Effects of Silicon, Calcium, Magnesium, Phosphorus and Potassium Fertilizer Rateson Rape Yield and Utilization of Phosphorus and Potassium

doi:10.11924/j.issn.1000-6850.casb15040067

Abstract

Abstract: In order to explore the application effect of silicon, calcium, magnesium, phosphorus and potassium fertilizer on rape, a field plot experiment was conducted during 2013-2014 in Anhui Province to investigate the effects of silicon, calcium, magnesium, phosphorus and potassium fertilizer on the rape yield, utilization of phosphorus and potassium and soil nutrient contents. The results showed that in comparison with farmer practice fertilizer (CF₁) and farmer practice fertilizer with phosphorus and potassium halving (CF₂), silicon, calcium, magnesium, phosphorus and potassium fertilizer could increase yield of rape. And the yield was 4.0%-20.8% and 10.2%-28.0% more than that of CF₁ and CF₂, respectively. Silicon, calcium, magnesium, phosphorus and potassium fertilizer could increase the number of seeds per pod. With the increasing of the application amount, contents and uptake amounts of phosphorus and potassium in grain increased, and the application of 1500 kg/hm² (T₁₀₀) was higher than farmer fertilizer practice. Silicon, calcium, magnesium, phosphorus and potassium fertilizer could increase soil available calcium, available magnesium and pH, but had no significant effects on soil organic matter and available nitrogen content. It suggested that the yield of rape, phosphorus and potassium absorption and soil nutrient contents could be significantly improved by the rational application of silicon, calcium, magnesium, phosphorus and potassium fertilizer, which was 1500 kg/hm² (T₁₀₀).

CLC Number:

S147.2

Li Min,Ye Shuya,Liu Feng,Guo Xisheng and Huang Yide. Effects of Silicon, Calcium, Magnesium, Phosphorus and Potassium Fertilizer Rateson Rape Yield and Utilization of Phosphorus and Potassium[J]. Chinese Agricultural Science Bulletin, 2015, 31(30): 114-118.

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