Rock phosphate

Rock Phosphate -- A naturally occurring product that is not soluble in water. Useful for soils with a high degree of organic matter, but will not break down and be useful to plants in sandy or neutral soils -- needs acidic soils to be catalyzed.

rock phosphate ................. 0.0.......39.0..........4.5
seaweed ........................... 1.7...........0.8.........5.0
soybean meal .................... 6.0.........1.2..........1.5 ...

rock phosphate Rock phosphate is an extremely slow release source of phosporus, one of the three main nutrients. It should be finely ground to enhance its effectiveness, and acts as a long-term reserve in the soil.

Green sand and rock phosphate
Pruners
Shovel
Tarp
Weeding knife or trowel
Perennial borders benefit greatly from complete renovation every few years, especially where tenacious perennial weeds such as grasses have taken hold.

Although various fertilizers and mineral nutrients (agricultural lime, rock phosphate, greensand, etc.) should be added periodically to the organic garden, by far the most useful substance for building and maintaining a healthy, ...

Organic potting mix ingredients that provide nutrients to your plants include compost, alfalfa meal, cottonseed meal, worm castings, greens and rock phosphate. A good compost will often contain enough nutrients to get your plants off to a great start.

If you would like to correct your soil's phosphorus deficiency using organic fertilizer, try using bone meal or rock phosphate. These both can help with replacing phosphorus in the soil.

Don Boekelheide, our test gardener in Charlotte, North Carolina, scratches a 5-3-3 organic fertilizer and a handful of rock phosphate into the soil around his tomato plants twice during the growing season—once when the plant is a foot tall, ...

Phosphorous can be obtained through the addition of bone meal, colloidal phosphorous and rock phosphate. Granite dust, greensand and ground kelp are all good sources of potassium. Plants get the three main nutrients from decaying plant matter.

Because there is usually such a low proportion of actual bone, manufacturers bulk it out with rock phosphate to get to the regulated 5%. On alkaline soils phosphates tend to get locked up.

PHOSPHORUS - stimulates root growth and promotes fruit and seed maturation. Good sources are soft rock phosphate or bone meal. Deficiencies are indicated by purple leaves, brittle roots, skinny stems and late fruit set and maturity.

Its superior blend of fish bone meal, feather meal, kelp meal, alfalfa meal, soft rock phosphate, fish meal, mined potassium sulphate, humic acid, seaweed extract, ...

Use natural fertilizers like compost, rock phosphate, kelp or seaweed, fish meal and alfalfa meal. These feed the soil and the microorganisms it contains. They also encourage a natural rate of plant growth, which helps eliminate some pest problems.

To the bottom of that furrow, add some form of phosphorus- composted fruit is the cheapest and easiest to "make" at home, but stores will have other forms of rock phosphate and whatnot if you require.

Before planting irises, work organic compost or a combination of animal manure and rock phosphate into the top four to six inches of the soil bed.

A few organic products can be purchased "fortified" for a higher nutrient analysis. The ingredients used to fortify organic fertilizers are organic materials; for example, rock phosphate to increase phosphorus, or greensand to increase potash.

Before planting, compost or aged manure can be dug in. Peas also respond well to the addition of phosphorus (the middle number) so digging in bonemeal or rock phosphate will help with pea production.

See also: Phosphate, Plant, Soil, Fertilize, Water