Recommended
More Related Content
What's hot
What's hot (20)
Similar to Nutrient Deficiency Symptoms of Rice (Oryza sativa)
Similar to Nutrient Deficiency Symptoms of Rice (Oryza sativa) (20)
Recently uploaded
Recently uploaded (20)
Nutrient Deficiency Symptoms of Rice (Oryza sativa)
- 2. Nutrient Deficiency Of Rice (Oryza sativa L.)
- 4. Nitrogen (N) Deficiency Older leaves or whole plants are yellowish green old leaves and sometimes all leaves become light green & chlorotic at the tip and entire field may appear yellowish.
- 5. Phosphorus (P) Deficiency Stunted plants, reduced tillering, older leaves are narrow, short, very erect, and has a "dirty" dark green color & stems are thin and spindly and plant development is retarded.
- 6. Potassium (K) Deficiency Dark green plants with yellowish brown leaf margins or dark brown necrotic spots appearing first on the tip of older leaves & yellow stripes may appear along leaf interveins and lower leaves may bend downward.
- 7. Boron (B) Deficiency Lack of Boron affects the plant's biological processes. This can cause rolled leaves, death of growing points, reduced plant height, and even inability to produce panicles.
- 8. Iron (Fe) Deficiency Interveinal yellowing and chlorosis of emerging leaves, whole leaves become chlorotic and then very pale and entire plant becomes chlorotic and dies.
- 9. Copper (Cu) Deficiency Chlorotic streaks on either side of the midrib, dark brown necrotic lesions on leaf tips, bluish green and chlorotic streaks near the leaf tip and rolling of new leaves.
- 10. Calcium (Ca) Deficiency Calcium (Ca) deficiency impairs root function and predisposes plant to iron toxicity. It causes stunting and death of growing points.
- 11. Magnesium (Mg) Deficiency Orange-yellow interveinal chlorosis on older leaves and plants pale-colored with interveinal chlorosis, first appearing on older leaves and later on younger leaves.
- 12. Manganese (Mn) Deficiency Pale grayish green interveinal chlorosis spreads from the tip to the leaf base, necrotic brown spots develop later and leaf becomes dark brown and newly emerging leaves are short, narrow, and light green.
- 13. Sulfur (S) Deficiency Yellowing or pale green color of the whole plant, young leaves are chlorotic or light green colored with the tips becoming necrotic, lower leaves does not show necrosis and leaves are paler yellow.
- 14. Zinc (Zn) Deficiency Dusty brown spots on upper leaves of stunted plants, leaves lose turgor and turn brown as brown blotches and streaks appear on lower leaves, enlarge, and coalesce and leaf blade size is reduced.
- 15. “ Agriculture is our wisest pursuit, because it will in the end contribute most to real wealth, good morals, and happiness. ” - Thomas Jefferson
- 16. Image source: http://www.knowledgebank.irri.org/training/fact-sheets/nutrient-management/deficiencies-and-toxicities-fact-sheet Reference: Dobermann A, Fairhurst T. 2000. Rice: Nutrient disorders & nutrient management. Handbook series. Potash & Phosphate Institute (PPI), Potash & Phosphate Institute of Canada (PPIC) and International Rice Research Institute. 191 p.
Editor's Notes
- Nutrient Deficiency Symptoms in Rice Symptoms of nutrient deficiency or toxicity are not always readily apparent or obvious in a growing crop. Often, more than one nutrient or growing condition may be involved. In many field situations, when a deficiency is identified, it may be too late for treatment to correct the problem in the current crop. The following slides present some photos and brief information describing symptoms of nitrogen (N), phosphorus (P), potassium (K), and zinc (Zn) and other deficiencies in rice.
- RETARDED – delay , slow
- plants pale-colored with interveinal chlorosis first appearing on older leaves and later on younger leaves. as deficiency becomes more severe
- Turgor – rigidity of the cell , inability to forced out of shape and to be changed. Blotches – spot or mark Coalesce – form a mass or whole