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Behaviour of sunflower in relation to soil acidity

Bragantia 44(1): 41-48

Behaviour of sunflower in relation to soil acidity

In a rotation trial in 1981-82 at Mococa some plots of sunflower Anhandy showed poor germination, reduced growth, leaf chlorosis, curved main roots and fewer amd thicker secondary roots. Seed yield, plant height and capitulum diam. were correlated positively and linearly with soil pH and base saturation.

Accession: 001535592

Related references

Mehlich, A.; Bowling, S.S.; Hatfield, A.L., 1976: Buffer ph acidity in relation to nature of soil acidity and expression of lime requirement. The purpose of this investigation was to evaluate the relationship between forms of soil acidity and certain buffer pH (BpH) methods for predicting the amount of lime required to obtain a given pH. Exchangeable acidity (ACe) in 114 acid soils from...

Truog, E.; Meacham, M.R., 1919: Soil acidity: II. its relation to the acidity of the plant juice. Soil Science 7(6): 469-474

Poisson, J.; Cahagnier, B.; Richard Molard, D., 1980: Behaviour of rapeseeds and sunflower seeds stored in airtight conditions. Evolution of microflora and fat acidity. In rape seeds at 12-18% m.c. and sunflower seeds at 7-18% m.c. stored at 22 deg C, seed preservation was higher and in high m.c. seeds microbial fermentation in seeds stored in airtight containers was better than in seeds stored in the open.

Ungaro M.R.G.; Quaggio J.A.; Gallo P.B.; Dechen S.C.F.; Lombardi Neto F.; Castro O.M.D., 1985: Sunflower helianthus annuus response to soil acidity. A crop rotation experiment involving corn, soybean, sunflower, and green manure was carried out in a Red-Yellow Podzolic soil. In some of the 12 plots with sunflower the seed germination was poor and the plants showed reduced growth, with leaf chl...

Petcu, E.; Georgescu, F.; Arsintescu, A.; Stanciu, D., 2001: The effect of hydric stress and soil acidity on sunflower seedlings. Sunflower plants were grown in near-neutral or acidic soil and subjected to 70 or 40% total soil water capacity in greenhouse experiments. Decrease in leaf area, root volume and dry matter accumulation was recorded in sunflower hybrids grown under...

Arsova, A., 1980: Effect of neutralizing soil acidity with high-basic phosphates on yield of sunflower, maize and lucerne. In pot trials, response of sunflower, maize and lucerne to neutralization of strongly and weakly acid soils by the addition of Ca3(PO4)2 and/or CaCO3 is described. Yields of all crops were markedly increased in fully neutralized soils.

Hendrickson, B.H., 1924: Soil acidity in relation to soil type groups, in nacogdoches county, texas. Soil Science 18(5): 383-386

Matula, J.; Janovec, J.; Pavelkova, J.; Pribyl, A.; Tomaskova, J.; Zbiral, V., 1988: Problems of liming and soil acidity in relation to calcium resources in soil. Adequate calcium status in soil is currently considered to be 60-80%. This range permits the definition of the suitable pH range for the particular soil.

Anonymous, 1926: On the question of exchange acidity in soils and the relation between titration acidity and actual acidity. Soil Science 22(3): 215

Hissink, David J., 1928: Relation between soil acidity and decomposition of soil organic matter. Samples of soil were taken from a field experiment under various fertilizer treatments and from limed and unlimed plots on another field. pH, percentage of organic matter, CaO, N and P2O5 in these soils were determined. The CaO-(humus), N-(humus),...