱卫文[1] 李影 

机构地区：[1]辽宁省农业科学院环境资源与农村能源研究所,辽宁沈阳110161 [2]辽宁省北宁市农业技术推广中心,辽宁北宁121300

出　　处：《杂粮作物》2003年第3期171-173,共3页Rain Fed Crops

摘　　要：盆栽试验结果表明:在此土壤条件下,施钾和微量元素对根系的发育有促进作用,有效地防止早衰,使其活秆成熟;硫酸锌和稀土对植株的生长无促进作用,三元素复合肥配施复合微肥效果最好;钾能促进氮从根系往植株体运输,稀土不利于氮素向籽实转移,锌和复合微肥对氮的吸收无明显作用;各种微量元素对磷的吸收无明显影响;氮磷肥有助于钾的吸收和运输;ZnSO4和稀土可能延迟钾的吸收,随着生育时期的延迟,植株和根系的含钾量随之降低。The results of the pot culture experiment showed that potassium and microelement can advance the development of root system and avoid presenility and staygreen in this kind of soil. Zinc sulphate and rareearth metal can not promote the growth of plants. The formula using compound fertilizer of nitrogen, phosphorus and potassium and compound micronutrient has best effect. Potassium can promote the transportation of nitrogen from root system to plant. But rareearth metal is disadvantageous to the transfer of nitrogen to the seeds. Zinc and compound micronutrient has not obvious effect on nitrogen uptake. Nitrogen and phosphorus is beneficial to the uptake and transportation of potassium. Zinc sulphate and rareearth metal may delay the uptake of potassium. With she the delaying of the growth, the content of potassium in the plant and root system will fall.

关 键 词：玉米 锌 稀土 复合微肥 营养吸收 

分 类 号：S513.062[农业科学—作物学]