Study on the characteristics of physiochemical properties environment with super high-yield corn
2008
Wang Hongbin | Zhao Lanpo | Wang Shuhua
chinois. 对吉林省超高产玉米田与农民传统耕作玉米田土壤理化性质比较分析，研究超高产条件下玉米田土壤的理化环境特征。研究结果表明，超高产玉米田土壤物理肥力特性较高，主要表现在耕层较深厚，土壤容重变化存1．01～1．26g／cm. ，土壤的结构破坏率较低；在土壤的化学环境特征方面，土壤碱解氮、速效磷、速效钾等均未表现出明显的变化规律；所有超高产田的土壤阳离子交换量（CEC）均不同程度地高于普通生产田，这与超高产田的定向培育有直接关系；一些超高产田有机质低于普通生产田，其原因与超高产田氮素施用量较高、促进了土壤有机质矿化有关。[著者文摘]
Afficher plus [+] Moins [-]anglais. Through comparing analysis of soil physiochemical character of super high production cornfield and tradition cultivation cornfield in Jilin Province, we had initially understood the cornfield soil physiochemical character under the super high-production condition. The results indicated that the soil physical fertility characteristic of super high-production cornfield was high, mainly display in the topsoil was deep, soil bulk density changed between 1.01-1.26 g/cm. , disarrangement rate of soil structure was low. In soil chemical environment characteristic aspect, the soil alkali-hydrolyzable nitrogen, the rapidly available phosphorus, the rapidly available potassium and so on hadn＇t displayed the obvious change rule. All super high-yield field＇s CEC varying degree was higher than the ordinary production field, and this had the direct relation with the super high-yield field＇s directed cultivating. Some super high-yield field organic matter was lower than the ordinary production field. The reason had related with the super high-yield field high employment quantity of nitrogen.
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