Nutrient Application in TPS Nursery

1. Nutrient Application in TPS Nursery • Media Preparation: Sterilized garden soil + Well rotten farm yard manure (FYM) in 1:1 ratio. Top most layer of bed (2-3 cm) is prepared from finely sieved FYM. Total height of seed bed =10 cm. • Sowing Depth= 0.5 cm and Distance between 2 rows = 10 cm • 10 gm Nitrogen, 30 gm Phosphorous and 10 gm Potash is applied to 100 kg of media. Out of this, 5 gm N, 8 gm P2O5 and 10 gm K2O per square meter of bed is applied as basal dose. • 4-5 foliar spray of 0.1% urea are given on alternate days after 15 days of sowing. .

2. Role of Nutrients: Nitrogen (N): Stimulates plant growth as a component of chlorophyll. Increases tuber protein content. Deficiency Symptoms: Reduced seedling growth and pale leaves at nursery stage. Excess: Delayed maturity and excessive shoot growth. Phosphorus (P) Encourages root and tuber development. Deficiency symptoms: Stunted plants growth, yellowing of older leaves, small dark green younger leaves. Deficiency Symptoms Of Nitrogen Deficiency Symptoms Of phosphorous

3. Role of Nutrients: Potassium (K): Stimulates leaf and tuber growth, increases resistance to diseases and improves tuber quality. Deficiency symptoms: Potassium deficiency retards nitrogen uptake, slow plant growth reduces quality and quantity of yield, poor disease resistance. Typical symptoms are necrosis of leaf margins, premature leaf senescence Deficiency Symptoms Of potassium

4. Role of Nutrients: Calcium (Ca): Calcium helps in cell division, cell elongation and cell wall development, nitrate uptake, enzyme activity and starch metabolism. Deficiency symptoms: stunted root growth, leaf & growing tip deformation and reduced quality. Typical symptoms are yellow curled chlorotic upper leaves and tip burns. Deficiency Symptoms of Calcium

5. Role of Nutrients: Magnesium (Mg): Magnesium acts as a carrier of phosphorus and constituent of chlorophyll. It is necessary for enzyme activation and nutrient uptake. Deficiency symptoms: Leaves get yellow-brown, wilt and die; Stunted plants. Excess: Results in reduced calcium uptake and symptoms similar to calcium deficiency. Deficiency Symptoms Of magnesium

6. Role of Nutrients: Sulphur (S): Sulphur application reduces soil pH and thus severity of common & powdery scab disease. Deficiency symptom: Stunted growth, reduction in leaf number. Leaves turn pale green or yellow. Iron (Fe): is important for chlorophyll synthesis. Deficiency symptoms: They first appear on the youngest leaves. Inter veinal chlorosis with green veins is observed. In severe deficiency, the entire leaf becomes chlorotic. Deficiency Symptoms Of Sulphur Deficiency Symptoms Of iron

7. Role of Nutrients: Manganese(Mn): It is necessary in photosynthesis. Deficiency symptoms: Black or brown spots on younger leaves; leaves yellowing. Boron (B): it has important role in cell wall formation, germination, elongation of pollen tube and metabolism & transport of sugars. Deficiency symptoms: Death of growing buds, plants bushy with shorter internodes. Leaves thicken and roll upward; leaf tissue darkens and collapses. Deficiency Symptoms Of Manganese Deficiency Symptoms Of Boron

8. . Role of Nutrients: Copper (Cu): Copper influences metabolism of nitrogen and carbohydrates. Deficiency symptoms: Young leaves become flaccid and wilted, terminal buds drop and leaf tips become necrotic. . Deficiency Symptoms of Copper