WO2003016630A2

WO2003016630A2 - A readymade lawn

Info

Publication number: WO2003016630A2
Application number: PCT/IN2002/000160
Authority: WO
Inventors: Christy Fernandez; Uma Shankar Sharma; Krishnan Palanjiveliyil Somananthan Nair
Original assignee: Coir Board; National Research Development Corporation
Priority date: 2001-08-13
Filing date: 2002-07-29
Publication date: 2003-02-27
Also published as: AU2002334377A1; WO2003016630A3

Abstract

This invention relates to a readymade lawn of natural grass comprising a layer of netting material, a single or plurality of non-woven layers, a coir pith layer on said non-woven layer, a layer of organic manure produced from coir pith and natural grass on said coir pith layer.

Description

TITLE

A READYMADE LAWN

FIELD OF INVENTION

This invention relates to a readymade lawn having grass

supported on a blanket of coir.

BACKGROUND OF INVENTION

Readym de lawns are known in the art which are normally used

for laying of tennis courts. However, such lawns including

grass are m ade of synthetic material. As grass on such lawns is

also of a synthetic material,, it would be apparent that it is not

comparable to agricultural or natural grass. Due to such a

lim itation, such lawns have a lim ited application and further, do

not possess the same aesthetic or feel properties as agricultural

or natural grass.

Readymade lawns with natural grass are not hitherto known.

OBJECTS OF THE INVENTION

An object of this invention is to propose a novel construction of

readym de lawn. Another object of this invention is to propose a readymade lawn

of natural grass and made essentially of natural products.

Still another object of this invention is to propose a readymade

lawn of natural grass, which can be easily rolled and shifted

from one location to another.

Yet another object of this invention is to propose readymade

lawn of natural grass which ensures a complete drainage of

water.

A further object of this invention is to propose a readymade

lawn of natural grass, which can be laid on any surface.

A still further object of this invention is to propose a readymade

lawn of natural grass, which is simple in construction.

DESCRIPTION OF THE INVENTION

According to this invention, there is provided a readymade

lawn of natural grass comprising :

i. a layer of netting m aterial,

ii. a single or plurality of non-woven layers,

iii. a coir pith layer on said n on -woven layer, iv. a layer of fertilizer of treated coir pith and natural grass

on said coir pith layer.

As will be apparent from the ensuing description, the

readymade lawn of the present invention is of a soilless

medium. For this purpose, the lawn comprises a netting

material m ade of coir. If required, such a netting m y be placed

on a sheet made of any suitable plastic m aterial such as

polyvinyl chloride or polyethylene. A single or a plurality of

layers of a n on -woven fabric is provided on said netting, said

non-woven layers imparting thickness or bulk properties to the

lawn. Yet another function of the non-woven layers is to allow

the grass roots to form a bush and get entangled in the non-

woven material.

Preferably, the woven layer is non-woven layer is coir needled

felt and having a density of 400-1400 gms/m².

A layer of coir pith is provided on the non -woven layers, which

adds to the bulk properties of the lawn. Further, such a layer of

coir pith forms a support or bed for grass. Grass is planted on the layer of bed of coir pith and coir pith

manure is sprinkled thereon to form a layer on said bed.

Initially, such coir pith manure is required to sustain the grass.

However, as the bed and the non-woven layers are biodegra¬

dable in nature, nutrients are released and absorbed for the

further growth and sustenance of grass.

The treated coir pith comprises a layer of mushroom seeds

sandwiched between layers of pith, an upper layer of urea

provided on the layer of pith. Such a treated coir pith is allowed

to mature till the weight is substantially reduced as lignin is

consumed by fungi or mushroom seeds. Such a treated coir pith

releases nutrients such as phosphorous, nitrogen and potassium.

If required, hydro calcium nitrate m ay be applied as a fertilizer.

Further objects and advantages of this invention will be more

apparent from the ensuing description when read in conjunction

with the accompanying drawing and wherein

Fig.l shows a sectional view of the readym ade lawn of the

oresent invention. Referring to Fig. l, the readymade lawn L of the present

invention may be in the form of a ro liable blanket and which

can be laid on any surface. One of the advantages of the present

invention is that the lawn L can be laid on any arid surface or

even concrete, as the surface only forms a support for the

blanket and without contributing to the sustenance of grass.

The lawn comprises a layer of netting N made of a biodegra¬

dable material such as coir. A support sheet SS m y be

provided for said netting, a single or a plurality of layers of

non-woven layers of coir NW is provided on said netting. A

layer of coir pith CP is supported on said non-woven layers.

Natural grass NG is planted on said n on -woven layers and

treated coir pith TCP is sprinkled thereon.

Claims

WE CLAIM:

1. A readymade lawn of natural grass comprising a layer of

netting material, a single or plurality of non-woven layers, a

coir pith layer on said non-woven layer, a layer of organic

manure produced from coir pith and natural grass on said

coir pith layer.

2. A readymade lawn as claimed in claim 1 wherein said layer

of netting m terial is m de of coir.

3. A readymade lawn as claim ed in claim 1 wherein said non-

woven layer is of coir.

4. A readymade lawn as claim ed in claim 1 comprising a sheet

to support said netting.

5. A readymade lawn substantially as herein described and illustrated.