CAJ | 학술논문

为了解腐殖酸和水旱轮作共同作用对镉污染土壤中种植的水稻稻糙米品质的影响，采用随机组合设计进行了土壤盆栽试验，在水旱轮作的两种土壤（稻田土和菜田土）中添加0、0.1、1.0和10.0 g/m2的腐殖酸，测定糙米中重金属镉元素以及微量营养元素铁、锌、镁和钙的含量。结果表明，在稻田土和菜田土中分别添加10.0和1.0 g/m2腐殖酸时，糙米中镉含量分别比空白对照降低了40%和14.8%；添加腐殖酸处理的水稻，其糙米中必需元素 Fe、Zn、Mg 和 Ca 的含量均比未添加腐植酸处理的高，且差异显著；尤其是当腐殖酸添加量为1.0 g/m2时，糙米中 Mg 含量增加了50.42~72.60 mg/kg；另外，水旱轮作降低了糙米中的镉元素含量，也提高了微量营养元素的含量。这说明腐殖酸和水旱轮作共同作用有利于提高水稻糙米的品质。
위료해부식산화수한륜작공동작용대력오염토양중충식적수도도조미품질적영향，채용수궤조합설계진행료토양분재시험，재수한륜작적량충토양（도전토화채전토）중첨가0、0.1、1.0화10.0 g/m2적부식산，측정조미중중금속력원소이급미량영양원소철、자、미화개적함량。결과표명，재도전토화채전토중분별첨가10.0화1.0 g/m2부식산시，조미중력함량분별비공백대조강저료40%화14.8%；첨가부식산처리적수도，기조미중필수원소 Fe、Zn、Mg 화 Ca 적함량균비미첨가부식산처리적고，차차이현저；우기시당부식산첨가량위1.0 g/m2시，조미중 Mg 함량증가료50.42~72.60 mg/kg；령외，수한륜작강저료조미중적력원소함량，야제고료미량영양원소적함량。저설명부식산화수한륜작공동작용유리우제고수도조미적품질。
In order to understand the interaction effects ofhum ic acid and paddy-upland rotation on rice quality in cadm ium contam inated soil,a potexperim entw as setup in the m ethod ofrandom block design,hum ic acid w as 0,0.1,1 and 10 g/m 2 m eterin tw o kinds ofsoilw ith paddy-upland rotation,the contentofcadm ium in brown rice w ould be determ ined afterharvest,the contents ofm icroelem ents ofiron,zinc, magnesium and calcium in brown rice w ould be determ ined in the m eantim e.The results show ed thatw ith increasing hum ic acids in the tw o kinds ofsoils ,the contentofcadm ium in brown rice and the soilcadm ium absorption coefficientw ere decreased,40% offin rice fields and 14.8% off in vegetable fields. w hile the content of essential elem ents of iron, zinc, magnesium and calcium in rice w ere increased significantly, especially w hen the hum ic acids reaching 1 g/m 2, the content of M g had increased 50.42~72.60 mg/kg. In addition, paddy-upland rotation not only reduced the cadm ium content in brown rice but increased the contents of m icroelem ents. The study can conclude thatthe integration ofhum ic acid and paddy-upland rotation isgood forthe im provem entthe quality of brown rice.