Why Hydroponics? 0 629

By: Cameron Blake

Sources:  Oklohoma State University/ Life Easy blog/ The Lanka Salad Company

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Hydroponics is a system of soilless cultivation using water-based nutrients.

Hydroponics, by definition, is a method of growing plants in a water-based, nutrient-rich solution. Hydroponics does not use soil, instead, the root system is supported using an inert medium such as perlite, rock -wool, clay pellets, peat moss or vermiculite.

The hydroponic system offers farmers the ability to grow crops in areas where traditionally it would simply not be possible (like mountain lettuce at sea level in Sri Lanka). Growing hydroponically (as with vertical farming, aquaponics, aeroponics etc) also saves a lot of land space.

Many growers believe that growing in a soilless medium requires about the same effort as growing in soil. Not as fast as full Hydro-Growing in a soilless medium will get faster growth rates in soil, but cannabis plants will not grow as fast as a hydroponic medium that is able to get more oxygen to the roots.

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Well managed hydroponic set-ups are also highly energy-efficient and their existence places less strain on the environment than many traditional ‘monoculture’ farming systems. Water is recycled throughout the hydroponic system, greatly reducing the overall volumes required. As a general benchmark, it is considered that the hydroponic system use as little as 10% of the water required for soil-based agriculture.

BiZnomics--Why-hydeoponics-3With the global population growing steadily, it is imperative that a new form of agriculture develops alongside traditional methods to meet increasing food needs with lower impacts.

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The Importance of Choosing the Right Pair of SUNGLASS 0 657

By: Vison Care
Purchasing a pair of sun glasses or shades is not matter to be taken lightly and is not similar to buying clothes and shoes as the right choice matters for our eyes! Most often, folks opt to buy low quality shades, which cause excessive damage to the eyes; hence prevention is definitely better than cure.

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Let us first look at the benefits of using a pair of sunglasses;

01] Its fashionable
02] Reduces the sun’s glare
03] Protects the eyes from ultra violet radiations from the sun
04] Protects eyes from external hazards

According to the above, any pair of shades/ sunglasses sold in the market can be used for fashion, can reduce inconvenience caused by the sun’s glare and protect those peeps from external hazards, but to protect the eye from UV rays, it is compulsory to use a sun glass with UV blocking lenses.

In addition, the sun glass- lense- production method contributes to its quality. One way of producing lenses is by excessively heating and fitting the colorful flat glasses with a curved effect. Due to minor changes in the curvature of such lenses, the images visible to the eye can be somewhat blurred. Also, these lenses are not capable of blocking UV light.

The second method of producing sun glass lenses is the direct production of sun glass lenses. These lenses do not have above mentioned defects.
With these lenses, the UV blocking lens is also best suited for use as sunglasses.

Some folks choose to ignore these minor concerns regarding quality and choose shades at random but this may have a debilitating effect to the eyes. Once the naked eye is exposed to the sun the pupil contracts and a small amount of the sun’s rays goes in to the eye. In view of this, the UV rays also decreases.

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Nanotechnology in Agriculture System 0 817

By: Chantal D.

Sources:  Agronomy

Agriculture is the backbone of most of the developing countries in which a major part of their income comes from agriculture sector and more than half of their population depends on it for their livelihood.  The current global population is nearly 7.7 billion with 50% living in Asia. A large proportion of those livings in developing countries face daily food shortages as a result of environmental impacts or political instability, while in the developed world there is a food surplus. For developing countries, the drive is to develop drought and pest-resistant crops which also maximize yield. In developed countries, the food industry is driven by consumer demand which is currently for the fresher and healthier food products.

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Specifically in agriculture, technical innovation is of importance with regard to addressing global challenges such s population growth, climate change and the limited availability of important plant nutrients such as phosphorus and potassium.

Nanotechnology has gained intense attention in the recent years due to its wide applications in several areas like medicine, medical drugs, catalysis, energy and materials. Those nanoparticles with small size to the large surface area (1-100nm) have several potential functions. These days, sustainable agriculture is needed. The development of nonchemical has appeared as promising agents for the plant growth, fertilizers and pesticides. In recent years, the use of Nano materials’ has been considered as the alternative solution to control pant pests including insects, fungi and weeds.

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Despite these potential advantages, the agricultural sector is still comparably marginal and has not yet made it to the market to any larger extent in comparison with other sectors of nanotechnology application.

Nanotechnology helps agricultural sciences and reduce environmental pollution of pesticides and chemical fertilizers by using the nano particles and nano capsules with the ability control or delayed delivery, absorption and more effective and environmentally friendly and production of nano -crystals  to increase the efficiency of pesticides for application of pesticides with lower dose.

In the agricultural sector, nanotech research and development is likely to facilitate and frame the next stage of development of genetically modified crops, animal products inputs, chemical pesticides and precision farming techniques. The use of nanotechnology in agriculture has been mostly theoretical but it has begun and will continue to have a significant effect in the main areas of the food industry development of new functional materials, product development and design of methods and instrumentation for food safety and bio-security.

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