klintan

1. H. HERBICIDE INJURY

2. • 2,4-d injury on Tomatoes

3. • Glyphosate injury on Tomatoes

4. • Rimsulfuron injury on Tomatoes

5. • herbicide damage on leaves of oak
(Quercus)

6. • Thifensulfuron-methyl injury on Tomatoes

7. • Cupped distorted leaves on maple (Acer) caused by
herbicide damage

8. • Herbicide injury on apple leaves (Malus)

9. I. HAIL INJURY

10. • Hail damage to tomato

11. J. LIGHTING

12. • Bark blasted off a bald cypress (Taxodium) by lighting

13. • Circular pattern of lightning damage

14. • Signs of lightning injury on tomato plant

15. • Lighting injury symptoms in tomato stem

16. K. WIND INJURY

17. • Wind injury

18. L. OTHER IMPROPER
AGRICULTURAL PRACTICES

19. • Scar of tree trunk from use of a weed whip

20. • Fresh mechanical wound with resin.

21. • Concentric and radial cracking

22. Penyakit abiotik
(kekurangan unsur hara)

23. PENYAKIT TANAMAN AKIBAT
KEKURANGAN HARA
Nutrients essential to plant growth
Element Chemical symbol form(s) taken up by plant
Macronutrient
Nitrogen N NH4
+, NO3
-
Phosphorus P H2PO4
-, HPO4
2-
Potassium K K+
Calcium Ca Ca2+
Magnesium Mg Mg2+
Sulfur S SO4
2-
Micronutrient
Iron,Zinc,Maganese,Copper,Boron,Molybdenum,Chlorin
Silicon, Sodium, Cobalt, vanadium

25. NITROGEN
ROLE IN PLANT NUTRITION: Amino
acid synthesis. Protein, coenzymes, nucleic
acid formation. Chlorophyll and ATP
synthesis
DEFICIENCY SYMPTOMS :Lack of
growth or stunted growth. General yellowing
of foliage, older leaves first. Loss of leaves
under severe deficiency. Purplish colouration
due to accumulation of anthocyanin
pigments

26. Nitrogen deficiency

27. Nitrogen deficiency

28. PHOSPHORUS
• DEFICIENCY SYMPTOMS: Reduced
growth. Production of dark green foliage.
Reduced tillering in cereals. Reddening or
yellowing of leaf margins and necrosis of
older leaves. Reduced fruit quality and
storage potential
• ROLE IN PLANT NUTRITION Energy
transfer. Formation of nucleic acids.
Protein synthesis. Cell membrane
component

29. Phosphorus deficiency

30. Note the stunted plant
with the purple leaves.Severe deficiencies of phosphorus are usually
characterized