PJB-2018-578
PERFORMANCE OF HYBRID MAIZE UNDER DIFFERENT LEVELS OF NITROGEN WITH CHANGING PLANT POPULATION
Shafiullah
Abstract
A field experiment was carried out on ‘Performance of hybrid maize under different levels of nitrogen with changing plant population’ at Palatoo Research Farm (PRF), The University of Agriculture Peshawar, Amir Muhammad Khan Campus Mardan during sumer 2015. The trail consist of two factors i.e. nitrogen levels (0, 70, 140 and 210 kg ha-1) and plant population (6, 8 and 10 plants m-2) arranged in a randomized complete block design. Maize hybrid seeds (CS-200) were sown at the rate of 30 kg ha-1 on16 June, 2015. Size of plot was 3 m ×3.5 m containing five rows 70 cm wider and 3 m long. The required plant population i.e., 6, 8 and 10 plants m-2 were maintained by thinning after emergence. Plant height, ear length and biological yield consistently increase with increments in N application from 0 to 210 kg ha-1. However, grains ear-1, thousand grain weight, grain yield, harvest index and N-use efficiency was found maximum with N application at the rate of 140 kg ha-1. Plant height and biological yield continually increase with increasing plant population from 6 to 10 plants m-2. Likewise, grains ear-1, thousand grain weight, grain yield and N-use efficiency was found maximum with 8 plants m-2. However, ear length not significantly affected by plant population of hybrid maize. It is suggested that maize yield should be enhance by using 140 kg N ha-1 with 8 plants m-2 in the agro ecological condition of Mardan.
To Cite this article:
Download
