中国土壤与肥料
中國土壤與肥料
중국토양여비료
SOIL AND FERTILIZER SCIENCES IN CHINA
2009年
6期
41-46
,共6页
水培%盆栽%缩二脲%复混肥%毒害
水培%盆栽%縮二脲%複混肥%毒害
수배%분재%축이뇨%복혼비%독해
solution culture%potted%biuret%compound fertilizers%toxicity
采用水培和盆栽法,研究了复混肥中不同含量的缩二脲对作物生长的影响.水培施肥水平为每升水溶液中复混肥(10-8-7)含量分别为0.5 g和1.0 g,即每升水溶液中含氮量达到56.05 mg和112.1 mg;土壤施肥水平为每千克土壤中复混肥(10-8-7)含量分别为0.5 g和1.0 g,即每千克土壤中含氮量达到56.05 mg和121.1 mg.水培试验结果表明:每升水溶液中,在适宜各供试作物生长的施肥条件下,复混肥中缩二脲对冬小麦、玉米、番茄、油菜、水稻的毒害作用的临界值分别为35、40、20、15、15 mg.盆栽试验结果表明:在适宜各供试作物生长的施肥条件下,缩二脲对冬小麦、玉米、番茄、油菜、水稻的毒害作用的临界值分别为所施复混肥(10-8-7)含量的1.6%、2.0%、2.0%、2.0%、2.0%.当高于这个临界值时,缩二脲对此5种作物会造成毒害作用.考虑到复混肥的实际制造过程中大量使用含氯化肥,氯离子含量波动大,建议国家在制定复混肥产品标准时缩二脲含量应限制在1%以下为宜.
採用水培和盆栽法,研究瞭複混肥中不同含量的縮二脲對作物生長的影響.水培施肥水平為每升水溶液中複混肥(10-8-7)含量分彆為0.5 g和1.0 g,即每升水溶液中含氮量達到56.05 mg和112.1 mg;土壤施肥水平為每韆剋土壤中複混肥(10-8-7)含量分彆為0.5 g和1.0 g,即每韆剋土壤中含氮量達到56.05 mg和121.1 mg.水培試驗結果錶明:每升水溶液中,在適宜各供試作物生長的施肥條件下,複混肥中縮二脲對鼕小麥、玉米、番茄、油菜、水稻的毒害作用的臨界值分彆為35、40、20、15、15 mg.盆栽試驗結果錶明:在適宜各供試作物生長的施肥條件下,縮二脲對鼕小麥、玉米、番茄、油菜、水稻的毒害作用的臨界值分彆為所施複混肥(10-8-7)含量的1.6%、2.0%、2.0%、2.0%、2.0%.噹高于這箇臨界值時,縮二脲對此5種作物會造成毒害作用.攷慮到複混肥的實際製造過程中大量使用含氯化肥,氯離子含量波動大,建議國傢在製定複混肥產品標準時縮二脲含量應限製在1%以下為宜.
채용수배화분재법,연구료복혼비중불동함량적축이뇨대작물생장적영향.수배시비수평위매승수용액중복혼비(10-8-7)함량분별위0.5 g화1.0 g,즉매승수용액중함담량체도56.05 mg화112.1 mg;토양시비수평위매천극토양중복혼비(10-8-7)함량분별위0.5 g화1.0 g,즉매천극토양중함담량체도56.05 mg화121.1 mg.수배시험결과표명:매승수용액중,재괄의각공시작물생장적시비조건하,복혼비중축이뇨대동소맥、옥미、번가、유채、수도적독해작용적림계치분별위35、40、20、15、15 mg.분재시험결과표명:재괄의각공시작물생장적시비조건하,축이뇨대동소맥、옥미、번가、유채、수도적독해작용적림계치분별위소시복혼비(10-8-7)함량적1.6%、2.0%、2.0%、2.0%、2.0%.당고우저개림계치시,축이뇨대차5충작물회조성독해작용.고필도복혼비적실제제조과정중대량사용함록화비,록리자함량파동대,건의국가재제정복혼비산품표준시축이뇨함량응한제재1%이하위의.
In the research,I analyzed the influence on crops caused by different biuret concentrations in compound fertilizers,using pattern of solution culture and potted.In the method of solution culture, 0.5 g(10-8-7) and 1 g(10-8-7)compound fertilizers were added in one litre of water. Thus, the quantity of nitrogen was 56.05 mg/L-1 and 112.1 mg/L-1.And In the method of potted, 0.5 g(10-8-7) and 1 g(10-8-7)compound fertilizers were added in one kilogram of soil. Thus, the quantity of nitrogen was 56.05 mg/kg-1 and 112.1 mg/kg-1. The result of solution culture indicated that there was no toxicity to wheat,corn,tomato and rape when the concentration of biuret was lower than 35,40,20,15 mg per gram of Compound Fertilizer respectively. And the no-toxicity-level to rice was 15 mg biuret in 0.5 gram of compound fertilizer.While in the experiment of potted, no toxicity was detected to wheat,corn,tomato,rape,rice,when the level of biuret was controled under 1.6%,2.0%,2.0%,2.0%,2.0% in their corresponding compound fertilizer respectively. Considering the chlorid were used greatly in the compound fertilizers,the amount of biuret was controled in the one percent.
