Zhang Zhongxian,Shuai Jiafu,Zhang Wei,et al.Effect of Manure and Nitrogen Fertilizer on Supply of Phosphorus in Hongyou Soil[J].Research of Soil and Water Conservation,1987,(02):18-26.
厩肥和氮肥对红油土中供磷状况的影响
- Title:
- Effect of Manure and Nitrogen Fertilizer on Supply of Phosphorus in Hongyou Soil
- 摘要:
- 1961—1964年以武功头道塬的红油土进行了示踪试验，初步结果为：1.施用磷肥不仅可提供值物以大量可给态磷素，而且不影响植物对土壤磷的利用。2.厩肥富含磷素，它既能提供植物所需的磷素，又能以其所含的氮素和腐殖化有机质增进土壤供磷能力，但肥料磷的吸收量略有下降。3.配合施用氮肥后，植物对磷肥和土壤磷的吸收量均有增高。磷肥肥效的提高主要取决于间接的生物作用，而直接的化学作用仅局限于硫酸铵。
- Abstract:
- Trace experiments have shown that: 1.Application of phosphatic fertilizer not only provided a great deal availble phosphorus to plants,but also did not effect utilization of the soil phosphorus by plants. 2. Manure was able to provide phosphorus itself,at the same time eahanced the ability of supplying phosphorus from soils. But absorption of the phosphorus from fertilizer was reduced slightly. 3. Nitrogen fertilizer simultaneity promoted absorption of the soil and fertilizer phosphorus by plants. That was mainly depened on indirect biological function,and direct chemical function was only limited to (NH4)2S04.
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