Effects of intercropping with post-grafting generation of Solanum photeinocarpum on phosphorus and potassium nutrient absorption of loquat seedlings under cadmium stress

doi:10.14088/j.cnki.issn0439-8114.2019.11.020

Abstract

Abstract: To study the effects of intercropping with post-grafting generation of Solanum photeinocarpum on nutrients absorption of loquat[Eriobotrya japonica（Thumb.） Lindl.] under cadmium stress, four post-grafting generations of S. photeinocarpum were intercropped with loquat seedlings（Dawuxing and Chuanzao） in cadmium contaminated soil, and the pot experiment was carried out to study the effects of intercropping on phosphorus and potassium nutrients absorption of two plant species. Intercropping with post-grafting generation of S. photeinocarpum on phosphorus and potassium nutrient absorption of loquat seedling showed that, compared with the order was monoculture, intercropping could significantly improve the phosphorus and potassium nutrient uptake of loquat seedling, and total phosphorus contents increased by 8.65%~96.49% and 9.65%~97.37%, total potassium contents increased by 5.74%~45.92% and 9.68%~52.42%. Post-grafting generation of S. photeinocarpum on total phosphorus and total potassium contents have been improved to different extent; Compared with the order was monoculture, intercropping could significantly improve the soil available phosphorus content, but intercropping with post-grafting generation of S. photeinocarpum on soil available phosphorus content of Dawuxing loquat seedling lower than the Chuanzao loquat seedling; Intercropping could also significantly improve the soil available potassium content, and intercropping with post-grafting generation of S. photeinocarpum on soil available potassium content of Dawuxing loquat seedling was lower than the Chuanzao loquat seedling; Intercropping could also improve the soil invertase activity, urease activity and catalase activity. So the post-grafting generation of S. photeinocarpum intercropping with loquat seedlings was a reasonable collocation method under cadmium stress, which could promote the two kinds of plants absorption of nourishment.

Key words: Solanum photeinocarpum, post-grafting generation, loquat[Eriobotrya japonica （Thumb.） Lindl.], intercropping, cadmium stress

CLC Number:

SHI Jun, XIANG Zu-fen, LIU Ding-you, HUANG Ting-you, LIAO Ming-an, LIN Li-jin. Effects of intercropping with post-grafting generation of Solanum photeinocarpum on phosphorus and potassium nutrient absorption of loquat seedlings under cadmium stress[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(11): 87-90.

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