
Jay Howes
Dr Jay Howes is Technical Specialist - Soil Science at PGG Wrightson in New Zealand, a Massey University PhD soil scientist who appears on the Blue Shed Diary podcast.
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Sep 21, 2026
Tech Talk: The heavyweight champion of pasture systems - Clover with Dr Jay Howes
6:57
7:10
7:22
7:48

Jay HowesGUEST
Yes, so legumes are slightly different to sort of non-legumes, so all plants need molybdenum.

Jay HowesGUEST
They use it for, the rhizoma itself uses it to fix N2 gas out of the atmosphere, and they also use it in metabolic processes to form proteins inside their body.

Jay HowesGUEST
And, you know, just as an aside, If a plant needs, let's just say a 10 ton crop of pasture needs 450 kilos of nitrogen, as we said before, that same crop may need less than probably three milligrams of molybdenum.

Jay HowesGUEST
So we're talking, you know, out of the 16 essential plants, essential nutrients that a plant needs to get out of the soil, nitrogen is the highest and molybdenum is the lowest, but can have a detrimental effect on definitely legume growth if it's deficient.
