ਕਣਕ ਉੱਪਰ ਗਰਮੀ ਦਾ ਅਸਰ ਹੋਣ ਤੋਂ ਕਿਵੇਂ ਬਚੀਏ wheat crop heat stress management скачать в хорошем качестве

ਕਣਕ ਉੱਪਰ ਗਰਮੀ ਦਾ ਅਸਰ ਹੋਣ ਤੋਂ ਕਿਵੇਂ ਬਚੀਏ wheat crop heat stress management

#wheat #crop #punjab #npk Managing heat stress in wheat, particularly terminal heat stress.  during grain filling), involves timely sowing, selecting heat-tolerant varieties, proper irrigation, and nutrient management. Key strategies include planting in mid-November, applying potassium nitrate or potassium-based fertilizers, maintaining soil moisture with light irrigations, using zero tillage, and employing mulch to keep the root zone cool.  Key Heat Stress Management Strategies: Timely Sowing & Cultivar Selection: Early Sowing: Avoid late planting to ensure the grain-filling stage does not coincide with high temperatures in March/April. Heat-Tolerant Varieties: Use varieties bred for tolerance to high temperatures. Irrigation and Water Management: Critical Irrigation: Provide light and frequent irrigations, specifically at the booting, anthesis, and grain-filling stages, to manage soil moisture and reduce canopy temperature. Efficient Methods: Use sprinkler or drip irrigation for better water use efficiency. Nutrient and Chemical Management: Potassium (K) Fertilization: Apply Muriate of Potash ( Potassium Nitrate ( ) to help maintain plant osmotic balance and protect grain filling. Exogenous Protectants: Foliar spray of nutrients like Zinc (Zn) and growth regulators like salicylic acid, thiourea, or calcium chloride can alleviate stress. Cultural Practices: Conservation Agriculture: Adopt zero-tillage or reduced tillage, which helps in retaining soil moisture and reducing soil temperature. Mulching: Use crop residues as mulch to maintain a lower, more stable soil temperature. Residue Management: Retaining surface residues helps lower the soil temperature compared to conventional tillage.  Springer Nature Link +8 Impact of Heat Stress on Wheat: Heat stress, especially above   for consecutive days during grain filling, accelerates maturity and reduces nutrient translocation to the grains, leading to reduced grain size, weight, and overall yield