Controlling Neck/Sheath Blast in Paddy Crop
Paddy crop plays a crucial role in the world’s food security. It is the staple food in many countries, and there’s a growing demand for it every year. However, one of the challenges when growing paddy is the incidence of neck/sheath blast. It is a fungal disease that can reduce the yield and quality of the crop. Here are some ways to manage and control neck/sheath blast in paddy crop.
1. Use resistant varieties
Planting resistant varieties is the most effective and eco-friendly way to control neck/sheath blast in paddy crop. Resistant varieties can withstand infections and reduce the spread of the disease. They are usually developed by breeders through genetic selection, and they have been tested in various environments. Before planting, check the suitability of the variety to the local climate and soil conditions.
2. Proper irrigation
Inadequate or excessive irrigation can promote the growth and spread of neck/sheath blast. It is important to maintain the right moisture level in the field by following a recommended irrigation schedule. The frequency and volume of irrigation should be adjusted according to the crop stage and seasonal rainfall.
3. Balanced fertilization
Deficiencies or excesses of nutrients can weaken the paddy crop and increase its susceptibility to neck/sheath blast. A balanced fertilization program is essential to provide the necessary nutrients to the crop. A soil analysis can determine the nutrient status of the field and help in selecting the right fertilizers.
4. Timely application of fungicides
Fungicides can be used as a preventive or curative measure against neck/sheath blast in paddy crop. A preventive application is done before the symptoms appear, while a curative application is done after the symptoms are visible. Fungicides should be applied at the recommended dosage and timing, and with proper safety precautions.
5. Crop rotation and tillage
Crop rotation and tillage practices can reduce the risk of neck/sheath blast in paddy crop. By alternating the crop with a non-host plant or changing the planting time, the fungal spores will have less opportunity to infect the paddy. Tillage practices can also bury the infected residues, which can reduce the carryover of the disease to the next crop.
In conclusion, neck/sheath blast is a fungal disease that can affect the yield and quality of paddy crop. Proper management and control measures such as planting resistant varieties, proper irrigation and fertilization, fungicide applications, and crop rotation and tillage practices can significantly reduce the incidence and severity of the disease.