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Copy link Almond Granular Polysulphate Trial on Sandy Loam
11
Yield increase
Polysulphate increased ROI, yield and NUE
Sanger, California, USA
11
Key Conclusions
Polysulphate in the fall or spring showed positive yield responses vs GSP. However, granular Polysulphate (spring) resulted in statistically higher nut yield and economic returns.
In addition, compared to GSP, Polysulphate (both standard and granular) shows positive NUE and nut yield due to prolonged release of K, Ca, Mg.
Objective
To evaluate the performance of Polysulphate Standard, spring or fall applied, compared to the grower standard practice on almond in California.
Trial Details
Trial station
Sanger, California, USA
Crop
Almond
Product
Polysulphate®
Assessments
Yield, Tissue and Soil Analysis
Treatments
- Grower Standard Practice, Spring Applied, 0 lb/acre
- Polysulphate Standard + MAP, Spring Applied, 1071 lb/acre + 38 lb/acre
- Polysulphate Standard + MAP, Fall Applied, 1071 lb/acre + 38 lb/acre
- Polysulphate Standard + SOP + MAP, Fall Applied, 750 lb/acre + 90 lb/acre + 38 lb/acre
- Polysulphate side discharge broadcast spreading along the treeline
Treatments
- Grower Standard Practice, Spring Applied, 0 lb/acre
- Polysulphate Standard + MAP, Spring Applied, 1071 lb/acre + 38 lb/acre
- Polysulphate Standard + MAP, Fall Applied, 1071 lb/acre + 38 lb/acre
- Polysulphate Standard + SOP + MAP, Fall Applied, 750 lb/acre + 90 lb/acre + 38 lb/acre
- Polysulphate side discharge broadcast spreading along the treeline
Results
Polysulphate on Almonds
Parlier, California, USA
4.8
Yield increase
Agrocote on Almonds
Sanger, California, USA
25
Yield increase
The four-in-one natural fertilizer
