This festive episode comes out on 25th December 2025, so Happy blooming Christmas listener. If you're anything like me, the morning so far will have been; 1. Put the turkey in the oven around 06.00 hrs; 2. Check round the stock, 3. Get back to the house in time for a late morning snifter, 4. Check how the turkey is doing, 4. Turn the oven on, 5. Explain that Chistmas dinner is running late.

There's some robust swearing in this one listener, including the big swear at around nineteen minutes in. Sorry about that. We know a lot of people don't like the big one, but think it's canonically justified in this case. We'll try to avoid it in the future.

The original recording included my favourite ever Christmas joke, but Michael cut it out and burned the tape. I thought it was funny, but he explained that being funny isn't always enough to avoid being taken off air. We have exchanged Christmas presents. I don't understand why I received a £50 voucher for therapy, but Michael says that me not understanding that there is a problem is "just another symptom". Micheal has only very recently realised why he received a dictionary with the word "canonically" underlined.

As promised, this month we're in Denmark and looking at Nitrogen transfers from legumes into grasses and herbs. Which legumes are good at fixing? Which are good at transfering Nitrogen to neighbouring plants? Which non legumes are good at acquiring the Nitrogen? Only one way to find out the answers listener.

Actually, there is another way. If you just read the paper, you don't have to listen to the chaos and the big swear. Here it is. Pirhofer-Walzl, K., Rasmussen, J., Høgh-Jensen, H., Eriksen, J., Søegaard, K. and Rasmussen, J., 2012. Nitrogen transfer from forage legumes to nine neighbouring plants in a multi-species grassland. Plant and soil, 350(1), pp.71-84. Nitrogen transfer from forage legumes to nine neighbouring plants in a multi-species grassland | Plant and Soil

Unfortunately, once again, it's behind a paywall. Sorry about that. I only realised at the last minute. We are still looking for an open access version and we will post a link if we find one.

This is where we think Karin works now (based on our expertise in internet stalking of scientists). It's Weltacker Berlin and they all look like they are having fun. Weltacker Berlin | Weltacker . Weltacker is a global agroecology demonstration and education organisation (the Berlin site was the first). They are not for profit (which definitely aligns them with our sort of farming). Check it out. Welcome to 2000m2 .

For the real nerds, who like an old reference.

Fred EB, Baldwin IL, McCoy E (1932) Root nodule bacteria and leguminous plants. University of Wisconsin, Studies in Science. ‎Root nodule bacteria and leguminous plants - UWDC - UW-Madison Libraries

And our old mate Frank, FRANK, B. 1889. Ueber die Pilzsymbiose der Leguminosen. Ber. Deut. Bot. Gesell., 7: 332-346, 1889. Ber-Deutschen-Bot-Ges_7_0332-0346.pdf

And proving that scientists absolutely love citing themselves, the earlier work with just three species; Høgh-Jensen, H., 2006. The nitrogen transfer between plants: an important but difficult flux to quantify. Plant and Soil, 282(1), pp.1-5. The Nitrogen Transfer Between Plants: An Important but Difficult Flux to Quantify | Plant and Soil

Sheep / halal statistics.

England and Wales slaughter statistics 25-02-14 Slaughter Sector Survey 2024 (REVISED)

UK sheep slaughter numbers Lamb market outlook | AHDB

Scottish sheep numbers RESAS Agricultural Statistics Hub

Northern Ireland sheep numbers Slaughtering of cattle and sheep since 2001 | Department of Agriculture, Environment and Rural Affairs

Hello listener. How's things?

You'll be relieved to know that this episode is much shorter than the last one and really delivers on the science. Yes, that's right; back by popular demand, this is the second episode of Lab Rat Jazz Club and, this time, we hear about the work of the brilliant Professor Smith (he's the best, Paul loves him).

The main paper; Smith, M.L., 2014. Xxxxx xxx xxxxx xxxx index by xxxx location. PeerJ, 2, p.e338. https://doi.org/10.7717/peerj.338

Find Professor Smith's other work here; https://scholar.google.co.uk/citations?view_op=list_works&hl=en&hl=en&user=lREVIHgAAAAJ

The Berkley paper on pain thresholds; women (not girls) vs men (cited 1,673 times!). This could be behind a paywall, but there's at least an abstract. Berkley, K.J., 1997. Sex differences in pain. Behavioral and brain sciences, 20(3), pp.371-380. https://doi.org/10.1017/S0140525X97221485

The career of our other hero; Justin Schmidt. Starr, C.K., Jacobson, R.S. and Overal, W.L., 2024. Justin Schmidt's originality. Journal of Hymenoptera Research, 97, pp.297-306. https://jhr.pensoft.net/article/121387/

Edith Piaf - Non, Je ne regrette rien

Where to begin listener? Well, you could begin about 45 minutes into this unfeasibly long episode, because that's how long it takes to get to this fascinating research paper and it's 45 minutes of your life you will never get back.

Salomon, M.J., Demarmels, R., Watts-Williams, S.J., McLaughlin, M.J., Kafle, A., Ketelsen, C., Soupir, A., Bücking, H., Cavagnaro, T.R. and van der Heijden, M.G., 2022. Global evaluation of commercial arbuscular mycorrhizal inoculants under greenhouse and field conditions. Applied Soil Ecology, 169, p.104225. https://www.sciencedirect.com/science/article/pii/S0929139321003486

Apologies listener, you will only find the abstract and some section snippets, because the full paper is behind a paywall. Michael just tried to make me feel better by saying, "Surely no-one actually reads them, do they?"

This is the review paper that sets off all the nonsense in the first 45 minutes; the one with the peloton. It's got an abstract.

Genre, A., Lanfranco, L., Perotto, S. and Bonfante, P., 2020. Unique and common traits in mycorrhizal symbioses. Nature Reviews Microbiology, 18(11), pp.649-660. https://www.nature.com/articles/s41579-020-0402-3 Another bloody paywall, but you can read the abstract and here is the peloton picture. https://share.google/images/droIULxU1yL85Lrgl

We promise that we will definitely do more science next time with data, graphs, tables and statistics. Well, not exactly next time. Next time (Ep. 6.) is Ep. 2. of Lab Rat Jazz Club. But, definitely the one after that. Episode 7. will be just science with no funny business. Promise.

Three punch lines; in one joke; brilliant.