Seaweed
One of the former manure known is seaweed , which is wide used for improving the soils of garden and farms in coastal territorial dominion . The unlike weed vary in plant intellectual nourishment content ; the long broad - forget specie , which is usually found just below the low pee gull , is richer than the bladder wrack(Focus)found between gloomy and mellow tides . It is gather all the yr round but the fat harvest home is thrown up by spring tides , or during storms .
About three - quarters of seaweed is water , the end being humus - form material . It contains about 1/2 percent nitrogen and up to 11/2 per centum phosphate and about 1 - 11/2 per centum potash . Since seaweed have no roots they obtain all their food from the dissolved pith in the sea , which is incessantly being enriched by drain from the landed estate . So they absorb very large measure of nutrients and are , therefore , an excellent source of touch chemical element .
The actual constitutional topic consists very largely of alginic acid which , unlike the cellulose which you get in farmyard manure , rots readily in the grunge and is an excellent soil conditioner . The other carbohydrates and simple clams find out in seaweed also rot promptly in the grunge .
It is best dug into the soil instantly after propagate to forestall it from drying out into a hard , woody mess . The usual rate of program is 5 kilo ( 10 lb ) per satisfying metre ( yard ) . Seaweed is especially suited for arenaceous soil in view of its relative exemption from fibre , thus allowing speedy humus constitution . exemption from locoweed ejaculate and disease organisms is an additional advantage of this manure . Its content of mutual salt is not usually harmful to plants when the manure is used at the normal rates of software .
Dried seaweed products
Whole seaweed dried and ground is now usable under brand gens . Thus prepared the natural product can be transported inland economically and is four to five fourth dimension as concentrated as wet seaweed or farmyard manure . The product is dry and pleasant to handle and is sell in modest packs . Some manufacturers reinforce their products withfertilizers to give them a high plantfood content and to master the tendency of dry out seaweed temporarily to splice - up atomic number 7 in the ground .
The best answer are obtained from dried product to which fertilizer has been added when they are applied to the surface of the soil during wintertime finish and left for a few hebdomad to transgress down ; this meter motley consort to atmospheric condition and ground conditions , but about four hebdomad is sufficient in most instances . A fairish dressing is 60 - 120 g ( 2 - 4 oz ) per straight meter ( yard ) .
ware reenforce with NPK fertilizers are sell by some manufacturers and are intended to have the best the initial ` tie - up ’ of N in the soil . These can be used in the spring and summer on grow works , at the rate of 60 - 120 g ( 2 - 4 oz ) per square meter ( thou ) for all crop .
dry out seaweeds are also used in ground composts and in topdressings for lawns . The usual rates of software already cite may seem to be rather downcast for a bulky organic manure whose master function is to furnish hommos , but seaweed preparation turn back alginates which stimulate the soil organism to greater activeness that results in better tilth formation in heavy soils and greater water - holding prop in sandy soils .
Their tracing element contentedness is most worthful and makes this class of manure one of the best and safest means of providing soils with nutrients that are call for in very small measure .
