Growing notes
Natural does not mean clean: what can ride in o...
Biosolids, poultry litter, green waste compost, phosphate rock, kelp and fish meals can all carry contaminants. Here is what has been measured, what New Zealand limits apply and what to...
Natural does not mean clean: what can ride in o...
Biosolids, poultry litter, green waste compost, phosphate rock, kelp and fish meals can all carry contaminants. Here is what has been measured, what New Zealand limits apply and what to...
How to read a Hill Laboratories soil report
A line by line guide to the Hill Laboratories Basic Soil report New Zealand growers actually receive: what each number measures, what the medium range bar means, what to do...
How to read a Hill Laboratories soil report
A line by line guide to the Hill Laboratories Basic Soil report New Zealand growers actually receive: what each number measures, what the medium range bar means, what to do...
Rock dust: an honest look
Rock dust holds real minerals but releases them over years, and trials in temperate soils are mixed. We stock one, so here is what the evidence supports, what it does...
Rock dust: an honest look
Rock dust holds real minerals but releases them over years, and trials in temperate soils are mixed. We stock one, so here is what the evidence supports, what it does...
Complete organic fertiliser, rebuilt for New Ze...
Steve Solomon's complete organic fertiliser recipe kept changing and was never written for New Zealand ingredients. Here is its history, its logic and a starting recipe by volume and weight...
Complete organic fertiliser, rebuilt for New Ze...
Steve Solomon's complete organic fertiliser recipe kept changing and was never written for New Zealand ingredients. Here is its history, its logic and a starting recipe by volume and weight...
How much compost is too much? Compost, chicken ...
Compost spread thickly enough to supply a crop's nitrogen brings about 17 times the phosphorus the crop removes. The metric sums for compost and chicken, sheep, cattle and horse manure,...
How much compost is too much? Compost, chicken ...
Compost spread thickly enough to supply a crop's nitrogen brings about 17 times the phosphorus the crop removes. The metric sums for compost and chicken, sheep, cattle and horse manure,...
Lime, gypsum, dolomite or oyster shell: which c...
pH is not a calcium test. Use lime when pH is low, gypsum when pH is fine but calcium is short, and dolomite only when magnesium is low too. A...
Lime, gypsum, dolomite or oyster shell: which c...
pH is not a calcium test. Use lime when pH is low, gypsum when pH is fine but calcium is short, and dolomite only when magnesium is low too. A...