Nitrogen deficiency on orange - Citrus

Change crop

Nutrients

Citrus - Shedding of plant parts

Symptoms
The older leaves are pale green to yellow and abscise. The life of a leaf can be shortened from 1-3 years to 6 months. The leaf veins have a clear colour tending to white.

Reasons
Nitrogen deficiency Sulfur deficiency causes similar symptoms, but it begins at the younger leaves and the veins are usually green.

Nitrogen deficiency on orange made worse by

Low or high pH soils
Sandy or light soils (leaching
) Low organic matter
Drought conditions
High rainfall (leaching) or heavy irrigation
Addition or high levels of non-decomposed organic matter/manure (eg straw)
Fast growing crops

Nitrogen is important for

Foliage lusher and greener
Shoot growth vigour increased
Fruit set/crop load increased
Yield is increased
Juice quantity and quality improved (acidity and soluble solids increased)

Yara recommended fertilizers for Nitrogen

YaraLiva CALCINIT

Citrus: Apply YaraLiva CALCINIT @25kg/acre (0.8 kg/day/acre) at fruit set stage (46-75 days) @30kg/acre (0.5kg/day/acre) at fruit development stage (76-135 days)

YaraLiva NITRABOR

Citrus: Apply YaraLiva Nitrabor @ 250-300 g/plant(soil application) at Pre-flowering stage. Apply YaraLiva Nitrabor @ 200 -250 g/plant (soil application) at Flowering to fruit setting stage.Apply YaraLiva Nitrabor @ 200 -250 g/plant (soil application) at When fruit is around 2 cm in size stage.

YaraMila COMPLEX

Citrus: Apply YaraMila Complex @ 400 grams/plant (soil application) at Pre-flowering stage. @ 250 grams/plant (soil application) at Flowering to Fruit Setting stage. @ 500 grams/plant ( Fertigaton) at Pre - Flowering Stage.

YaraTera KRISTA K

Citrus: Apply KRISTA K (Soil Application) @10g/litre water (2 Foliar sprays at 15 days interval) in stage when fruit is around 2 cm in size. Apply KRISTA K (Ferigation) @25kg/acre (1 kg/day/acre) at Flowering Stage (20-45 days) @50kg/acre (0.8kg/day/acre) at Fruit Development Stage (76-135 days)

YaraTera KRISTA MAP

Citrus: Apply KRISTA MAP (Fertigation) @ 25kg/acre (1 kg/day/acre) at Flowering stage( 20-45 days)

DELTASPRAY 19-19-19

Citrus: Apply DELTASPRAY (Fertigation) @ 45kg/acre (1.5 kg/day/acre) at Fruit Set Stage (46-75 days)