Mobilization of soil phosphorus and enhancement of canola yield and phosphorus uptake by Ceriporia lacerata HG2011

Aim: To investigate efficient utilization of soil phosphorus for peanut nutrition through integration of management practices in medium black clay soils of Saurashtra region in Gujarat. Methodology: Soil phosphorus availability and uptake by peanut plants were assessed at five plant growth stages under six different management practices in Kharif season. The availability of soil P was estimated by Olsen P and Resin P extraction methods. The biomass production and phosphorus uptake at each growth stages were observed in order to draw the relationship between these parameters.? Results: The management practices like raised bed with polythene mulch, integrated and organic nutrient management was consistently found promising for enhanced availability and uptake of soil phosphorus under peanut cultivation. The Olsen P decreased with plant growth under all the management options, except organic and integrated nutrient management practices.? In contrary, the resin P generally increased with plant growth, especially under inorganic and organic nutrient management and raised bed with polythene mulch practices. Irrespective of growth stages, the phosphorus uptake by peanut plants was significantly and strongly correlated with biomass production (r=0.85, p<0.01) and Olsen P (r=0.41, P<0.05).? Interpretation: The results indicate that phosphorus requirement of peanut plants can be efficiently met by integrating land and nutrient management practices in these medium black clay soils.

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THE INFLUENCE OF VARIETY, SOIL TEMPERATURE, AND PHOSPHORUS FERTILIZER ON YIELD AND PHOSPHORUS UPTAKE BY ALFALFA

Canadian Journal of Plant Science ◽

10.4141/cjps63-066 ◽

1963 ◽

Vol 43 (3) ◽

pp. 355-360 ◽

Cited By ~ 7

Author(s):

M. Levesque ◽

J. W. Ketcheson

Keyword(s):

Soil Temperature ◽

Dry Matter ◽

Phosphorus Content ◽

Soil Phosphorus ◽

Phosphorus Uptake ◽

Growth Period ◽

Yield Potential ◽

Phosphorus Fertilization ◽

Maximum Value ◽

Phosphorus Application

Du Puits and Ladak varieties of alfalfa were grown for 10 weeks in the greenhouse on soil-sand media controlled at temperatures of 10°, 18°, and 26 °C. P32-tagged superphosphate was applied at rates of 10 and 80 p.p.m. phosphorus, respectively. Dry matter yields and phosphorus content of the tissue was determined at the end of the growth period. Increasing soil temperature from 10° to 26 °C. caused corresponding increases in total phosphorus uptake as a result of an increase in dry matter yields as well as an increase in the percentage of phosphorus in the plant tissue. Ladak exhibited the higher yield potential although Du Puits was less affected by low soil temperature conditions and appeared capable of making better use of soil phosphorus. With the higher phosphorus application, the root-top ratio for Du Puits was greater than that for Ladak, and the maximum value for this ratio occurred at 18 °C. for each variety. P32 activity measured in the tissue indicated that soil temperature was critical in terms of phosphorus fertilization in the 4- and 6-week stages of growth.

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Comparison of single superphosphate and superphosphate coated with bauxite residue for subterranean clover production on phosphorus-leaching soils

Soil Research ◽

10.1071/sr99070 ◽

2000 ◽

Vol 38 (3) ◽

pp. 735 ◽

Cited By ~ 9

Author(s):

Robert Summers ◽

Martin Clarke ◽

Tim Pope ◽

Tim O'Dea

Keyword(s):

Field Experiment ◽

Soil Phosphorus ◽

Bauxite Residue ◽

Phosphorus Uptake ◽

Subterranean Clover ◽

Trifolium Subterraneum ◽

Single Superphosphate ◽

Glasshouse Experiment ◽

The Impact ◽

Coated Granules

Bauxite residue from alumina refining was used to coat granules of single superphosphate to reduce the leaching of phosphorus in coarse, sandy soils for pastures in high rainfall areas of south-western Australia (>800 mm annual average). The impact of coating the superphosphate on the leaching of phosphorus was measured in a glasshouse experiment and the effectiveness of the fertiliser using dry herbage yield of subterranean clover (Trifolium subterraneum) was measured in a field experiment. The glasshouse experiment measured the effect of coating the superphosphate with bauxite residue at 0, 5, 10, 15, 20, 25, 30, 35, and 40% by weight. A coating of 25% (by weight) was chosen for the field experiment. In the glasshouse experiment, the coated granules were applied to columns of soil, where subterranean clover was grown under leaching conditions. A coating of 30%, by weight, reduced leaching of single superphosphate by about half. Increasing the coating of bauxite residue also increased the phosphorus uptake and increased the plant growth. In the field trial, the effectiveness of single superphosphate with a bauxite residue coating of 25% by weight was increased on average by 100% in Year 1, 303% in Year 2, and 158% in Year 3, relative to freshly applied single superphosphate. The bauxite residue coating also increased the phosphorus content of the herbage in a similar manner to the increases in yield. Limited soil phosphorus tests showed only minor increases in the residues of phosphorus where the superphosphate had been coated with bauxite residue.

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Effects of primary tillage and soil amendment practices on pearl millet yield and nutrient uptake in the Sahel of West Africa

Experimental Agriculture ◽

10.1017/s0014479799354053 ◽

1999 ◽

Vol 35 (4) ◽

pp. 437-448 ◽

Cited By ~ 11

Author(s):

F. N. IKPE ◽

J. M. POWELL ◽

N. O. ISIRIMAH ◽

T. A. T. WAHUA ◽

E. M. NGODIGHA

Keyword(s):

Soil Amendment ◽

Soil Phosphorus ◽

Phosphorus Uptake ◽

Nitrogen Levels ◽

Tillage Practices ◽

No Till ◽

Primary Tillage ◽

Repeated Applications ◽

Phosphorus And Potassium ◽

Millet Yield

The main objective of this study was to determine the best soil amendment and tillage practices for sustainable millet yield and grain and stover quality. The treatments included tillage practices (immediate-, late- and no-till) and soil amendments (sheep manure plus urine, manure, millet stover (stalks, leaf blades and leaf sheaths) and millet stover ash) in factorial combinations with fertilizer nitrogen levels of 0, 15 and 30 kg ha−1 plus controls. Results showed that (i) higher yields were obtained in tilled plots than in no-till plots; (ii) tillage timing may not be a significant yield determining factor; (iii) the application of animal urine resulted in significantly higher yield and greater nitrogen, phosphorus and potassium uptake than the application either of manure alone or of millet stover. Urine application (ruminant urine contains virtually no phosphorus), which elevates soil pH especially during the first week after application, may have resulted in the dissolution of phosphorus from the aluminium–iron complexes of kaolinitic clays. This is corroborated by the significantly higher phosphorus uptake from the manure-plus-urine plots than from plots amended with either manure alone or millet stover. Long-term implications of ‘mining’ soil phosphorus with repeated applications of animal urine in these fragile ecosystems remains unclear.

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Seasonal and fertilizer effects on the organic cycle and microbial biomass in a hill country soil under pasture

Soil Research ◽

10.1071/sr9920383 ◽

1992 ◽

Vol 30 (3) ◽

pp. 383 ◽

Cited By ~ 43

Author(s):

KW Perrott ◽

SU Sarathchandra ◽

BW Dow

Keyword(s):

Microbial Biomass ◽

Sodium Bicarbonate ◽

Organic Phosphorus ◽

Soil Phosphorus ◽

Phosphorus Uptake ◽

Phosphate Fertilizer ◽

Inorganic Phosphorus ◽

Pasture Production ◽

Hill Country ◽

Soil Microbial

A two year investigation of soil phosphorus and the soil organic cycle was carried out on a typical hill country site in the North Island, New Zealand. This included investigation of changes in soil phosphorus, as well as seasonal and fertilizer (superphosphate) effects on soil microbial phosphorus and sulfur, sodium bicarbonate extractable phosphorus and calcium chloride extractable sulfur. No net utilization of soil organic phosphorus occurred when application of phosphate fertilizer was withheld. On the contrary, accumulation of organic phosphorus was found in both fertilized and unfertilized plots. Immobilization of inorganic phosphorus into organic forms appeared to be a significant factor in fertilizer phosphorus requirements at this site. It was also a significant cause of the decline in the soil phosphorus status when no fertilizer was applied. Despite declining pasture production, there were no effects of withholding superphosphate on the soil biological cycle as measured by soil microbial phosphorus and sulfur, total organic phosphorus and sodium bicarbonate extractable organic phosphorus. However, seasonal variations occurred indicating storage and release of phosphorus by the soil organic matter and microbial biomass. Release of phosphorus occurred during periods of rapid pasture growth and could account for phosphorus uptake by the pasture at those times.

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Determination of available soil phosphorus by chemical methods

Agricultural and Food Science ◽

10.23986/afsci.71982 ◽

1978 ◽

Vol 50 (4) ◽

pp. 305-316 ◽

Cited By ~ 1

Author(s):

Erkki Aura

Keyword(s):

Anion Exchange ◽

Exchange Resin ◽

Anion Exchange Resin ◽

Soil Phosphorus ◽

Phosphorus Uptake ◽

Ammonium Fluoride ◽

Acetate Solution ◽

Phosphorus Status ◽

Mineral Soils ◽

Resin Method

Phosphorus uptake by oats in pot experiments was compared with phosphorus test values obtained for experimental soils. Phosphorus was extracted from the soil using acid ammonium acetate solution, Bray 1 solution, Olsen solution, ammonium fluoride, distilled water and anion exchange resin. Intensity values were determined by equilibrating the soils with 0.01 M CaCl2 solution. Soil samples were collected from 30 mineral soils. The best test for phosphorus status proved to be the anion exchange resin method. Good results were also obtained with simple water extraction. An advantage of the water and resin method is that the microstructure of the soil is not substantially changed when using these methods. An intensity measurement was not in itself sufficient for analysis of the phosphorus status, since the intensity drops rapidly when soil releases phosphorus.

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Carbon and Phosphorus Assimilation and Deployment in Eucalyptus pilularis Smith Seedlings With Special Reference to the Role of the Cotyledons

Australian Journal of Botany ◽

10.1071/bt9850485 ◽

1985 ◽

Vol 33 (5) ◽

pp. 485 ◽

Cited By ~ 10

Author(s):

DR Mulligan ◽

JW Patrick

Keyword(s):

Photosynthetic Capacity ◽

Soil Phosphorus ◽

Phosphorus Uptake ◽

Relative Growth ◽

Normal Seedling ◽

Seed Reserves ◽

Eucalyptus Pilularis ◽

Available Soil Phosphorus ◽

Essential Contribution

Early growth of glasshouse-raised Eucalyptus pilularis Smith seedlings in a phosphorus-deficient soil was divided into a cotyledonary and a post-cotyledonary phase. The delineation was made on the basis of cotyledon excision experiments which ascertained the stage (between 32 and 39 days from sowing) beyond which the cotyledons no longer made an essential contribution to normal seedling development. The relative growth rate of the E. pilularis seedlings during the cotyledonary phase was at least comparable with that of many fertilized tree species. The expression of this characteristic in such a phosphorus-deficient soil was considered a consequence of the contributions of both carbon and phosphorus from the cotyledons. Since the seed reserves of both elements were low, these organs were established as major sources largely through immediate post-emergence events. The cotyledons rapidly developed photosynthetic capacity and were the dominant sink for assimilated phosphorus during the week following emergence. Phosphorus gains by the seedlings over this period (up to 16 days from sowing) doubled the seed reserve level of phosphorus (7.5 μg). Beyond this time, however, due to the rapid depletion of readily available soil phosphorus, phosphorus uptake abruptly declined. Concurrent with this decline, the cotyledons switched from being net importers to net exporters of phosphorus. Transfers of seedlings between high and zero phosphorus conditions demonstrated that this switch in cotyledonary role was induced when demand for phosphorus by other sinks could not be met by the current rate of phosphorus assimilation.

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