The Butterfly Lodge is uniquely created to house about 20 local butterfly species. You can get up-close to them and be awed by the beauty of these flying jewels. Read More...

The Dynamic Root Floating (DRF) Technique is a nutrient circulation hydroponics system used in a tropical climate which Oh' Farms adopts, growing hygienic and high quality leafy vegetables and culinary herbs all year round. Read More...

Designed and made in Japan, the Horizontal Pillow Packing Machine is available in two models to suit all your packing needs. Read More...

With a good understanding of the culinary and medicinal values of Herbs & Spices, not only will it enhance the flavour of food when used in cooking but also a healthier life style as it will cut down the usage of oil, artificial seasonings and condiments. Read More...

Oh' Farms has the knowhow and facilities to process ready-to-cook vegetables. Peel, cut, dice, chop or slice to your requirement, these cut-vegetables are hygienically packed and ready for immediate cooking. Read More...

Basics

F A Q

Is Hydroponics Different From Organics?

In organics, the nutrient availability depends on the organic nutrient source, the environment and the microbial population that is necessary to convert the organic nutrients to inorganic forms. In hydroponics, the nutrients are made available directly in the organic form.

Plants can absorb their nutrients only in inorganic ionic forms. The growth and yield performance of a plant depends not only on how much nutrients is available in the root zone but also on the root and shoot environment.

Organic farming is as good as hydroponics farming albeit low and slow productivity.

Plants mine their own nutrients from the soil through their root system. We call these nutrients as fertilizer nutrients when they are aided by man and as organic nutrients when they are aided by microbes. The former is hydroponics and the latter is organics.

Soil Vs Hydroponics

  • Plants can be grown anywhere. Hydroponics adapts easily to indoor culture or it may be used outdoors and in greenhouses. There is no need to source for a piece of fertile land as in the case of soil cultivation.
  • No pesticides are used in the hydroponics greenhouse because no soil means no weeds or soil borne pests and diseases. The netting round the greenhouses prevent the pests/ insects from attacking the plants.
  • Better control over plant growth. Plants growing in the soil are frequently competitors for the essential elements in the soil.
  • Less work with hydroponics as there is no tilling of soil, fumigation, watering and pulling of weeds.
  • Better yield as compared to soil cultivation. The root systems stay smaller on hydroponically grown plants, so the plant can concentrate its growth energy on producing plant mass, rather than roots. This can result in up to 30% faster growth.
  • Soil erosion due to the constant use of heavy machine in soil cultivation, which results in damage to the soil structure.

The Chemical Controversy

The air we breathe, the water we drink, the food we eat and all things that we use everyday are made of chemicals, either organic chemicals or inorganic chemicals. They are ecologically balanced to keep the earth and the earthlings in a healthy state.

Most of the fertilizer nutrients used in growing plants are mined from the soil, hence called mineral nutrients. Sometimes, they are purified to remove the impurities and sold as fertilizers. This is like obtaining free-flowing table salt powder from seawater or from rock deposits. Nobody has ever complained that table salt is a chemical and that the saline drops the hospitals give to the patients, is a chemical. In fact, most medicines are inorganic chemicals and they are more specific in their actions and reactions.

These nutrient chemicals have been tested world over and have been certified as not only natural but also safe. Fertilizer nutrients and organic nutrients can be likened to formulated milk powder and mother's milk. Each has its own advantages and disadvantages.

Chemicals that become controversial are those pesticide chemicals synthesized in the laboratories to kill the pests. The use of almost all the synthetic chemicals and some toxic natural chemicals have been restricted and their use is monitored by the government's environment and health departments.

Nutritional Disorder

What is Nutritional Disorder ?
Nutritional disorder is a malfunction in the physiology of a plant resulting in abnormal growth caused by either a deficiency or excess of mineral element(s). Nutrient deficiency or toxicity causes distinct plant symptoms, which can be used to diagnose and identify the disorder.

Mineral elements are grouped into those which are mobile and those which are immobile with some having graduation of mobility. Mobile elements are those which can be translocated from their original site of deposition (old leaves) to actively growing region of the plant (younger leaves) when a deficiency occurs. Consequently, the first symptoms of a mobile element deficiency will appear on the older leaves on the lower portion of the plant. The mobile elements include nitrogen, phosphorus, potassium, magnesium and zinc. On the contrary, when a shortage of the immobile element occurs, they are not retranslocated to the growing region of the plant, but remain in the older leaves where they were originally deposited. Deficiency symptoms therefore first appear in the younger leaves on the upper portion of the plant. The immobile elements are calcium, iron, copper, manganese, boron and sulphur.

Recognizing Symptoms
It is important to recognize the symptoms of nutrient deficiencies or toxicities as early as possible so that such problems can be rectified quickly. This is because once the symptoms are expressed in the crop, some reduction in yield is inevitable. However, it must be pointed out that although visual diagnosis of nutrient disorder may be the quickest method for diagnosing the causes of crop failure, it may not always be reliable as many non-nutritional factors can produce symptoms closely resemble that of nutritional disorders. Excessive pesticide spraying, for example, may cause leaf burn; pollution damage may cause wilting of leaves; and excessive sunlight or temperature may burn and dry plant tissue, particularly on the margins. In addition, nutritional disorders of an element itself could implicate the visual diagnosis by upsetting the plant's ability to accumulate other elements being deficient simultaneously. Boron deficiency, for example, can induce calcium deficiency and vice versa. Under such condition it is generally impossible to determine visually which elements are responsible for the symptoms. Nevertheless, visual diagnosis is an invaluable tool for a researcher to obtain a rapid preliminary assessment of the nutritional status of the plants.