Acta Agriculturae Boreali-Sinica ›› 2026, Vol. 41 ›› Issue (4): 185-192. doi: 10.7668/hbnxb.20196463

Special Issue: Oil crops Soil fertilizer Saline-alkali stress

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

Effects of Organic Conditioning Agents with Different Compound Ratios on Soybean Growth and Soil Traits in Coastal Salinized Farmland

GUO Liuming, LU Shuchang   

  1. College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2025-09-28 Published:2026-08-28

Abstract:

Soil salinization is an important constraint on the improvement of farmland productivity.In view of the poor quality and low productivity of coastal salinized soil,a pot experiment was set up to explore the effects of different dosages and ratios of organic soil conditioners on the growth and soil properties of soybean in coastal salinized farmland.The results showed that the comprehensive analysis of the physiological indicators of salt resistance,such as SOD,CAT,and MDA,showed that T3(lactose peptide 225 kg/ha,lactose peptide:inositol=10:1)and T5(lactose peptide 225 kg/ha,lactose peptide:inositol=20:1)had good improvement effects.Comparing the growth trend in the early and medium stages,T5 treatment showed good growth status,followed by T2(lactose peptide dosage 225 kg/ha,lactose peptide:inositol=5:1).In terms of dry matter accumulation and nutrient uptake,T16(lactose peptide dosage 900 kg/ha,lactose peptide:inositol=15:1),T17(lactose peptide dosage 900 kg/ha,lactose peptide:inositol=20:1)and T2 were better than those of the control treatment.The partial productivity and agronomic efficiency were the highest in T2,which were 1.11,0.87 g/kg,and the compound ratio was 5:1—15:1,which had a better effect on improving soil water-soluble ions.Taken together,the T2 and T3 treatments with a lactose peptide dosage of 225 kg/ha and a lactose peptide and inositol compound ratio of 5:1~10:1 were the best in terms of saving cost and maintaining the improvement effect.

Key words: Soybean, Organic conditioner, Agronomic efficiency, Soil traits, Soil productivity

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Cite this article

GUO Liuming, LU Shuchang. Effects of Organic Conditioning Agents with Different Compound Ratios on Soybean Growth and Soil Traits in Coastal Salinized Farmland[J]. Acta Agriculturae Boreali-Sinica, 2026, 41(4): 185-192. doi: 10.7668/hbnxb.20196463.

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