Agriculture ropes

With the advent of modern fertilizers, seaweed fell out of use because of the ease of application of formulated pesticides and because the contamination of seaweed washed up on beaches with plastic waste (fishing lines and ropes, bottles, etc.). With the onset of green agriculture and the increasing demand for organically farmed produce, seaweed use as a fertilizer has come back into fashion. 

Trisubstituted organotins are useful biocides in agriculture and industry. They function as fungicides, bactericides, antihelminthics, and rodent repellents (WHO 1980). Tributyltins are used as antifoulants in marine paints but are restricted by the Organotin Antifouling Paints Control Act (June 16, 1988) which limits the type of vessel on which these paints can be used and sets acceptable release limits (U.S. Bureau of Mines 1989). Bis(tributyltin)oxide is used as a preservative for wood products, leather, ropes, fabrics, and paper. 

It was once a patriotic duty for an American farmer to grow marijuana (hemp). In 1942 a film called Hemp for Victory was produced and distributed by the U.S. Department of Agriculture to encourage U.S. farmers to grow cannabis for much-needed hemp products, particularly rope. During World War II, narcotic drug use reached its twentieth-century low point in the United States. This was due to a continual decline in use as well as diminished supply due to disrupted international transportation. 

Arkhe PLA fibres are also used for manufacture of biodegradable agricultural products such as nets, nonwoven sheets, sand bags, garbage bags, anti-weed sheets and rope. 

Polypropylene accounted for about half of the nonwoven products in industrial uses in 2001. Its share in ropes and nets was 55-60%, and 70-80% in civil construction, where polyester claimed 20-24%. In automotive applications, polypropylene shared 26-30%, nylon almost 50%, and polyester about 20%. Polypropylene contributed to over 86% of agricultural nonwoven, 100% of packaging cloth, 85% of sanitary items, and 64-70% of medical applications. The world consumption of industrial nonwoven products was 1.329 MT in 2000. Polypropylene topped all synthetic fibers with a share of over 40% in this market segment. 

Prepared filaments and fibres are applied not only in the floor coverings as the most important utilization for PP, but also medical, hygienic, apparel, automotive and/or agricultural sectors became crucial, for applications such as disposable diapers, sports underwear and equipment, artificial grass, geo textiles, ropes, car seats, oil wipes, wet and dry filters or membranes. Physical and chemical properties of polyolefins fibres are developed for many applications, in order to increase comfort characteristics, tensile strength, and/or other utility properties they are often blended, co-processed or combined with other materials such as polar acrylics, wool, bonding agents, hydrophilic fillers, or stabilizers. 

The excellent electrical insulation properties of PE and its good moisture resistance make it well suited for wire and cable coatings. Uses include power, communications, and control applications. Other major applications of PE include pipes such as domestic water and gas piping, agricultural piping, and ink tubes for ballpoint pens. PE is also used as a filament on rope, fishing nets, and fabrics. 

Natural polymeric fibres have (literally) supported the development of human civilisation since its prehistoric beginnings. A particularly prominent role has been played by cellulose, a polysaccharide which is one of the world s most abundant and versatile fibrous polymers. Cellulose fibres are the reinforcing component of wood, a natural composite that can be fashioned into devices used for shelter, transportation, agriculture, war, communication, ornament and recreation. Cellulose fibres have been woven into clothing, twisted into ropes and bowstrings, and processed into papyrus and paper. Fibrous proteins, especially keratin (wool, mohair), collagen (hide, parchment, catgut) and silk also have a rich history and an assured future as useful materials. 

PCP and its salts were introduced into commerce in 1936 and were one of the most heavily used substances in North America for many years. They were used primarily as a timber preservative to control molds, wood-boring insects, termites, and a variety of fiingal rots. Their widespread use was due to their solubility in both aqueous and organic solvents. They were so successful that their use was extended to other applications such as in petrochemic drilling fluids, paints, oils, leather, masonry, paper mill systems, agricultural seeds, rope, and in cooling tower water. 

Twines, ropes and cordage are used for the purpose of tying, knotting and binding, particularly agricultural commodities. Jute yarns of various dimensions are plied together to make twines as per requirement and use. 

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