Results 301 to 310 of about 511,075 (355)
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EFFECTS OF pH AND PHOSPHORUS RATES ON SOIL-SOLUTION PHOSPHORUS AND PHOSPHORUS AVAILABILITY
Soil Science, 1985Results from short-term, absorption experiments with roots in Ca-free culture solutions have led to the concept that phosphorus is absorbed largely or exclusively as the monovalent ion, H2PO4-.
J. F. ADAMS, J. W. ODOM
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Prediction of phosphorus availability from 88 Ontario soils using five phosphorus soil tests
Communications in Soil Science and Plant Analysis, 1990Abstract Five chemical soil‐P extractants were compared. Surface samples from 88 Ontario soils were collected and used to grow corn (Zea mays L.) in a greenhouse. Soil pH ranged from 5.0 to 7.6 and organic matter from 60 to 575 g kg‐1. The amount of P extracted by the five extractants was used to predict P availability to corn plants.
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Evaluation of phosphorus availability from three phosphorus sources in Nigerian soils
Communications in Soil Science and Plant Analysis, 1998Abstract In an attempt to search for a cheaper source of phosphorus (P), both for direct application and industrial use, three P fertilizers were evaluated in incubation and greenhouse studies. Indigenous Sokoto rock phosphate (SRP) imported, Togo rock phosphate (TRP), and conventional single superphosphate (SSP) were applied on three soil types namely
J. A. Adediran +3 more
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Availability of Residual Phosphorus in Manured Soils
Soil Science Society of America Journal, 1996Abstract In many areas with confined animal operations, continual manure application has increased soil P above amounts sufficient for optimum crop yields. In these areas, it is of economic and environmental importance to determine how long high‐P soils will remain above crop sufficiency and identify soils where P
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Phosphorus Behavior in Flooded‐Drained Soils. III. Phosphorus Desorption and Availability
Soil Science Society of America Journal, 1989Abstract Four California soils that showed wide variability in soil properties and P sorptivity under flooded‐drained (FD) conditions were selected for this study. The soils were flooded for 0 to 90 d at two levels of organic matter (OM, 0 and 10 g kg −1 ) and two ...
R. N. Sah, D. S. Mikkelsen, A. A. Hafez
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Soil Test Phosphorus Availability as Affected by Time after Phosphorus Fertilization
Soil Science Society of America Journal, 1992Abstract The availability of fertilizer P in the soil decreases with time after fertilization. Routine soil tests or other estimates of plant‐available P should accurately reflect that change. The objective of this study was to determine the effect of the time fertilizer P is in contact with soil on the ability of
A. O. Esilaba, B. Eghball, D. H. Sander
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Availability and Extractability of Phosphorus from Soils Having High Residual Phosphorus
Soil Science Society of America Journal, 1982Abstract Surface soil materials from the 0‐ to 15‐cm depth of 12 sites were cropped in the greenhouse to determine quantities of phosphorus (P) removed in harvested forage and to correlate chemical soil tests with P removal by crops.
A. Y. Adepoju +2 more
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Soil phosphorus sorption and availability as a function of high phosphorus fertilizer additions
Communications in Soil Science and Plant Analysis, 1995Abstract After a 3‐months equilibration of soil with phosphorus (P) (up to four times the respective P sorption capacity), equilibrium P concentration (EPCo), standard P requirement (SPR), P sorption index (SI), and P availability by Bray I, Olsen, water and iron‐oxide paper strip methods were determined on three soils of the Latium region of Italy ...
R. Indiati +5 more
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High Soil Available Phosphorus Favors Carbon Metabolism in Cotton Leaves in Pot Trials
Journal of Plant Growth Regulation, 2020Jingran Liu +7 more
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