Acta Agriculturae Boreali-Sinica ›› 2024, Vol. 39 ›› Issue (S1): 175-186. doi: 10.7668/hbnxb.20194826

Special Issue: Soil fertilizer

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

Effects of Adding Conditioner on Soil Moisture and Nutrients under Different Irrigation and Fertilization Combinations

YANG Jinhan, TIAN Xiaoming, HU Chenyang, SUO Wenkang, DONG Mengmeng, GUO Wei, HAO Xiying   

  1. College of Agriculture and Forestry,Hebei North University,Zhangjiakou 075000,China
  • Received:2024-05-12 Published:2025-01-24

Abstract:

In order to clarify the effects of different irrigation and fertilization combinations on soil nutrients in Bashang area of Zhangjiakou on the basis of adding soil conditioner.Two two-factor tests were set:irrigation frequency and fertilizer amount,irrigation frequency and irrigation amount.Factor one was different irrigation frequency:6 d(D6),8 d(D8)and 10 d(D10).The second factor was different fertilizer dosage:100% fertilizer(F100),conditioner+100% fertilizer(PF100),conditioner+85% fertilizer(PF85),conditioner+70% fertilizer(PF70).The three factors were different irrigation amounts:100% irrigation(W100),85% irrigation(W85),70% irrigation(W70),a total of 24 treatments.The effects of different irrigation and fertilization levels on soil water content and nutrients as well as the changes of nutrients in different soil layers were analyzed.The results showed that the average water content of soil with high frequency or medium frequency irrigation(D6 or D8)was the highest in 0-60 cm soil layer.Compared with medium frequency irrigation(D8)treatment,D6 treatment could significantly increase the soil organic matter content of 0-20 cm and the total nitrogen and available potassium content of 20-40 cm soil.Compared with conventional irrigation and fertilization(F100 and W100),PF100 and PW100 could significantly increase the average soil water content,total nitrogen,available phosphorus and available potassium content in 0-20 cm soil layer,and the average organic matter and nitrate nitrogen content in 20-40 cm soil layer.In addition to the soil conditioner,water reduction and weight loss can still significantly increase the surface soil nutrient content.PF85,PW85 or PF70,PW70 could significantly increase the average soil organic matter(14.4%-19.0%),total nitrogen(2.2%-11.2%),available phosphorus(22.2%-41.7%),available potassium(4.9%-42.8%)and the average soil nitrate nitrogen in 20-40 cm soil layer(20.8%-95.0%).The correlation analysis showed that soil water content was positively correlated with organic matter,total nitrogen and soil available potassium(R2=0.081,0.092 and 0.166)under high frequency irrigation and soil available phosphorus and available potassium(R2=0.114 and 0.153)under medium frequency irrigation.In conclusion,the combination of water and fertilizer with 100% fertilization and 70% irrigation+conditioner(PF100D6 and PW70D6)is the best to improve soil nutrients under high-frequency irrigation conditions.The results can provide a scientific basis for the optimal management of irrigation and fertilization in arid northern China and other areas with similar environment.

Key words: Conditioner, Irrigation frequency, Fertilization amount, Irrigation quantity, Soil water content, Soil nutrient

Cite this article

YANG Jinhan, TIAN Xiaoming, HU Chenyang, SUO Wenkang, DONG Mengmeng, GUO Wei, HAO Xiying. Effects of Adding Conditioner on Soil Moisture and Nutrients under Different Irrigation and Fertilization Combinations[J]. Acta Agriculturae Boreali-Sinica, 2024, 39(S1): 175-186. doi: 10.7668/hbnxb.20194826.

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