Light is the most important external factors that one factor. Which affect the growth of plants, farmers must pay attention to latest ชนืกับพืช control causing the most.The light affects the growth and development of plants, because light is an important factor in the creation of food or photosynthesis of plants with chlorophyll as an exposure to a power to change carbon dioxide and water into carbohydrates and oxygen.The light on the growth of plants.The light is related to the process of photosynthesis of plants. That is, the plant uses carbon dioxide in the air to the water source. When there is light catalysis. Chlorophyll in plants act as a precursor to this change of energy in the form of sugar and oxygen as a by-product.Light quality and light intensity range light.Light intensity (Light intensity), there is a direct factor in photosynthesis of plants, such as during the haze or cloud, in the rainy season, or steam in the air come to obscure the light from the Sun. Plants may show symptoms of stress-based growth. Results in atrophy, or loss of plants each require different light intensity, such as a cactus to high light intensity. Vanda orchids in rattan and Cattleya and Paphiopedilum saengkwa plants in the dark, etc.The range of light (Light duration), the length of light affect the growth of plants, such as Chrysanthemum will develop a tad out to get a range of no more than 13 hours of light per day, or if rice varieties of ISO in the summer. Rice will not blossom and titruang. The plant has long, light value (Critical day length) crisis, for example, the carry-forward, as well as with long light Chrysanthemum crisis 13.5 hours if light is received less than this chrysanthemum to blossom, we held a short day plant Chrysanthemum. This is the reason why we see a chrysanthemum nursery curtains, lanterns and light mask in greenhouses. The bulb is used to increase the range of light in case during the transplantation during early development. If the lighting conditions are not appropriate, such as the winter darkness speed. It is necessary to open fire to control do not give Chrysanthemum blossom. On the other hand, the light curtain to camouflage is used to reduce the range of light and stimulates the growth stopped, chrysanthemum blossom.The quality of light. The light that comes from a different origin, different quality for the most part, plants often need to light blue and red, but the proportion of light blue, red, per the appropriate depending on the type of plant is the primary. A simple example, such as cropping, using mesh, black and light blue mask, the growth rate is different, because the light through a mesh of black light to mask, light blue and red waves, rather than filtered through a mesh-light blue.The growth of the plant to several factors, most importantly the different nutrient-light water.Plants are living things have to grow and help life. The proper environment The State of the environment that affect the growth of plants, including:1. the soil is an important factor first. Appropriate soil on the growth of plants to be good soil to absorb water ruan Zui. There are many organic objects, but when grown in soil, soil deterioration, such as misalignment can all minerals. Need to improve soil fertility, including plough to loosen. Fertilizer application to crop rotation, etc.2. water is important for the growth of many plants. Water soluble mineral nutrients in the soil, helping to keep the roots sucking the food to different parts of the trunk, and the soil is moist. Fresh plant and operation of processes in a normal plant.3. nutrient or fertilizer is what makes plants grow better. Nutrients that is essential for the growth of plants, with 16 elements, but the elements that most plants and in the soil, there is often not enough nitrogen phosphorus and potassium nutrients of these must be a solution that is applied to the crops, and there must be enough quantity to cause the growth of the plants as well, but if there's not enough plant nutrients must be added in the form of fertilizers.4. There are several kinds of gas in the air, but the gas that plants need a lot of oxygen, carbon dioxide gas, and gas is used in photosynthesis to create both types of food and breathing this gas exists in the soil. In the plant, we should always keep the soil airy ruan sui. So the food is in the spaces between granules of soil with transfer.5. the lighting or the Sun. Plants need sunlight to be used in the creation of the food. If the lack of sunlight, plants are dwarf Gran is a pale yellow or white, and die in the end. Each type of plant needs light. some plants require sunlight, but some plants need light, becoming fainter.6. temperature has help in seed germination and plant growth. Some plants will see that love in a cold climate, but some plants, like the hot air. Bringing plants planted should choose the type that best fits the temperature changes according to the season. In each locality.The air gap is a gap between the clay grain portion is the presence of water. The rest will air. The air in the soil is important for the growth of plants because plants need oxygen in the breathing gas.The essential nutrient plants are nitrogen, phosphorus, potassium, calcium, 6 types, including magnesium, sulfur, iron, zinc, manganese, copper, boron, oxygen, chlorine, carbon di Li Nam module hydrogen plant nutrient that must be part of a more than is sometimes called the primary nitrogen, phosphorus, potassium, namely nutrient and nutrient that want to second. It is called the secondary nutrients: calcium. Magnesium and are Ma 20:00.
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