Acta Agriculturae Boreali-Sinica ›› 2024, Vol. 39 ›› Issue (2): 136-142. doi: 10.7668/hbnxb.20194121

Special Issue: Soil fertilizer

• Resources & Environment ・ Plant Protection • Previous Articles     Next Articles

Effects of Nitrogen,Phosphorus and Potassium on Yield and Fertilizer Efficiency of Oil Sunflower in Resowing Area of Southern Shanxi

YANG Haifeng, DUAN Xueyan, WEN Lin, LIAN Jin   

  1. Institute of Wheat Research,Shanxi Agricultural University,Linfen 041000,China
  • Received:2023-03-20 Published:2024-04-28

Abstract:

In order to study the effect of applying N,P and K fertilizer on the yield and nutrient use efficiency of oil sunflower under the double cropping pattern of winter wheat-summer oil sunflower in Southern Shanxi,a field plot fertilizer experiment was carried out with Linkui 4 from 2019 to 2021.Four fertilization treatments including NPK,PK,NK and NP were set up.The effects of different fertilization treatments on yield response,agronomic efficiency and fertilizer use efficiency of N,P,K were analyzed.The results showed that the three-year average yield of oil sunflower treated with NPK was 3 634 kg/ha(3 502—3 818 kg/ha),which was 19.6%,12.1%,13.7% higher than that of PK/NK/NP,respectively.PK treatment had the lowest yield.The average yield responses of N,P and K fertilizers were 588.8(481.0—704.7 kg/ha),391.8(296.0—488.7 kg/ha),438.2 kg/ha(329.3—629.7 kg/ha),respectively.The agronomic efficiencies of N,P and K were 3.8(2.8—4.9 kg/kg),3.1(2.1—4.1 kg/kg),2.9 kg/kg(2.2—4.2 kg/kg),respectively.The aboveground accumulations of N,P and K were 174.4(172.5—176.8 kg/ha),60.0(58.3—61.8 kg/ha),241.1 kg/ha(236.2—246.8 kg/ha),respectively.The nutrient use efficiency of N,P,K was 36.3%(36.0%—36.7%),15.7%(15.3%—16.2%)and 47.1%(46.0%—47.9%),respectively,of which K>N>P.So the application of N,P and K fertilizer could not only significantly increase the oil sunflower yield but also the aboveground accumulation of N,P and K.Among the three kinds of NPK fertilizers,N increased the yield most,and K uptake by the aboveground part and utilization rate of oil sunflower was the highest.Therefore,in the production we should pay attention to the reasonable application of N,P and K,while N and K should be supplemented by seed fertilizer and topdressing.

Key words: Oil sunflower, NPK fertilizer, Nutrient use efficiency, Resowing area of Southern Shanxi

Cite this article

YANG Haifeng, DUAN Xueyan, WEN Lin, LIAN Jin. Effects of Nitrogen,Phosphorus and Potassium on Yield and Fertilizer Efficiency of Oil Sunflower in Resowing Area of Southern Shanxi[J]. Acta Agriculturae Boreali-Sinica, 2024, 39(2): 136-142. doi: 10.7668/hbnxb.20194121.

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