论文部分内容阅读
探讨了田间条件下钢渣硅肥的用量和施用方法。结果表明:供试土壤的水浸态硅含量低于85mgkg-1,施用钢渣硅肥能够显著提高水稻的产量;依据产量和肥料用量关系的效应方程,除康平地区的碱性水稻土外,供试的其它地区比较合理的钢渣施用量为1500kghm-2;钢渣硅肥可明显提高水稻植株体内SiO2含量,根据水稻植株体内SiO2含量随钢渣硅肥施入量的变化情况,沈阳市康平县最佳的施入量也应为1500kghm-2,钢渣基施更有利于水稻对SiO2吸收和利用;钢渣硅肥对土壤pH值影响不大,钢渣硅肥具有一定的后效。
The dosage and application method of slag silicon fertilizer under field conditions were discussed. The results showed that the content of silicon in the soils under test was less than 85mgkg-1. The application of steel slag silicon fertilizer could significantly increase the yield of rice. According to the effect equation of the relationship between yield and fertilizer consumption, except the alkaline paddy soil in Kangping area, In other areas of the trial, the reasonable amount of steel slag was 1500 kghm-2. Steel slag silicon fertilizer could obviously increase the content of SiO2 in rice plants. According to the change of SiO2 content in rice plants with the amount of silicon fertilizer applied, Of the amount should also be 1500kghm-2, based on steel slag is more conducive to rice absorption and utilization of SiO2; slag silicon fertilizer on the pH value of the soil is not significant, slag silicon fertilizer has a certain effect.