I am attempting to figure out the needs of my homegrown hops per recommendation from the Oregon State Univ Extension Service Hops Fertilizer Guide. Obviously a soil test is needed to determine an exact program. But in the absence of a soil test, Id like to break down what professional growers are targeting per plant.
Id like peer review on the numbers Ive come up with. Fertilizer application rates are given per acre in the Guide. Id like to break it down per hop plant. I also find grams are much easier to work with on the my scaled down hop yard.
~826 plants per acre?
An acre is 88 yards by 55 yards. Given 10 ft row spacing, and 5 ft between plants thats 26 rows with 33 plants per row, so 33*26 = 826 plants per acre. Does that make sense?
Max ~87 grams Nitrogen per plant?
With 826 plants per acre, and apply a max of Nitrogen at (150 lb/acre) / (826 plants /acre) = .181 lbs N per plant * 483 grams per lb = ~87 grams of Nitrogen per plant.
Max ~18 grams Phosphate per plant?
With 826 plants per acre, and apply a max of Phosphate at (30 lb/acre) / (826 plants /acre) = .036 lbs P per plant * 483 grams per lb = ~18 grams of Phosphate per plant.
Max ~87 grams Potassium per plant?
With 826 plants per acre, and apply a max of Potassium(K) at (150 lb/acre) / (826 plants /acre) = .181 lbs K per plant * 483 grams per lb = ~87 grams of Potassium per plant.
Obviously these are maximum rates, but to me these seem like very large amounts of fertilized per plant. For example to meet Nitrogen needs, and a fertilizer with N-P-K at 10-3-1, a single plant could need up to 1247 grams or 2.6lbs of fertilizer, with additional K needed.
Thanks for any input.
Cheers,
Bikefoolery
Id like peer review on the numbers Ive come up with. Fertilizer application rates are given per acre in the Guide. Id like to break it down per hop plant. I also find grams are much easier to work with on the my scaled down hop yard.
~826 plants per acre?
An acre is 88 yards by 55 yards. Given 10 ft row spacing, and 5 ft between plants thats 26 rows with 33 plants per row, so 33*26 = 826 plants per acre. Does that make sense?
Max ~87 grams Nitrogen per plant?
With 826 plants per acre, and apply a max of Nitrogen at (150 lb/acre) / (826 plants /acre) = .181 lbs N per plant * 483 grams per lb = ~87 grams of Nitrogen per plant.
Max ~18 grams Phosphate per plant?
With 826 plants per acre, and apply a max of Phosphate at (30 lb/acre) / (826 plants /acre) = .036 lbs P per plant * 483 grams per lb = ~18 grams of Phosphate per plant.
Max ~87 grams Potassium per plant?
With 826 plants per acre, and apply a max of Potassium(K) at (150 lb/acre) / (826 plants /acre) = .181 lbs K per plant * 483 grams per lb = ~87 grams of Potassium per plant.
Obviously these are maximum rates, but to me these seem like very large amounts of fertilized per plant. For example to meet Nitrogen needs, and a fertilizer with N-P-K at 10-3-1, a single plant could need up to 1247 grams or 2.6lbs of fertilizer, with additional K needed.
Thanks for any input.
Cheers,
Bikefoolery