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Rice Crop Disorders
A Presentation To IPM Course/FFS Participants
By
Mr. Allah Dad Khan
Provincial Coordinator IPM KPK For MINFAL
Pakistan
Alkalinity
Alkalinity impairs plant growth by obstructing root development and restricting water supply to the roots. This leads to various nutrient deficiencies
Aluminum toxicity
Aluminum toxicity in soil inhibits the growth of plant shoots by causing nutrient deficiencies in Magnesium, Calcium, and Phosphorus
Herbicide toxicity
Herbicide toxicity leads to poor crop emergence, root damage, and possibly whiteheads
Nitrogen Deficiency
N deficiency affects all the parameters contributing to yield: be familiarized with the symptoms and prevent it
Too Much nitrogen
When plants receive too much nitrogen, they become more attractive to insects and diseases
Phosphorus deficiency
Phosphorus deficiency affects tillering, root development, early flowering, and ripening
Potassium deficiency
Potassium deficiency affects photosynthesis. Affected crops are usually short and discolored
Sulphur Deficiency
Sulfur deficiency affects chlorophyll production, protein synthesis, and plant function and structure
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
Boron Deficiency
Boron toxicity is a rare condition that usually occurs during dry season when there is high boron content in groundwater
Calcium Deficiency
Calcium deficiency results in impaired root function. It can also lead to Iron toxicity
Copper Deficiency
Copper deficiency affects photosynthesis and respiration. This can lead to sterility of spikelets and many unfilled grains
Iron Deficiency
Iron deficient crops are not able to produce enough amounts of chlorophyll. Infected plants are usually yellow in color
Iron Toxicity
Iron toxicity can occur when large amounts of iron accumulate after flooding. It targets the roots and causes leaves to bronze and dry up
Magnesium Deficiency
Magnesium deficiency affects several enzyme activities in plants and may reduce grain quality
Manganese Deficiency
Manganese toxicity affects the plants' metabolic processes which can lead to sterility in plants
Zinc deficiency
Zinc deficiency affects several biochemical processes in the rice plant, thus severely affecting plant growth