Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (S1): 240-247. doi: 10.7668/hbnxb.20193002

Special Issue: Radish Soil fertilizer

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

Application Effect of Sulfonated Biochar-based Compound Fertilizer on Potted Carrots

GAO Lichao1, GUO Xinsong2, ZHENG Wenkui1,2, GAO Qiang3, ZHANG Min1   

  1. 1 National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment,Shandong Agricultural University,Tai'an 271018,China
    2 Shandong Agricultural University Fertilizer Technology Co.,Ltd.,Feicheng 271600,China
    3 Shandong Lubei Chemical Industry Co.,Ltd.,Binzhou 251909,China
  • Received:2022-07-01 Published:2022-12-28

Abstract:

In order to explore the application effect of a new type of biochar-based compound fertilizer prepared by low temperature carbonization of waste organic sulfuric acid,a pot experiment was carried out with Xiaoding bacunshen as the test carrot variety and saline fluvo-aquic soil as the test soil. A total of 11 treatments were set up with 5 kinds of compound fertilizers and their carbon-based compound fertilizer formula treatments,and the effects of 5 kinds of biochar-based compound fertilizer formulas on carrot yield and soil nutrient content were studied. Results showed different fertilization significantly promoted the increase of fresh weight of carrot fleshy roots. Among them,carrots treated with 12-6-10 sulfur-based compound fertilizer with 15% carbon content had the highest fresh weight of fleshy root biomass,with a fresh weight of 313.85 g/plant,and the 10-5-20 chlorine-based fertilization treatment had the lowest yield of carrots. In contrast,10-5-20 chlorine based compound fertilizer had the lowest carrot yield. Compared with common compound fertilizers,those 5 kinds biochar-based compound fertilizers had significant effects on the increase of fresh weight of carrot fleshy root,with the range of increase of 2.1%-11.3%,and increased the accumulation of nitrogen,phosphorus and potassium in different degrees. In addition,the soil available N,P and K supply could be maintained by applying biochar-based compound fertilizer with 15% reduction of N,P and K nutrient application,and soil nutrients were still significantly increased in some periods. Application of biomass sulfonated carbon fertilizer could reduce the soil pH at the early stage of carrot growth,but there was no significant difference in soil pH at the mature stage of carrot. In conclusion,compared with common compound fertilizer,the application of biomass sulfonated carbon fertilizer could reduce the soil pH,increase the accumulation of nitrogen,phosphorus and potassium of carrot and the soil available nitrogen,olsen phosphorus and available potassium supply,which was conducive to carrot yield increase.

Key words: Carrot, Sulfonated, Biochar-based compound fertilizer, Yield, Soil fertility

Cite this article

GAO Lichao, GUO Xinsong, ZHENG Wenkui, GAO Qiang, ZHANG Min. Application Effect of Sulfonated Biochar-based Compound Fertilizer on Potted Carrots[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(S1): 240-247. doi: 10.7668/hbnxb.20193002.

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