ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (6): 132-140. doi: 10.7668/hbnxb.20192414

Special Issue: Potato crops Soil fertilizer Hot Article

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

Effects of Plastic Film Mulch and Supplementary Irrigation on Potato Yield and Rhizosphere Soil Microbiological Characteristics in Semi-arid Areas

ZHANG Rui1, WANG Tengfei1,2, ZHANG Meihua1, ZHANG Yongsheng3, YANG Changyu1, CHEN Zhipi3   

  1. 1. College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, China;
    2. Pingliang Academy of Agricultural Sciences, Pingliang 744000, China;
    3. Dingxi Hydraulic Research Institute, Dingxi 743000, China
  • Received:2021-09-11 Published:2021-12-28

Abstract: In order to reveal the response relationship between potato yield and rhizosphere soil microbiological characteristics under plastic film mulching and supplementary irrigation technology in semi-arid area,field experiments of potato mulching and supplementary irrigation were carried out in Dingxi irrigation experimental station of Gansu Province,which included six treatments,drip irrigation under plastic film(PFID),drip irrigation under semi mulching(PHID),furrow irrigation with full film mulching(PFIF),furrow irrigation without film mulching(PNIF),border irrigation with plastic film mulching(PFIB),and no irrigation in border field covered with plastic film(PFIBN).Flat planting without film and no irrigation(PNIN) was used as control.The effects of different treatments on potato yield,rhizosphere soil organic matter(TOM),organic carbon(TOC),microbial biomass carbon(MBC),microbial biomass nitrogen(MBN),urease and catalase were analyzed.The results showed that mulching methods had significant effects on rhizosphere soil microbiological properties under drip irrigation and furrow irrigation.MBC and MBN of full film mulching treatment were significantly higher than that of half mulching treatment,while urease and catalase activities of semi mulching or no mulching treatment were significantly higher than that of full mulching treatment(P <0.05).On the other hand,the activity of urease and catalase of all supplementary irrigation treatments(PFID,PHID,PFIF,PNIF,PFIB) were significantly higher than control treatment(PNIN).The potato yield,number of tubers per plant and tuber weight per plant of supplemental irrigation treatment were also significantly higher than control treatment.In particular,the yield of semi mulched drip irrigation treatment(PHID) was 44 603.70 kg/ha,which was 51.00% higher than control.Correlation analysis showed that potato yield was highly significant correlated with MBC,urease activity and catalase(P <0.01),and positively correlated with TOM and TOC(P <0.05).

Key words: Potato, Plastic film mulch, Supplementary irrigation, Soil microbiological characteristics, Yield

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Cite this article

ZHANG Rui, WANG Tengfei, ZHANG Meihua, ZHANG Yongsheng, YANG Changyu, CHEN Zhipi. Effects of Plastic Film Mulch and Supplementary Irrigation on Potato Yield and Rhizosphere Soil Microbiological Characteristics in Semi-arid Areas[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(6): 132-140. doi: 10.7668/hbnxb.20192414.

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