KONG Xiang-qing,WEI Jian-ming,CHANG Guo-wei,et al.Effect of Biochar on the Physical and Chemical Properties of Saline-alkali Soil and Soybean Yield[J].Soybean Science,2018,37(04):647-651.[doi:10.11861/j.issn.1000-9841.2018.04.0647]
生物炭对盐碱土理化性质及大豆产量的影响
- Title:
- Effect of Biochar on the Physical and Chemical Properties of Saline-alkali Soil and Soybean Yield
- Keywords:
- Saline-alkali soil; Biochar; Moisture permeability; Nutrient content; Soybean
- 文献标志码:
- A
- 摘要:
- 为改良松嫩平原盐碱地土壤地力,提高作物产量,对生物炭改良盐碱土的技术理论进行完善,用随机区组设计,研究了不同生物炭用量对盐碱土水分渗透性及大豆产量的影响。结果表明,生物炭增加了盐碱土水分渗透性能,生物炭处理Y3初始渗透速率、平均渗透速率、稳定渗透速率、累积入渗量和饱和渗透系数分别为CK的23.75,28.46,23.69,24.42和24.79倍。生物炭增加了盐碱地的有机质、速效磷、速效钾、全氮、全磷和全钾含量。生物炭处理Y3的大豆产量最高,单株产量达3.17 g,为CK的2.22倍。
- Abstract:
- In order to improve the soil fertility of saline-alkali soil in Songnen plain and increase local crop yield, the thechnical theory of improving saline-alkali land with biochar is proposed. This experiment adopted randomized block design with different dosages of biochar, and the soil moisture permeability and soybean yield were researched. The results showed that biochar could increase the soil moisture permeability. The initial infiltration rate, average penetration rate, steady infiltration rate, cumulative infiltration amount, and saturated permeability coefficient in treatment Y3 were 23.75, 28.46, 23.69, 24.42 and 24.79 times of CK respectively. The biochar increased the content of organic matter, available phosphorus, available potassium, total nitrogen, total phosphorus and total potassium. The soybean yield reached the maximum value 3.17 g per plant in Y3, and was 2.22 times of CK.
参考文献/References:
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备注/Memo
收稿日期:2017-12-07基金项目:国家十三五重点研发项目(2017YFD0200803);黑龙江省自然科学基金(QC2017023);黑龙江八一农垦大学博士科研启动项目(XYB2014-0.5);黑龙江省政府博士后资助项目(LBHZ17186);农垦总局科技攻关项目(HNKXIV-02-05-06)。