Effect of fluorine and phosphorus on the yield and chemical composition of rice (Oryza sativa) grown in soils of two sodicities

Journal Article · Mon Jan 01 04:00:00 EST 1979 · Soil Sci.; (United States)

DOI:https://doi.org/10.1097/00010694-197902000-00005· OSTI ID:5443758

Singh, A; Chhabra, R; Arrol, I P

The effect of five levels of fluorine (0, 25, 50, 100, and 200 ppm F as sodium fluoride) and four levels of phosphorus (0, 25, 50, 100 ppm P as KH/sub 2/PO/sub 4/) on the yield and chemical composition of rice (Oryza sativa) grown on soils of two sodicities, ESP 30 and 70, was studied in a thrice replicated pot experiment. Increasing levels of fluorine, above 50 ppm F, decreased the dry matter yield in the early growth stages and grain yield at maturity, especially at ESP 70. Application of phosphorus increased the plant growth and grain yield. Both phosphorus and fluorine interacted significantly in affecting the dry matter yield and plant composition. The adverse effect of added fluorine was nullified by greater application of phosphorus. Fluorine uptake by plants was greater in high than in low ESP soil, mainly because of the higher solubility of added F at high ESP. Addition of P decreased the F content of the plant and thereby helped in reducing the toxic effect of F on growth. Fluorine increased the Na and decreased the Ca, Mg, K, and P contents of the plants. Application of P decreased Na and F and increased the Ca, Mg, K, and P contents of the plants. Increased ESP decreased the plant growth grain yield, Ca, Mg, K, and P, but increased the Na and F content of the plants. 18 references, 5 figures, 7 tables.

• Research Organization: Central Soil Salinity Research Institute, Karnal, India
• OSTI ID: 5443758
• Journal Information: Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 127:2; ISSN SOSCA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALI METAL COMPOUNDS
CEREALS
CHEMICAL COMPOSITION
DATA
ELEMENTS
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
GRASS
GROWTH
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INHIBITION
LAND POLLUTION
NONMETALS
NUMERICAL DATA
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS
PHOSPHORUS COMPOUNDS
PLANT GROWTH
PLANTS
POLLUTION
POTASSIUM COMPOUNDS
POTASSIUM PHOSPHATES
PRODUCTIVITY
RICE
SODIUM COMPOUNDS
SODIUM FLUORIDES
SOILS
TOXICITY