Block recipe · 2 × 50 ft

E CUCURBIT

Extraction from the cultivars occupying this block. Broadcast the recipe into the top 4 in before the next transplant. Split soluble K if the rate is heavy.

Organic N mineralizationN release at 65°F — warmer soil, faster

Soil · temperature and texture

SOIL TEMP°F at 4 inOM% organic matterTEXTUREHORIZON

Bed-feet: 100 ft
N need: 2.20 lb
P need: 0.72 lb · 1.66 lb P₂O₅
K need: 3.35 lb · 4.04 lb K₂O

Recipe meets N and K. P held at ≤ 25% over removal. OMRI palette.

Recipe · E CUCURBIT

MATERIAL	LB	LB/100 FT	OZ/FT	G/M	QT/100 FT	BAGS	N	P	K
Feather meal 12-0-0	17.90 lb	17.90 lb	2.864	266.4	24.86	1 × 50 lb	1.874 lb	0.000 lb	0.000 lb
Bone meal 3-15-0	17.04 lb	17.04 lb	2.726	253.6	14.82	1 × 50 lb	0.326 lb	0.725 lb	0.000 lb
Sulfate of potash 0-0-50	8.07 lb	8.07 lb	1.291	120.1	5.21	1 × 50 lb	0.000 lb	0.000 lb	3.350 lb

N Δ

+0.000 lb

P Δ

+0.000 lb

K Δ

+0.000 lb

Buy list

1 bag Feather meal · 1 bag Bone meal · 1 bag Sulfate of potash

Extraction · crop mix

CULTIVAR	FEET	N	P	K
Costata Romanesco	50 ft	1.200 lb	0.375 lb	1.750 lb
Marketmore 76	50 ft	1.000 lb	0.350 lb	1.600 lb

Application cautions

Feather meal 12-0-0
Hot N. Broadcast and rake; do not band against stems. 4-week lag in soils <50°F.
Bone meal 3-15-0
P availability is pH-sensitive. Mix into the top 4 in. Do not use as a primary N source.
Sulfate of potash 0-0-50
Soluble. Split heavy rates. SOP, not muriate — chloride-free for organics.

Elemental N / P / K. Fertilizer labels are N–P₂O₅–K₂O. P first-season frac: rock 0.15 · bone 0.65 · compost 0.5. Palette locked to 3 sources. Δ is supplied − removal.