- Volume 21 Issue 4
Studies on lead uptake by crops and reduction of it's damage. -IV. Effects of application of calcium and phosphate materials on lead uptake by upland crops
농작물(農作物)에 대(對)한 납(Pb)의 흡수(吸收) 및 피해경감(被害輕減)에 관(關)한 연구(硏究) -IV. 밭작물(作物)의 납 흡수이행(吸收移行)과 석회(石灰) 및 인산(燐酸)의 영향(影響)
- Kim, Bok-Young (Agricultural Sciences Institute) ;
- Kim, Kyu-Sik (Agricultural Sciences Institute) ;
- Han, Ki-Hak (Agricultural Sciences Institute)
- Published : 1988.12.30
A pot experiment was conducted to find out the effects of application of slacked lime and fused super-phosphate on the lead uptake of upland crops in a lead added soil. Lead concentration of the soils were adjusted to 0, 150, 300mg/kg respectively. The slacked lime was applied at the equivalent amount of lime requirement with extra 150kg/10a, and 2 times for the fused superphosphate. The results obtained were as follows: 1. Lead contents in crops increased in the order: sesame > maize > potato > sweet potato > soybean > green perilla > peanut > red bean. 2. Lead contents in parts of crops were increased in the order; root > stem > leaf > grain. 3. Increasing lead concentration in soils, lead content in the plant was increased and crops yield were decreased. 4. Lead contents in soybean and green perlilla were decreased in slacked lime application treatment. 5. The lead contents in leaf and grain of soybean and green perllila decreased with decreasing in the ratio of Pb/Ca+Mg equivalent in soil. 6. Grain yield were increased in slacked lime, but were decreased in fused superphosphate application treatment. 7. With increasing the soil Pb contents, calcium and phosphate contents were increased in leaf and stem, but calcium was decreased in roots. 8.