What causes Khaira disease?

What causes Khaira disease?

The combined information from field obser- vations and chemical analysis of the plant and soil samples strongly suggests that both Khaira and Hadda diseases are due to zi! ic deficiency, and their occurrence is associated with high soil pH or calcareous soil. transplanting.

How is Khaira disease controlled?

The disease, caused by Zn deficiency, is associated with heavy but poorly drained soils in India. Treatment of rice seed with 0.4% ZnSO4 before sowing or of seedlings before transplanting gives control. Spraying with 0.4% ZnSO4+2% urea on the appearance of the symptoms is useful.

Who is reported Khaira disease?

During his 14-year tenure at Pantnagar, Nene’s work on “Khaira Disease of Paddy” was recognized internationally because the cause of disease was established to be zinc deficiency in field rice, which was the first such report in the world.

What is Akiochi disease?

Abstract. Rice is affected by the disease Bruzone (Brand, Akiochi) only in certain soils and only in certain years. The soils inclined to the disease are heavy, fixed, acidic ones, having no calcium in the top soil, and with a high exchangeable and hydrolytic acidity, total-N (O.

In which disease do green air stage symptoms appear?

The signs and symptoms of pneumonia may include: Cough, which may produce greenish, yellow or even bloody mucus. Fever, sweating and shaking chills. Shortness of breath.

Which disease is caused by zinc deficiency in paddy?

Zinc Deficiency (Hudda disease – Pakistan, Khaira disease – India). Rice is sensitive to Zn deficiency; it is the most widespread micronutrient disorder in rice. Zinc availibility decreases after flooding.

What is bacterial leaf blight of rice?

rice bacterial blight, also called bacterial blight of rice, deadly bacterial disease that is among the most destructive afflictions of cultivated rice (Oryza sativa and O. glaberrima). In severe epidemics, crop loss may be as high as 75 percent, and millions of hectares of rice are infected annually.

What is the symptom of Khaira disease?

Leaves develop yellow color and then brown spots are formed. Khaira disease in the plants can be cured by applying the zinc sulphate solution to the leaves of the plants. The correct answer is (A) Zinc deficiency.

What is iron toxicity in rice?

Iron toxicity is a syndrome of disorder associated with large concentrations of reduced iron (Fe2+) in the soil solution. It only occurs in flooded soils and hence affects primarily the production of lowland rice.

What is reclamation disease?

: a copper-deficiency disease of many crops and especially of cereals occurring chiefly on newly reclaimed peat land and characterized by chlorotic leaf tips and failure to set seed.

What is viral pneumonia symptoms?

The symptoms of viral pneumonia usually develop over a period of several days. Early symptoms are similar to influenza symptoms: fever, a dry cough, headache, muscle pain, and weakness. Within a day or two, the symptoms typically get worse, with increasing cough, shortness of breath and muscle pain.

What is the cause of Khaira disease in rice?

The deficiency of zinc in rice causes khaira disease. They existed as smaller patches in the nursery or might be observed in the main-land of rice. Khaira disease symptoms are. The leaves are discoloured. Growth of the plants is limited and plants stunted. The midrib becomes chlorotic means contaminated with the chlorine.

Why are the leaves on my rice turning yellow?

The deficiency of zinc in rice causes khaira disease. They existed as smaller patches in the nursery or might be observed in the main-land of rice. Khaira disease symptoms are The leaves are discoloured.

Which is the best way to treat Khaira disease?

The control and treatement methods of Khaira disease are listed below:- khaira disease of rice can be controlled by spraying ZnSo4 in nursery bed of rice before transplanting in main field. During transplantation-ZnSo4 should be applied at the rate of (25-30)kg per hector of land.

How to tell if a rice plant has blight?

Seedling stage – blight; in grown up plants brown, round to oval isolated spots on leaves, leaf sheaths, sometimes on grains, glumes and on the neck region which becomes brown or greyish brown as against blackening in blast; tissues less weakened; ear never breaks.

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