Pasture deterioration trial

Trial 89NA61 Location: Duranillin In this site we would expect a very large response (40 to 50% ) to phosphorus. History: The site was chosen because of the patchy and poor pasture production. The poor areas tend to have more suckling clover than the good areas. The pasture was legume dominant. Treatments were applied on April 16, 1989

Soil hardpans and plant growth

When farm vehicles travel over moist soils they can create hardpans which can marledly reduce crop and pasture yields. Research at Wongan Hills Research Station has shown that plant growth and nutrient uptake were affected for at least eight years after the original workings caused the hardpan

New block Badgingarra RS late time of seeding.

Trial 89BA33, Location: Badgingarra Based on a 1.5 t/ha potential yield, the strategic treatment was planned to be 120 kg urea/ha 4WAS. However, the crop was poorly established and so NH4NO3 was used in the hope of getting better tillering than would be possible with the slower release urea source. Gambling on equal dollars to urea for 2/3 N, but believe that twice as effective. DAP was used to place nitrogen with the seed in case there was no rain of significance after seeding. This nitrogen (only 5 kg/ha) was probably lost with the rains of 20-28/7/89 (50 mm). Urea (60 kg/ha) was applied at 4WAS with the option to apply more later if yield potential warranted it. Trial 89BA32 1st Top Hand harvest 7/12/989 Trial 89BA32 2nd Top Hand harvest 7/12/89 Trial 89BA32 Tiller Analysis About 20 plants per replicate for each of four replicates were described. The results are expressed per hundred plants. There were on average, about one hundred plants per metre squared

General Phosphorus Trials

The trial programme of past years was considerably reduced in size because of the absence of J.W. Bowden (Research Officer). Further, extensive drought conditions in the W.A. agricultural areas wiped out several trials. INDEX Super x stocking rate trial 66M30. Maintenance P x S trials 65Al, 65C5, 65N5, 69WH15. Residual Value of Phosphorus 75LG26, 77NA4, 78BA7, 79N05, 79JE8 & 9. Times and Methods of Application 80M7, 8OM6, 80WH9, 80MO7

Surface mineral crusts: A priority target in search for life on Mars

Mineral crusts are strong candidates in the search for evidence of life during planetary exploration, and should be an important target for examination in impact craters. Crusts in the Haughton crater readily yield a biological signature

An integrated study of earth resources in the State of California based on Skylab and supporting aircraft data

There are no author-identified significant results in this report

Application of remote sensing to selected problems within the state of California

There are no author-identified signficant results in this report

Use of ERTS-1 data to assess and monitor change in the Southern California environment

There are no author-identified significant results in this report

Application of remote sensing to selected problems within the state of California

There are no author-identified significant results in this report

An integrated study of earth resources in the state of California using remote sensing techniques

There are no author-identified significant results in this report