CNF blog
Crop nutrition
Which nutrient, how much and when, crop by crop.
PDM or MOP? Choosing a potash fertilizer for your crop
MOP has four times the potash per bag. PDM has no chloride and adds organic matter. Here is how to decide, and how to compare the price fairly.
Understanding water-soluble fertilizers: a practical guide for drip farmers
What water-soluble fertilizers are, what the three numbers on the bag mean, and which grade to run through drip at each stage of the crop.
Calcium nitrate: when to use it and when to leave it out
Calcium nitrate supplies calcium and nitrate nitrogen together. Here is what it fixes, how to apply it, and the one mixing rule you must not break.
NPK fertilizers explained: which ratio works for your crop?
What nitrogen, phosphorus and potash each do, how to read an NPK ratio, and how to match it to the stage of your crop.