Or deficient nutrient deficiency is the lack of materiality ( material ) in the form of food for the plants to establish his life . Crop nutrient needs will vary depending on the types of plants , there are plants that gluttonous foods and those that are ordinary. If the nutrients in the soil are not available then plant growth will be stunted and production fell . Farmers may not check the nutrient content of the soil at any time to determine the availability of nutrients , one attempt is to know the symptoms of nutrient deficiency in plants .
Nutrient deficiency symptoms in plants , namely :
1 . Deficient Nitrogen ( N ) , symptoms of nitrogen deficiency is characterized by the color light green leaves turn yellow and then become perfect , dead leaf tissue and dried maroon . Fruit shape is not perfect , small , yellowish and cook ahead of time . Handling of nitrogen deficiency is to add chemical fertilizers in the form of urea ( N = 46 % ) , ZA ( N = 21 % ) , KNO 3 , NPK and foliar fertilizer high N content .
2 . Deficient phosphorus ( P2O5 ) , phosphorus deficiency symptoms marked in the bones , especially the underside of leaves purplish red leaves , leaf curling and twisting. The edges of leaves , branches and stems are also purple . This leads to inhibition of root system and fertilization . Handling of phosphorus deficiency is to add chemical fertilizers SP36 ( P = 36 % ) , NPK fertilizers MKP and high leaf P content .
3 . Deficient Potassium ( K2O ) , symptoms of potassium deficiency is characterized by leaf mengerutnya especially old leaves though uneven , and the edges of the leaves turn yellow and then to brown spots . This leaf spot eventually fall , so the leaves were ragged and eventually die . Imperfectly formed fruit , a small , poor quality and could not save it . Handling of potassium deficiency is to add chemical fertilizers KCl ( K = 52 % ) , NPK fertilizers MKP and high K content of the leaves .
4 . Deficient Sulfur ( S ) , sulfur deficiency symptoms are marked with green leaf color fades ( chlorosis ) , turned into a light green , sometimes seem uneven , yellow or whitish . Stunted plant growth , dwarf , short-trunked , and skinny . Handling of elemental sulfur deficiency is to add chemical fertilizers ZA ( S = 20 % ) , Phonska ( S = 10 % ) as well as foliar fertilizer that contains elements of S.
5 . Deficient calcium ( Ca ) , symptoms of calcium deficiency is characterized by growth stalled and dead buds , plant growth is weak and miserable , young leaf edge chlorosis experience , many young fruit loss and prematurely ripe , fruit color is less than perfect . Way of handling the elements calcium deficiency is to add dolomite lime ( Ca = 38 % ) , calcium carbonate ( Ca = 90 % ) and calcium content of Ca fertilizer 80-99 % .
6 . Magnesium deficient ( Mgo ) , symptoms of magnesium deficiency is characterized by an old leaf that originally turned into a yellowish green and fresh looking pale . Among the bones of leaf chlorosis occurs , changing the color yellow , there are patches of brown , while the veins remain green . Way of handling the element magnesium deficiency is to add chemical fertilizers Kieserite , limestone dolomite ( Mg = 18 % ) as well as foliar fertilizer that contains elements of Mgo .
7 . Micro deficient element Iron ( Fe ) , iron deficiency symptoms are highlighted in yellow on young leaves , stunted plant growth , falling leaves , dieback , bone green leaves turn yellow and then white , as if suspended plant growth .
8 . Deficient Boron ( B ) , boron deficiency symptoms characterized by chlorotic leaf margins suffered from lower leaves then dry up and eventually die . On branching plants , plant segment retracts , hollow stems , branches grow parallel formation side by side .
9 . Deficient Copper ( Cu ) , characterized by symptoms of copper deficiency kebirubiruan green leaves , leaf tips are found unevenly wilt , chlorosis sometimes occurs even though the network is not dead , stunted plant growth and failed to form flowers .
10 . Deficient Manganese ( Mn ) , symptoms of manganese deficiency is characterized by stunted plant growth , yellowish or reddish leaves , leaf tissue in some dead spots and seeds are formed is not perfect .
11 . Deficient Zinc ( Zn ) , zinc deficiency is characterized by symptoms of old leaves yellowish or reddish , hollow leaves , dry out and eventually die .
12 . Molibedenum deficient ( Mo ) , molybdenum deficiency is characterized by symptoms of leaf color fading , wrinkles , dry , as if suspended plant growth and eventually die . Handling of micronutrient deficiencies is to add high organikyang fertilizer , liquid organic fertilizer for subsequent fertilization and spraying foliar fertilizer with micro content complete .
Sources : Various Sources
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