{"product_id":"sigma-4-4-4-bio-fine-grade-with-value-added-biologicals-50-lb","title":"Sigma 4-4-4 Bio Fine Grade With Value-Added Biologicals | 50 lb.","description":"\u003ch3\u003ePremium Fine Grade Organic Nutrition + Value-Added Biologicals\u003c\/h3\u003e\u003cp\u003eSigma 4-4-4 Bio Fine Grade is a micro-granular organic fertilizer with a size grade of 110 — engineered for precision application across turf, vegetables, trees, ornamentals, and specialty crop. Formulated with 100% organic, nutrient-rich ingredients and twice the biological concentration of standard dry formulas, it delivers balanced NPK alongside humic acids and a full biological package to strengthen root architecture and improve water and nutrient uptake.\u003c\/p\u003e\u003cp\u003eRecommended for spring and fall aeration recovery, midsummer stress management, winter dormant feeding, cool-season overseeding nutrition, and warm-season transition programs.\u003c\/p\u003e\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eTotal Nitrogen (N): 4.0%\u003c\/strong\u003e\u003cbr\u003e— 0.2% Ammoniacal Nitrogen\u003cbr\u003e— 0.6% Other Water Soluble Nitrogen\u003cbr\u003e— 3.2% Water Insoluble Nitrogen\u003cbr\u003e\u003cstrong\u003eAvailable Phosphate (P₂O₅): 4.0%\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSoluble Potash (K₂O): 4.0%\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCalcium (Ca): 6.0%\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eIron (Fe): 0.1%\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDerived from: processed poultry manure, feather meal, bone meal, and sulfate of potash.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eBiological Package\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumic Acids:\u003c\/strong\u003e 3.0%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeneficial Bacteria:\u003c\/strong\u003e 2,800,000 CFU\/lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEndomycorrhizae:\u003c\/strong\u003e 6.1 Propagules\/lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrichoderma:\u003c\/strong\u003e 480,000 CFU\/lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAlso available without the BIO Package (beneficial bacteria, endomycorrhizae, trichoderma).\u003c\/p\u003e\u003ch3\u003eApplication Rates\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eTurf\u003c\/strong\u003e\u003cbr\u003eMedium: 19 lb (0.75 lb N) \/ 1,000 sq ft\u003cbr\u003eHigh: 25 lb (1.0 lb N) \/ 1,000 sq ft\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGolf Course\u003c\/strong\u003e\u003cbr\u003eLow: 12.5 lb (0.50 lb N) \/ 1,000 sq ft\u003cbr\u003eMedium: 19 lb (0.75 lb N) \/ 1,000 sq ft\u003cbr\u003eHigh: 25 lb (1.0 lb N) \/ 1,000 sq ft\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVegetables\u003c\/strong\u003e\u003cbr\u003eLow (peas, beans): 1,000 lb\/acre — incorporate 2–3 weeks before planting\u003cbr\u003eMedium (asparagus, beet, carrot, melon, pepper, cauliflower, broccoli, celery): 2,500 lb\/acre\u003cbr\u003eHigh (onion, sweet corn, potato, tomato): 2,500 lb\/acre at planting, then broadcast or band after establishment\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTrees \u0026amp; Palms\u003c\/strong\u003e — Rate based on 1\" of trunk diameter (caliper).\u003cbr\u003eIncorporation: 6.0 lb at transplanting\u003cbr\u003eBroadcast: 12.0 lb at transplanting\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOrnamentals\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow (porosity \u0026lt;60%): 30 lb\/cu yd incorporation | 49 lb\/1,000 sq ft landscape\u003c\/li\u003e\n\u003cli\u003eMedium (most nursery stock): 45 lb\/cu yd incorporation | 86 lb\/1,000 sq ft landscape\u003c\/li\u003e\n\u003cli\u003eHigh (porosity \u0026gt;80%): 56 lb\/cu yd incorporation | 124 lb\/1,000 sq ft landscape\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eContainer Rates\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1 gal: 56–112 g\u003c\/li\u003e\n\u003cli\u003e2 gal: 112–225 g\u003c\/li\u003e\n\u003cli\u003e3 gal: 169–356 g\u003c\/li\u003e\n\u003cli\u003e5 gal: 225–488 g\u003c\/li\u003e\n\u003cli\u003e7 gal: 338–731 g\u003c\/li\u003e\n\u003cli\u003e10 gal: 413–881 g\u003c\/li\u003e\n\u003cli\u003e15 gal: 450–938 g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDocuments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/sds-sigma-4-4-4-bio-1.pdf?v=1775853538\" target=\"_blank\"\u003eSafety Data Sheet (SDS)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/SIG_Sigma4-4-4BioFineGrade_Label_50lb_US01_V01_2023-Aug-08.pdf?v=1775853540\" target=\"_blank\"\u003eProduct Label\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Sigma_4-4-4_Bio_FG_Flier_5-5x8-5_ONLINE_022023.pdf?v=1775853545\" target=\"_blank\"\u003eProduct Flier\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIGMA AgriScience","offers":[{"title":"Default Title","offer_id":45424911286356,"sku":"Sigma-444BIO-50lb","price":30.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Sigma-4-4-4-Bio-Fine_5c3be7cf-3737-4d20-8a42-10a04bf4adfe.png?v=1775853304","url":"https:\/\/customhydronutrients.com\/products\/sigma-4-4-4-bio-fine-grade-with-value-added-biologicals-50-lb","provider":"Custom Hydro","version":"1.0","type":"link"}