The fertilization of greenhouse crops Greenhouses are aids in the cultivation of crops. They are very effective in extending the growing seasons of certain crops and crop protection of several adverse conditions caused by weather conditions and predators. Improve the capacity of nature and man to grow crops. In fact, the greenhouses have become effective tools for man to grow crops properly. However, the growth and development of crops are still in the hands of the grower. There are many factors to consider in maintaining a greenhouse. Temperature, humidity, ventilation and shade are some of the factors that require attention to driving a greenhouse. One of the most important factors in maintaining crops inside a greenhouse is fertilization. Maintaining the proper amount of nutrition needed to sustain successful growth and development of crops within a greenhouse. Often, greenhouse crops are classified as heavy feeders. heavy feeders is generally defined as crops that require large amounts of fertilizer. However, knowing that the crops are heavy feeders is not enough. If you know the relationship of the components involved in fertilizer is as important as knowing the amount to be applied to crops. Recent research has shown that the nitrate nitrogen and ammonia balance affect plant growth. In the State of Texas, growers are advised to use less than 50% of nitrogen in ammonium form. High amounts of ammonium, in turn can cause burning of foliage due to toxicity. Application Most greenhouse crop growers today use a liquid feed program to be able to supply nutrients to crops. This type of program supply of nutrients can be supplemented by the slow release granular fertilizer to crops. The frequency of fertilizer application can influence the growth of plants as well. Very often, it is important to be able to provide different nutrients during peak periods of vegetative growth and reproductive growth of crops. It is generally accepted that the best fertilizer application system is a constant one. feeing constant can be modified to suit the needs of plants. High soluble salts can be food for plants of each application. The nutrient balance must be maintained by the farmer to avoid the significant deficiencies and toxicities in plants. Selection Many complete fertilizers provide nutrients that are needed by plants. These fertilizers contain nitrogen, potassium and phosphorus, which are the essential elements that are necessary for crops. There are also fertilizers that are tailored to different cultures. Nutrients Here are some key facts about the different basic elements that are necessary for greenhouse crops: Nitrogen-There are many different sources of nitrogen that can be used to provide nutrient for plants. Ammonium nitrate, potassium nitrate and calcium nitrate are some of the sources of nitrogen. If one is to supply nitrogen to crops, should not supply more than 50% of it in the form of ammonium. Potassium-This is an essential element in the use of water plants. The most common source of potassium in plants is the potassium nitrate. Phosphorus Phosphorus is needed for plant growth. Usually present in large quantities. However, you must always be cautious in the supply of phosphorus in large quantities because they can cause other nutrients insoluble. This will make it impossible for these nutrients absorption by plants. The most common supply of phosphorus is through phosphoric acid or super phosphate. Other nutrients There are other nutrients that are needed to provide complete nutrition to crops. Plants need calcium, magnesium, sulfur, iron, zinc, copper, manganese, boron, molybdenum and chlorine. Some are provided through the medium, but the others are provided through supplementary application. Both primary and secondary nutrients should be incorporated into the feeding program.There are commercial mixtures that can be tailored to the needs of crops grown in the greenhouse. One should be able to control the amount and balance of different nutrients supplied to crops in greenhouses. Only through adequate nutrition to the plants to achieve optimal growth and development potential. quality crops can be harvested if you know how to get around the nutritional needs of crops.