Abstract
The uptake of mevinphos and phosphamidon by bean plants was altered when the supply levels of phosphorus, potassium, magnesium, nitrogen, sulphur, and calcium were varied. The influence of the uptake on the acaricidal effectiveness and the phytotoxic action were studied. Increased effectiveness of mevinphos and phosphamidon were associated with increased supply levels of phosphorus, potassium, and magnesium. Decreased effectiveness of mevinphos was associated with increased supply levels of nitrogen and sulphur, but effectiveness of phosphamidon was increased at increased supply levels of these 2 minerals. Greater effectiveness of mevinphos was associated with increased supply levels of calcium. In general as the acaricide-absorbing capacity of the plants increased, the acaricidal effectiveness of plants also increased. The phytotoxicity of mevinphos and phosphamidon was accentuated in the plants receiving low-nitrogen, high-phosphorus, potassium-deficient, low-calcium, high-magnesium, or sulphur-deficient treatments. The low concentration of mevinphos and phosphamidon increased the fresh and dry weights of the plants under conditions of low-phosphorus supply.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
