Breeding, Moult and Food of the Squatter Pigeon in North-Eastern Queensland.

1976 ◽  
Vol 3 (1) ◽  
pp. 45 ◽  
Author(s):  
FHJ Crome

Squatter pigeons (Geophaps scripta) shot in north-eastern Queensland were mainly graminivorous. The most important seed eaten was of Stylosanthes humilis, a plant of improved pasture.


1971 ◽  
Vol 11 (50) ◽  
pp. 336 ◽  
Author(s):  
BJ Crack

Glasshouse experiments using the subtractive technique were conducted on 15 neutral red duplex soils from north-eastern Queensland. On two of the soils factorial experiments were conducted to obtain information on nutrient interactions. The legumes Phaseolus lathyroides and Stylosanthes humilis were used as test plants. All soils were deficient in phosphorus, sulphur, and molybdenum, although the magnitude of the various deficiencies often differed between soils. Yields of plants were well correlated with phosphorus extracted from the soils by 0.01 N.H,SO, and by 0.5 M. Na HCO3. Soil tests used were unsatisfactory indices of sulphur deficiency. A possible zinc deficiency was indicated.



1970 ◽  
Vol 10 (44) ◽  
pp. 342 ◽  
Author(s):  
RK Jones ◽  
BJ Crack

Glasshouse experiments using the subtractive technique were undertaken to assess the nutrient status of a number of solodic soils in north-eastern Queensland. On two of the soils factorial experiments were conducted to obtain more information on nutrient interactions. The legumes, Phaseolus /athyroides and Stylosanthes humilis, were used as test plants. Omission of phosphorus severely depressed yield on all soils. This deficiency was usually corrected by applications of superphosphate equivalent to 670 lb an acre. Omission of sulphur and molybdenum also depressed yields in all except one soil. Soil potassium values were low on several soils and the omission of potassium from these gave lower yields. In the factorial experiments the lime, sulphur, and molybdenum main effects and interactions were generally significant. Lime appeared to be having the dual effect of enhancing the availability from the soil of both sulphur and molybdenum. There was some evidence of slight zinc deficiency on several soils and further investigation is required on this aspect.



1975 ◽  
Vol 15 (76) ◽  
pp. 689
Author(s):  
ME Probert

The C horizon phosphorus in neutral red duplex soils derived from granodiorite is shown by electron microprobe analysis to be present as coarse grains of apatite. Glasshouse experiments failed to show any contribution from this phosphorus to the nutrition of the test crops (Townsville stylo Stylosanthes humilis and green panic Panicum maximum). Since this phosphorus is soluble in 0.01 N H2SO4, this extractant grossly overestimated the available phosphorus status whereas extraction with 0.5 M NaHCO3 indicated the non-availability of the C horizon phosphorus in these soils.



1972 ◽  
Vol 12 (56) ◽  
pp. 274 ◽  
Author(s):  
BJ Crack

The effect of the legume Townsville stylo (Stylosanthes humilis) on soil nitrogen status was studied under mown plots with different conditions of establishment and fertilizer application on a solodic soil in north- east Queensland. Increase in soil total nitrogen 0-7.5 cm of 180 kg N per ha and total nitrogen accession (plant and soil) of 460 kg N per ha was measured over a four year period where the legume was sown into existing spear grass and fertilized with superphosphate at 375 kg per ha per year. Soil nitrogen increases did not occur until the pasture was legume dominant and main increases took place where superphosphate was applied. Under these conditions there was also a dry season accumulation of soil nitrate nitrogen.





1942 ◽  
Vol 21 (8) ◽  
pp. 315
Author(s):  
Bowen ◽  
Vickery ◽  
Buchanan ◽  
Swallow ◽  
Perks ◽  
...  




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