Effects of soil amendments on soil quality and pepper growth in saline-al-kali soil
ZHANG Junfeng
NIU Chengda
GAN Run
YU Haili
HOU Zuopeng
Abstract：To investigate the effects of different soil amendments on soil properties and growth indices of processing pep-per under mulch drip irrigation,five treatments were established:T1(control,local routime managment),T2(organic fertilizer 400 kg·667 m-2),T3(humic acid 8.5 kg·667 m-2),T4(soil conditioner 10 kg·667 m-2)and T5(lactose peptide 5 kg·667 m-2).By evaluating soil physicochemical properties and pepper growth indicators,cultivation treatments suit-able for the growth of processing pepper in saline-alkali soils were identified.The results demonstrated that the application of organic fertilizer,humic acid,soil conditioner,and lacto-peptide all significantly increased the content of soil organic carbon,alkali-hydrolyzable nitrogen,available phosphorus,and available potassium and promoted the growth of process-ing pepper compared to the control,and the comprehensive effect of lactose peptide treatment was the best.The results of RDA analysis showed that soil fertility could explain 85.88％of the variation of pepper growth traits.Further,the results of Monte Carlo test showed that soil SOC content and pH were the main factors affecting the growth of processed pepper.In summary,lactose peptide treatment can be used as an effective technical solution for processing pepper saline-alkali resistance cultivation.
Keywords：PepperSaline-alkali soil improvementSoil fertilityGrowth traitYield
Publication Date：2025-10-05
Online Publishing Date：2025-11-05(First online date of this platform, not the publication date of the document)
Pages：7( 156-162 )