ALPINE SRN® liquid fertilizer functions as an efficient source of Nitrogen at critical growth stages in field crops, vegetables, turf and fruits. ALPINE SRN liquid fertilizer may be soil-applied, foliar sprayed, or injected through irrigation systems including drip. Its use is suggested as a supplement to a regular, balanced fertilizer program to enhance yields and improve overall quality. 72% of the total nitrogen in this product is in the slow release form; this allows the nitrogen release to be matched with the crops needs. Click here to download a product brochure.   

RECOMMENDED APPLICATION RATES

FIELD CROPS

• ALFALFA – Apply 4-8 L/ac after each cutting when sufficient foliage is present.
• CANOLA – Apply 4-8 L/ac prior to bolting.
• CEREAL and SMALL GRAINS – Apply 4-8 L/ac at tillering through flag leaf.
• CORN (Field) – Apply 4-8 L/ac on the young plant when sufficient foliage is present. Apply 4-8 L/ac at tasseling and again after pollination
• CORN (Seed) – Apply 4-8 L/ac before detasseling or anytime a crop protection product is used.
• CORN (Sweet) – Apply 4-8 L/ac when plants are 12 to 24 inches tall, then at tassel emergence and repeat after pollination.
• POTATOES – Apply 4-8 L/ac at early tuber initiation and again as additional nitrogen is needed.
• SOYBEANS – Apply 4-8 L/ac at the R4 to R6 growth or anytime with glyphosate.
• SUGARBEETS – Apply 4-8 L/ac at both the 10th leaf stage and the 20th.
• WHEAT (Winter) – Apply 4-8 L/ac as at top-dress and again at flag leaf.
• WHEAT (Spring) – Apply 4-8 L/ac anytime prior to flag leaf and again at grain to boost protein.

VEGETABLE CROPS

• BEANS – Apply 4-8 L/ac at early pod fill.
• BROCCOLI, BRUSSEL SPROUTS, CABBAGE, CAULIFLOWER – Apply 4-8 L/ac prior to head formation.
• CUCUMBERS, SQUASH, and ALL MELONS – Apply 4-8 L/ac at early bloom. Crop protection products at anytime an application is needed.
• LETTUCE – Apply 4-8 L/ac at early head formation.
• ONIONS and GARLIC – Apply 4-8 L/ac at 12-inch height then again at bulb fill.
• PEAS – Apply 4-8 L/ac at early flowering then again every 14 days after.
• PEPPERS – Apply 4-8 L/ac at early fruit development.
• SPINACH – Apply 4-8 L/ac once sufficient foliage is established then every 14 days after.
• TOMATOES – Apply 4-8 L/ac at full bloom.

Check with your ALPINE District Sales Manager for rates on other vegetable crops.  

TURF

Recommended rates from .25 lbs. to 1 lb. Nitrogen/1000sq ft per application. Use 3 to 5 gallons of water per 1000 sq ft as a carrier.

SPRINKLER IRRIGATION INCLUDING CENTER PIVOT

Apply 4-12 L/ac per application depending on crop demand. For Center Pivot application set on lowest water setting possible  

DRIP IRRIGATION

Apply up to 16 L/ac per application during active root growth. Check for compatibility if using with other fertilizer.