You are here

gypsum

Categorised under:

Catalogue: Ground Cover
By Kellie Penfold Gypsum and urea, as a traditional fertiliser combination for growing canola, is coming under scrutiny with a research project's early findings suggesting ammonium sulfate may be more beneficial... Traditionally growers use low rates of gypsum (calcium sulfate) applied before sowing, and then meet the demand for nitrogen (N) with a combination of at-sowing and top-dressed urea... At Nurrabiel, neither urea nor gypsum alone or in combination gave a significant canola yield response, but when N and S were supplied together as ammonium sulfate yields increased by almost 30 per cent (1.83 tonnes per hectare urea/gypsum compared with 2.36t/ha ammonium sulfate)...
Related categories:
Catalogue: GRDC Updates (West)
P4/S9 and P2/S4 were the two most profitable sequences and, overall, the 'maximum profit - P4' philosophy had the highest mean gross margin... It is logical that those growers that have chosen to have no livestock will have no interest in trialling grazing crops... Overall, the data has indicated that for the biserrula inoculant all of the carrier's have difficulties in carrying enough live rhizobia numbers to adequately nodulate the legume hosts after 3-4 months of dry, hot soil...
Related categories:
Concepts:

Pages

Associated key phrases