Abstract
The use of mineral fertilizers in lettuce is an agricultural practice that brings satisfactory results, however, one must know the optimal dose according to each soil type and its fertility. Thus, the objective was to evaluate the influence of phosphorus doses on the production of lettuce ‘Vera’, in soil with low phosphorus content (14 mg dm -3 ). The experiment was conducted from September 3 to October 18, 2011. The experimental design was randomized blocks, with six treatments (0, 50, 100, 200, 300 and 400 kg ha -1 P 2 O 5 ) and four replications. The P content in the soil and leaf showed quadratic adjustments and increased with P supply up to 320 and 205 kg ha -1 P 2 O 5 , respectively. The fresh mass of shoots and dry mass of shoots and P accumulation also showed quadratic adjustment. The highest fresh mass of shoots and dry mass of shoots were obtained with doses of 283 and 292 kg ha -1 of P 2 O 5 , respectively. The accumulation of P for the lettuce with a dose that maximized fresh mass of shoots was 127 mg plant -1 , or 8.8 kg ha -1 P, or 20 kg ha -1 P 2 O 5 .
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.