摘要
黄淮海平原中低产地区浅层咸水型盐渍化土壤,由于有效钼及有效铁含量较少,对花生采用钼拌种再根外追施硫酸亚铁取得了显著的增产效果(比对照增产达48%左右)。硫酸亚铁喷施浓度与花生荚果产量间存在着非线性回归关系。在1%硫酸亚铁浓度范围内,产量与浓度呈显著正相关(r=0.9878);但浓度超过1%以上时,则两者呈显著负相关。根外追铁的最适浓度在1%左右。稀土元素对花生也有极明显的增产效果。
The effective Mo and Fe in sating soil of Huang-Huai-Hai plain were less.The significant incresing yield effect have been gained by with seeds dre-ssing Mo and additional ferrous sulphate in peanut plants,peanut increa-sed yield about 48% than ck.The nonlinear regression relationships showed between concentration of ferrous sulphate and peanut yield.The peanut yield and ferrous sulphate concentration showed significant positive-correlation(r=0.9898)in 1% concentration range,but the voth appear negative correlation if concentration was over 1 %.The optimum concentration of additional Fe2+ is about 1%.
出处
《中国油料》
CSCD
北大核心
1991年第1期55-58,共4页
关键词
花生
盐渍化
土壤
施肥
稀土
增产
Salting soil
Peanut
Microelement fertilizer