You are here

nitrogen input

Catalogue: GRDC Updates
Have a well thought out plan in regard to nitrogen application and amend it as the season unfolds... With the ability to measure starting soil moisture and nitrogen levels and a variety of ways in which we can apply nitrogen to a crop, planning for nitrogen input can start before a seed has hit the ground... A crop should be assessed for disease or other nutrient deficiencies prior to spreading additional nitrogen...
Related categories:
Catalogue: Ground Cover
Chasing sandy soil profitability without chasing risk.. Research supported by the GRDC and run by CSIRO with Mallee Sustainable Farming (MSF) indicates that the timing and distribution of nitrogen are crucial if profitability in these soil types is to be increased without increased risk... The fertiliser trial consists of five rates of nitrogen applied as urea at seeding (0, 10, 20, 40 and 80kg N/ha) and four rates of phosphorus applied as triple superphosphate (0, 5, 10 and 20kg P/ha) on each of the three soil types (dune - deep sand, mid-slope sand over clay loam and swale/flat - clay loam over clay)...
Related categories:
Catalogue: GRDC Updates
Using Crop Sensors In the US, Europe and Australia there is increasing interest in using crop sensors mounted on farm machinery (boom mounted) to monitor crop canopy performance... Influence of nitrogen timing and rate on yield t/ha - Lubeck cv Annuello 2007 NDVI correlation with Green Area Index (GAI) There are, as outlined below, a number of issues that would need to be clarified before NDVI readings could be used to calculate nitrogen inputs for cereal crops... Strength of correlation between growth stage and NDVI readings recorded with the Greenseeker assessed at the Inverleigh SFS trial site, Southern Victoria in 2007 - cv Mackellar...
Related categories:
Catalogue: GRDC Updates
LEY PASTURES - THEIR FIT IN CROPPING SYSTEMS.. The pastures need to be removed earlier (e.g. June) to allow sufficient fallow length to reduce any yield penalty in subsequent crops (Fig. 4)... Growth and livestock prices fluctuate from year to year we also explore how sensitive returns are to these changes (Table 10)...
Related categories:
Catalogue: Ground Cover
National Agricultural Nitrous Oxide Research Program (NANORP) research in WA was all about seeing if increasing SOC created an N 2 O problem... For WA grower Stuart McAlpine, the findings of NANORP trials looking at tilled sandy soils on his 5000ha property at Buntine showed yields were unaffected by nitrogen fertiliser applications, leading him to explore the potential for increased soil organic carbon to reduce applied nitrogen costs without resulting in yield penalties... NANORP research has found that sandy soils emit N 2 O in fallow periods, and Joe says this knowledge supports their on-farm practice of planting opportunity summer-grazing crops such as millet, sorghum and perennial ryegrass to improve SOC and provide feed for sheep...
Related categories:

Associated key phrases