The effect of long-term fertilization with organic or inorganic fertilizers on mycorrhiza-mediated phosphorus uptake in subterranean clover

2000 ◽  
Vol 32 (5) ◽  
pp. 435-440 ◽  
Author(s):  
E. J. Joner
Keyword(s):  
Phosphorus Uptake ◽  
Subterranean Clover ◽  
Inorganic Fertilizers

Phosphorus Composition and Phosphatase Activities in Soils Affected by Long-Term Application of Pig Manure and Inorganic Fertilizers

2014 ◽  
Vol 45 (14) ◽  
pp. 1866-1876 ◽  
Author(s):  
Guangna Zhang ◽  
Zhenhua Chen ◽  
Aiming Zhang ◽  
Lijun Chen ◽  
Zhijie Wu ◽  
...  
Keyword(s):  
Pig Manure ◽  
Inorganic Fertilizers ◽  
Phosphatase Activities

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

Soil Research ◽  
2000 ◽  
Vol 38 (3) ◽  
pp. 735 ◽  
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.

Cadmium bioavailability in surface soils receiving long-term applications of inorganic fertilizers and pig manure

Geoderma ◽  
2012 ◽  
Vol 173-174 ◽  
pp. 224-230 ◽  
Author(s):  
Longhua Wu ◽  
Changyin Tan ◽  
Ling Liu ◽  
Ping Zhu ◽  
Chang Peng ◽  
...  
Keyword(s):  
Pig Manure ◽  
Surface Soils ◽  
Inorganic Fertilizers ◽  
Cadmium Bioavailability

Nutrient problems in sown pasture on an acid soil. 2. Role of lime and superphosphate

1980 ◽  
Vol 20 (106) ◽  
pp. 568 ◽  
Author(s):  
KD McLachlan
Keyword(s):  
Plant Growth ◽  
Acid Soil ◽  
Phosphorus Uptake ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
Titratable Acidity ◽  
Yield Response ◽  
P 16 ◽  
Exchangeable Magnesium

A study was made of the role of superphosphate and lime on subterranean clover (Trifolium subterraneum) production on an infertile acid soil in pot culture. Both fertilizers increased the exchangeable calcium in this deficient soil. Lime and superphosphate were involved in nodulation of the clover plants. There was no evidence of the direct involvement of either of them in the nitrogen fixation process, but they did increase nitrogen uptake by the plants. Once the legume functioned adequately, full expression of the yield response to phosphorus on this deficient soil followed. Most efficient phosphorus use occurred at the lime 1255, superphosphate 2000 kg ha-1 level (lime 1/2, P 16). Heavy lime dressing reduced exchangeable magnesium and the phosphorus available to the plant. Aluminium and pH were involved in the effects observed. Lime reduced CaCl2-extractable aluminium and the titratable acidity in the soil. Phosphate increased the CaCl2-extractable aluminium and apparently reduced the titratable aluminium. The combined treatments reduced these three attributes and promoted increased plant growth. Increased plant growth was associated with increased aluminium uptake by the plants, which suggests that the real effect of aluminium may have been on the calcium and phosphorus uptake by the plants, rather than on the toxic nature of the element itself.

The role of allelopathy in legume decline in pastures. III. Tolerance of subterranean clover lines to the allelopathic compounds released from Phalaris residues

1995 ◽  
Vol 46 (5) ◽  
pp. 1039 ◽  
Author(s):  
JH Leigh ◽  
DM Halsall ◽  
WJ Muller ◽  
RN Oram ◽  
JP Edlington ◽  
...  
Keyword(s):  
Performance Index ◽  
Root Length ◽  
Mediterranean Region ◽  
Cold Water ◽  
Subterranean Clover ◽  
Distilled Water ◽  
Trifolium Subterraneam ◽  
Allelopathic Compounds

The tolerance of 126 lines of subterranean clover (Trifolium subterraneam L.) to allelochemicals released in cold water leachate from dry herbage of phalaris (Phalaris aquatica L. cv. Australian) was examined and compared. The lines were 112 accessions from grassy associations in the Mediterranean region and 14 Australian cultivars. Measures of germination, radicle length, nodulation and root length in seedlings exposed to three concentrations of extract relative to those obtained from seedlings exposed to distilled water only were obtained. A performance index for each line was derived from these measures. Large differences between lines for these four parameters were evident. On the basis of these comparisons, scope exists to select and recommend lines of subclover which are tolerant to these allelochemicals and thus are capable of higher production and greater persistence in long-term perennial phalaris pastures.

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