Migration of Chlorine in Plant-Soil-Leaching System and Its Effects on the Yield and Fruit Quality of Sweet Orange.

ABSTRACT: Chlorine (Cl) is indispensable for the growth of plants. While rarely systematic reports are available for the effect of Cl-containing fertilizers on citrus production. This study aimed to investigate the impacts of various Cl-containing fertilizers on the nutrients in the leaves, the yield and quality of sweet orange, and the Cl migration in the plant-soil-leaching system. A 5-year field experiment (2016-2020) with five Cl treatments (0, 75, 150, 450, and 900 kg ha^-1), and soil core lysimeter test with five Cl levels (0, 150, 225, 300, and 450 kg ha^-1) were carried out. The results showed that 77.0% of Cl leached into above 60 cm deeper soil layer, with calcium as the main accompanying ions, resulting in less Cl being absorbed by the citrus plants. The content of Cl

SUBMITTER: Liu X 

PROVIDER: S-EPMC8542884 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature