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Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (30): 122-126.doi: 10.11924/j.issn.1000-6850.2014-1521

Special Issue: 水稻

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The Effects of Silicon, Calcium, Magnesium, Phosphorus and Potassium Fertilization Level on Yield and Phosphorus and Potassium Absorption of Super Rice

  

  • Received:2014-05-28 Revised:2014-05-28 Accepted:2014-06-17 Online:2014-10-31 Published:2014-10-31

Abstract: In order to explore the application effect of silicon, calcium, magnesium, phosphorus and potassium fertilizer on super rice, a field plots experiment was conducted to investigate the effects of silicon, calcium, magnesium, phosphorus and potassium fertilizer on the yield and phosphorus and potassium absorption of rice and soil nutrient contents. The results showed that in comparison with farmer custom fertilizer (CF1) and custom fertilizer with phosphorus and potassium halving (CF2), silicon, calcium, magnesium, phosphorus and potassium fertilizer could increase yield of super-rice, and the yield increased 1.87%-10.65% and 3.69%- 12.63% , respectively. The yield was consistent between T100 and T125. Silicon, calcium, magnesium, phosphorus and potassium fertilizer could increase filled grain. With the increasing of the application, contents and uptake amounts of phosphorus and potassium in grain and straw increased. Silicon, calcium, magnesium, phosphorus and potassium fertilizer could increase soil available phosphorus, available potassium and pH value, but had no significant effects on soil total nitrogen, total phosphorus, organic matter and available nitrogen content. The feasible silicon, calcium, magnesium, phosphorus and potassium fertilization was 1500 kg/hm2 (T100) and the yield, phosphorus and potassium absorption and soil nutrient contents would be increased.