Leaf deficiencies and on-farm bioinputs: nettle, horsetail and bicarbonate

When a leaf yellows or deforms, the first step is not to throw a product at it. It is to look closely, note what you see and know which part of that reading is backed by sources and which part is field guidance. That is what the free True Regenerative App does today in Leaf deficiencies.

Two parts in every sheet

Deficiency sheets come in two blocks:

• Confirmed by the sources: symptoms and nuances that appear in reference guides and papers (universities, public centres, official reports).
• Guidance, from experience: frequent causes, likenesses with other deficiencies or damage, and on-farm clues that do not yet have a specific source behind them.

You see all the information and you know how much weight to give each part. It is not a diagnosis: it is educational guidance to choose the next step with more judgement.

From the leaf to the farm

Reading the leaf does not replace an analysis or a visit. It helps you organise what you observe: what happens on new or old leaves, whether yellowing follows the veins, whether there is edge burn, whether the crop is one you already have sheets for.

If you send a photo on Telegram to @TrueRegenerativeBot, the reply is still educational guidance, not a diagnosis.

On-farm preparations already in the App

In the free edition you will find sheets for preparations that are common in farm management:

• Nettle: extracts and field uses consulted alongside the sheet, without replacing the label or the rules in your area.
• Horsetail: the same criterion: a practical sheet to consult, not a magic recipe.
• Bicarbonate: a frequently used preparation; the sheet sets out the framework and cautions about rates.

We do not invent rates here on the website. If you use another preparation on your farm, note it and check it before applying it at scale.

When it is time to move to the biofactory

Reading the leaf and making fertility at home go together. If what you see points to a tired soil or a lack of input autonomy, the next step is usually to set up or refine the biofactory: compost, bokashi, ferments and liquids with what you already have. The App helps you look; the biofactory helps you respond on your plot, with your team.

If you want to try it before a visit: open the App from Tools. If you would rather design it with us on the farm, write to us or book the diagnosis.

Related: Tools / App · Biofactory and bioinputs · Biofactory and bokashi on the farm · Regenerative agriculture in Catalonia.

Sources

• Leaf deficiency and preparation sheets in the free True Regenerative App: “Confirmed by the sources” / “Guidance, from experience”.
• True Regenerative. Page: biofactory and bio-inputs and guide: bokashi on the farm.