Application of Different Combination of Nitrogen, Phosphorus with Naphthalene Acetic Acid in Late Sown Wheat to Improve its Grain Yield
Application of Different Combination of Nitrogen, Phosphorus with Naphthalene Acetic Acid in Late Sown Wheat to Improve its Grain Yield
Muhammad Afnan Rabbi, Iqtidar Hussain*, Ejaz Ahmed, Muhammad Saad and Aitezaz Ali Asad Shahani
ABSTRACT
Delay in harvesting kharif crops such as cotton, rice and sugarcane, compel the growers to sowing late wheat and due to this wheat production becomes low. A foremost challenge for crop production is to increase its economic yields in an endurable manner by improving fertility of the soil. Many struggles have been done to enhance the wheat productivity since last decade. Use of synthetic plant growth regulators with nitrogen supply seems to be fruitful in this regard. So, an experiment was designed to assess the effect of various doses of N and P2O5 with combination of exogenous application of naphthalene acetic acid levels in late sown wheat in agro climatic conditions of Dera Ismail Khan, KP., Pakistan. Data registered on agronomic parameters i.e. plant height (cm), spike weight (g), spike length (cm), number of tillers, weight of 1000 grains (g), number of grains spike-1, biological yield (kg ha-1), yield of grain (kg ha-1), yield of straw (kg ha-1), productivity score and harvest index were significant in different doses of N and P2O5 with different levels of NAA. Maximum grain yield and yield contributing parameters were acquired from fertilizer dose of 180 N and 120 P2O5 and PGR level (50 ml NAA ha-1). Based on one year study, 50 ml ha-1 of NAA with optimum dose of N and P2O5 seemed to gain a maximum net return from wheat crop in agro-ecological condition of Dera Ismail Khan.
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