27 Jul Site specific nutrient management (SSNM) for increasing fertilizer use efficiency and agriculture profitability
उर्वरक दक्षता और कृषि लाभप्रदता बढ़ाने के लिए साइट विशिष्ट पोषक तत्व प्रबंधन (SSNM) Agriculture is the major land use across the globe. The sustainability of our world depends fundamentally on nutrients. Most of the agricultural production system worldwide facing the insufficient access to nutrients still limits food production and contributes to land degradation. Adoption of precision technologies for more efficient use of resources and nutrients becomes more relevant in the current production scenario. Site-specific nutrient management (SSNM) involving use of inorganic or organic sources along with spatial and temporal soil variability, crop requirements of nutrients and cropping systems, soil capacity to supply nutrients, utilization efficiency of the nutrient and productive capacity of the varieties with improved NUE is the most ideal system that needs to be practiced to achieve the targeted goals. Principles of SSNM: SSNM is an approach to feed crops with nutrients as and when needed. The application and management of nutrients are dynamically adjusted to crop needs of location and seasons. There are five cardinal principles of SSNM: Principle 1- balanced fertilization based on crop requirements Principle 2- plant based estimation of root nutrient supplies Principle 3- need based fertilizer N management Principle 4- sustainable P & K management Principle 5- increasing profitability Important Features of SSNM: Optimal use of existing indigenous nutrient sources such as crop...