Do you know what our body rely on to get the structure….? Yes they are Bones…. But the main nutrient behind making of bones is CALCIUM…..
In the same way plants too have structure and any part of plants depends upon the cell wall and calcium has its main role in construction of cell wall.
Thus Shelf life or keeping quality of every vegetable depends on the Calcium provided during the growth of that vegetable.
Calcium considered as secondary nutrients which need to be supplied in bit large quantities to all plants for the formation of cell walls and cell membranes, and it plays a vital role in soil structure.
Calcium is Immobile in both soil and plants. Due to the immobility of calcium in the soil and plant tissues, a continuous supply must be present for plants to access.
MODE OF ACTION
Calcium is only xylem mobile, meaning it can only move up the plant, and once in place, it cannot be remobilized and moved to new developing tissues. Young developing tissues such as growing points and fruiting bodies tend to be affected the most once soil reserves are depleted. Because of calcium’s low mobility in the plant, we can see calcium deficiency even in soils with high calcium levels.
Symptoms of deficiency include death of growing points, premature shedding of blossoms and buds, tip burn, blossom end rot in tomato and bitter pit. Without proper levels of calcium, shelf life of fruits such as cantaloupes and tomatoes can be reduced significantly.
Soils or growing media with adequate amounts of calcium tend to be more friable and have better water infiltration properties. This is because calcium displaces sodium in the soil, and with adequate leaching irrigations, it can help improve overall soil quality.
Calcium deficiency is easily managed through proper nutrition. Adding a high quality calcium source to a foliar nutritional program will help mitigate deficiencies. Because of its limited movement in the plant, adding calcium during critical development stages such as fruiting can vastly improve fruit quality, quantity and overall plant health.
Apply 3-4 teaspoons of calcium per plant once in 10 days interval for adequate calcium supply starting from vegetative stage till fruiting stage
Calcium is taken up from the soil solution as Ca2+ ion through plasma membrane channels expressed in roots. Calcium uptake by the plant is passive and does not require energy input. Calcium mobility in the plant takes places mainly in the xylem, together with water. Therefore calcium uptake is directly related to the plant transpiration rate
Adequate supply of calcium at proper stages will help in getting good quality fruits and plants have a proper structure. As a result, one can harvest tomato fruits without blossom end rot. Even good quality fruits in chilli and brinjal.