摘要： 盆栽条件下,研究了不同矫治技术对石灰性土壤大豆植株缺铁症状的改善效果和产量的影响。结果表明:大豆植株缺铁症状严重的时期是在开花前(播种后一个月)至盛花期,该时期是补施铁肥的最佳时期;本试验中,有机肥+硫酸亚铁(比例为10∶1)处理在改善大豆植株缺铁症状和提高单株产量方面效果最佳;大豆初花期叶面喷施螯合态铁肥在改善大豆植株缺铁症状和提高产量方面的效果均优于喷施硫酸亚铁溶液处理,是大豆追施铁肥较好的方法。
关键词:
盆栽试验,
大豆植株,
缺铁症状
Abstract: A pot experiment was conducted to study the improving results of iron deficiency symptom and effects on yield for Soybean plants applying different correction techniques in calcareous soil.The results showed that the period from before flowering to flourishing flowering was serious stage for soybean plants lack iron,which was the best stage of applying iron fertilizer.Organic fertilizer+ferrous sulfate(proportion 10 ∶ 1)as basal fertilizer was the best technique among all correction techniques which improved the symptom of lack iron nutrition and increased yield per plant also.Spraying chelate iron as dress fertilizer achieved higher yield and better improved the symptom of lack iron nutrition for Soybean than spraying ferrous sulfate treatment.
Key words:
Pot experiment,
Soybean plants,
Iron deficiency symptom
中图分类号:
董志强, 张丽华, 裴翠娟, 赵双进, 贾秀领, 张孟臣. 石灰性土壤大豆植株铁营养障碍解除技术研究[J]. 华北农学报, 2011, 26(S2): 122-124. doi: 10.7668/hbnxb.2011.S2.028.
DONG Zhi-qiang, ZHANG Li-hua, PEI Cui-juan, ZHAO Shuang-jin, JIA Xiu-ling, ZHANG Meng-chen. Study on Technique of Relieving Lack Iron Nutrition for Soybean Plants in Calcareous Soil[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(S2): 122-124. doi: 10.7668/hbnxb.2011.S2.028.