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Author: Andrew McGuire

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Fine-Tuning with Soil Health; Soilborne Disease?

Healthy soils produce healthy crops. right? Nope. Although it would seem the very definition of soil health, this popular thinking does not match what plant…

Fine-Tuning with Soil Health; Water

In my last post, we found that soil health was not a major factor for crop yield but is useful in fine-tuning crop nutrient supply.…

Fine-tuning with Soil Health; Nutrients

Farming requires a lot of knowledge and skill. You have limited time and resources. It pays to know where your efforts will return the most…

Why Hasn’t Biological Nitrogen Fixation Fixed Nitrogen Scarcity in the World?

Most environments are limited by the lack of nitrogen. This explains why the world stays green and why it pays to follow the nitrogen. But…

Do soil health indicators indicate soil health?

There is a problem with how soil health indicators are being developed. We start with farmers using soil health practices, for instance, no-till, crop rotation,…

Always Follow the Nitrogen

“Follow the money” is a reliable tactic for figuring out people's actions. Money is scarce, people want it, and do stuff with it. For plants,…

Why the World Stays Green

The world is green with plants. The world also has thousands of species of plant-eating insects and other organisms. Why don’t all those insects eat…

Bet-Hedging with Cover Crop Mixtures

What do weeds and gamblers in Las Vegas have in common? They both manage the risk of unpredictable outcomes through a strategy called bet-hedging. Could…

Buckwheat and Phosphorus

I once grew buckwheat in town between our sidewalk and the street. It got a lot of looks from passersby and one lady even knocked…

Crop Diversity is Not the Cause

I previously covered reasons why the results of many biodiversity studies do not apply to agriculture. Here, I want to emphasize a related issue: how…
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