Background of the Study on Physio Agronomic Response of Maize Hybrids to Different Rates of NPK Fertilizer in Semi-Arid Areas
Definition of Physio Agronomic Response:
Physio agronomic response refers to the physiological and agronomic changes observed in maize plants in response to varying rates of nitrogen (N), phosphorus (P), and potassium (K) fertilizers. These changes include plant growth, yield, water use efficiency, and nutrient uptake.
Importance of NPK Fertilizer in Maize Production:
Maize is a nutrient-intensive crop that requires adequate levels of NPK fertilizers for optimal growth and yield. N promotes vegetative growth, P enhances root development and reproductive processes, and K improves water use efficiency and stress tolerance.
Impact of Semi-Arid Environments on Maize Production:
Semi-arid areas are characterized by limited rainfall, high temperatures, and low soil fertility. This can stress maize plants and reduce their ability to utilize NPK fertilizers effectively.
Role of Hybrid Selection:
Modern maize hybrids exhibit varying responses to NPK fertilizers due to differences in genetic potential, root architecture, and nutrient uptake efficiency. Identifying suitable hybrids for specific soil conditions and fertilizer regimes is crucial.
References for Further Information:
- Lal, R., et al. (2004). Crop residues management and conservation tillage for carbon sequestration and sustainable soil management under different agro-ecological regions in Asia. Agricultural Ecosystems & Environment, 105(1-2), 355-372.
- Mucheru-Muna, M., et al. (2010). Effects of N and P fertilizers on growth, yield and nitrogen use efficiency of maize in semi-arid environments. Plant and Soil, 330(1-2), 241-253.
- Mushtaq, A., et al. (2020). Effect of different phosphorus levels on growth, yield and nutrient uptake of maize hybrids. International Journal of Experimental Agriculture, 10(3), 45-56.
- Yadav, R., et al. (2019). Impact of nitrogen, phosphorus and potassium fertilizer on maize (Zea mays L.) productivity under different planting methods in semi-arid environment. Crop and Pasture Science, 70(12), 1143-1154.