张鹏飞, 杨娜, 王珂, 杨志国, 王慧, 王晓民, 张建诚. 不同耕作方式与有机肥施用对旱地麦田土壤磷组分的影响[J]. 中国生态农业学报 (中英文), 2024, 32(9): 1−8. DOI: 10.12357/cjea.20240247
引用本文: 张鹏飞, 杨娜, 王珂, 杨志国, 王慧, 王晓民, 张建诚. 不同耕作方式与有机肥施用对旱地麦田土壤磷组分的影响[J]. 中国生态农业学报 (中英文), 2024, 32(9): 1−8. DOI: 10.12357/cjea.20240247
ZHANG P F, YANG N, WANG K, YANG Z G, WANG H, WANG X M, ZHANG J C. Effects of different tillage measures and organic manure application amount on soil phosphorus fractions in dry-land wheat fields[J]. Chinese Journal of Eco-Agriculture, 2024, 32(9): 1−8. DOI: 10.12357/cjea.20240247
Citation: ZHANG P F, YANG N, WANG K, YANG Z G, WANG H, WANG X M, ZHANG J C. Effects of different tillage measures and organic manure application amount on soil phosphorus fractions in dry-land wheat fields[J]. Chinese Journal of Eco-Agriculture, 2024, 32(9): 1−8. DOI: 10.12357/cjea.20240247

不同耕作方式与有机肥施用对旱地麦田土壤磷组分的影响

Effects of different tillage measures and organic manure application amount on soil phosphorus fractions in dry-land wheat fields

  • 摘要: 为探讨耕作措施和有机肥施用对旱地麦田土壤磷组分的影响, 本研究依托2007年布设的黄土高原旱地小麦耕作与施肥长期定位试验, 采用Tiessen磷素分级方法, 系统研究了深翻+化肥(T)、深翻+鸡粪+化肥(TM)、免耕+化肥(NT)和免耕+鸡粪+化肥(NTM) 4种农艺措施下麦田0~20 cm土层有效磷、全磷和磷组分分布特征。结果表明: 1) NT处理有效磷含量较T处理提高58.37%, 有机肥处理(NTM和TM)有效磷和全磷含量均显著高于不施有机肥处理(NT和T), NTM处理的有效磷和全磷含量较TM处理分别显著提高11.43%和43.41%; 2) NT、NTM和TM处理可不同程度提高0~20cm土层活性无机磷组分Resin-Pi和NaHCO3-Pi以及中活性无机磷组分NaOH-Pi含量, 尤其以NTM和TM处理效果最好; 3) NT处理的NaHCO3-Po和NaOH-Po较T处理分别提高53.07%和55.56%, NTM处理的这2种组分含量较TM处理显著提高90.84%和60.31%; NT处理Residual-P较T以及NTM处理Residual-P较TM处理分别提高12.90%和36.60%; 4) 17 a长期定位试验地每年施入的磷肥在土壤中有盈余, 残留的磷主要以NaHCO3-Pi、D·HCl-Pi、NaHCO3-Po和C·HCl-Po形态存在, 免耕增施有机肥促进了稳定性磷(C·HCl-Po)向活性磷(NaHCO3-P)和潜在活性磷(NaOH-P)的转化, 偏最小二乘(PLS)回归分析结果表明, NaHCO3-Pi和NaOH-Pi是最有效的磷源, 对小麦产量的提升贡献较大, NTM处理对这2种磷组分积累的促进效果最明显。综上, 免耕增施有机肥是发展黄土高原旱作农业值得推广的农艺措施, 同时在推广应用时需要考虑减少化学磷肥用量。

     

    Abstract: In order to explore the effects of tillage measures and organic manure application on soil phosphorus fractions in dry-land wheat field, based on a long-term positioning experiment of tillage and fertilizer (since 2007) in the Loess Plateau, through using the soil phosphorus classification method of Tiessen, we have systematically studied the soil available phosphorus, total phosphorus, and phosphorus fractions distribution characteristics in 0−20 cm soil layer under 4 agronomic measures including deep tillage + chemical fertilizer (T), deep tillage + chicken manure + chemical fertilizer (TM), no tillage + chemical fertilizer (NT) and no tillage + chicken manure + chemical fertilizer (NTM). The results showed that: 1) Compared to T treatment, the soil available phosphorus content of NT treatment was increased by 58.37%, the available phosphorus and total phosphorus contents under organic fertilizer treatments (i.e. NTM and TM treatments) were higher than that under no organic fertilizer treatments (i.e. NT and T treatments). Compared to TM treatment, the available phosphorus and total phosphorus contents under NTM treatment were increased by 11.43% and 43.41%, respectively. 2) NT, NTM and TM treatments could improve the contents of the active inorganic phosphorus fractions of Resin-Pi, NaHCO3-Pi and moderate active inorganic phosphorus fractions of NaOH-Pi, especially under NTM and TM treatments. 3) Compared to T treatment, the contents of NaHCO3-Po and NaOH-Po under NT treatment were increased by 53.07% and 55.56%, respectively. Compared to TM treatment, the above two fractions under NTM treatment were increased by 90.84% and 60.31%, respectively. Compared to T treatment, the Residual-P content under NT treatment was increased by 12.90%, and the Residual-P content under NTM treatment was increased by 36.60% compared to TM treatment. 4) There was a surplus of phosphorus fertilizer applied in each year in the 17a long-term positioning test base, and the residual phosphorus mainly existed in the form of NaHCO3-Pi, D·HCl-Pi, NaHCO3-Po and C·HCl-Po. No tillage and organic manure could promote the translation from stable phosphorus (C·HCl-Po) to active phosphorus (NaHCO3-P) and potentially mobile phosphorus (NaOH-P). Partial least squares (PLS) regression analysis indicated that NaHCO3-Pi and NaOH-Pi were the most effective phosphorus sources, and their contributions were much greater to wheat yield. The NTM treatment showed the most obvious effect on promoting accumulation of the 2 kinds of phosphorus fractions. Therefore, no tillage and organic manure is an agronomic practice worth promoting in dry-land wheat field in this area, but reduction of chemical phosphate fertilizer application mount should be considered in the promotion and application.

     

/

返回文章
返回