Lettuce Fertilizer 8-15-36 | Chelated Micronutrients | Hydroponics, Soil & Foliar Application

<p>Greenway Biotech Lettuce Fertilizer 8-15-36 is a water-soluble fertilizer for lettuce, kale, spinach, cabbage, broccoli, bok choy, chard, and the other leafy crops named on its label. It guarantees 8% nitrogen (7.5% nitrate, 0.5% ammoniacal), 15% available phosphate (P₂O₅), and 36% soluble potash (K₂O), with EDTA-chelated iron, manganese, zinc, and copper plus boron and molybdenum.</p>
<p>The label&rsquo;s soil rate is 3 grams per plant every 4 to 6 weeks. With a soil test, size a bed by the potash the test recommends. In hydroponics, dose it to a potassium target and keep it in a separate stock tank from calcium nitrate.</p>
<p>It contains no calcium or magnesium and little nitrogen for its potash, so plan those nutrients separately. Keep to the crops on the label, because it contains boron. Weigh it.</p>
<p>Registered with the California Department of Food and Agriculture (CDFA). An independent laboratory heavy-metal test found arsenic, cadmium, and lead well below California&rsquo;s limits. Packed in Madera, California, in 1 to 25 lb sizes.</p>