Azarian Journal of Agriculture
Volume:5 Issue: 5, Oct 2018

This research was conducted at Applying Research Field, Faculty of Agriculture, Namık Kemal University, Tekirdağ in 2016. The experiment was conducted by Augmented Experimental Design consisting of three blocks of which every block had nineteen plots. In the study, 39 genotypes were obtained from the United States Department of Agriculture (USDA), and it was aimed to determine the superior ones of our local cultivars. For this purpose in the research, days to maturity, plant height, branch number, capsule number, capsule diameter, number of seeds per capsule, 1000 seed weight, hull content, seed yield, oil content, oil yield and fatty acid composition were investigated. According to the results, the capsule diameter ranged from 1.57 to 2.88 cm, number of seeds per capsule ranged from 2.67 to 76.25, 1000 seed weight ranged from 27.00 to 55.79 g, hull content ranged from 34.73 to 60.93%. In addition to, the most important breeding aims are oil content which ranged from 15.58 to 37.42% and seed yield ranged from 147.90 to 2349.90 kg ha-1. According to the study results, yield and yield characteristics of 39 genotypes were compared with 6 local cultivars and 10 genotypes superior to these were determined. These genotypes will be used as material in future breeding studies and will be tried to develop higher lines of seed yield and oil content.

Wheat is considered as one of the main agricultural cereals worldwide, used in human and animal feed. The goal of this research was to investigate the pivotal impact of using different sources and rates of nitrogen fertilizer on the productivity of wheat cultivars in two growing seasons 2015/2016 and 2016/2017 to find out alternatives for wheat farmers. A strip-split plot experimental design was used with three rates of nitrogen fertilization (119, 166 and 240 kg ha-1), three nitrogen sources (ammonium sulphate, ammonium nitrate and urea) and three wheat cultivars (Giza 168, Sakha 93 and Sakha 94). A number of variables such as number of grains spike-1, 1000-grain weight, number of spikes m-2, grain yield, harvest index, percentage of apparent recovery N of fertilizer and agronomic NUE were assessed. Results showed that Sakha 94 was superior than Giza168 and Sakha 93 in all yield-related traits. N fertilizer rate had a more consistent effect on yield-related traits. Applied 240 kg N ha-1 resulted in increased number of grains spike-1, 1000-grain weight as well as number of spikes m-2 in both seasons furthermore grain yield and harvest index, % apparent recovery N of fertilizer and agronomic NUE declined with increment of N rates. The application of sources of N fertilizer seems to play a pivotal role. Application of ammonium sulphate resulted in positive impact on all traits than other sources of nitrogen. It was concluded that grain yield enhanced by Sakha94 cultivar with 240 kg N ha-1 of ammonium sulphate.

A field experiment was conducted at the Agronomy Research Field, Department of the Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh during Aman season (June to December) 2016 to evaluate the growth, yield and yield attributes of aromatic rice (cv. Tulshimala) under the fertilization of cowdung (organic manure) and zinc (micronutrient). The application of different levels of cowdung and zinc fertilizers considerably increased the number of total tillers hill-1, number of productive tillers hill-1, panicle length, test weight (g), grain yield hill-1 (g), straw yield hill-1 (g), grain yield (t ha-1), straw yield (t ha-1), and biological yields over control. However, the treatment combination of CD1Zn2 i.e. 10 t ha-1 cowdung and 12 kg ha-1ZnSO4 along with other recommended doses of inorganic fertilizers produced the highest grain yield (2.79 t ha-1) and straw yield (5.80 t ha-1) over other treatments.

A study was performed to discern the effect of tillage, residue and nutrient management on yield attributes of rice in Rampur, Chitwan, Nepal. Rice var. Ramdhan was cropped in three replications along with eight treatments which were evaluated under strip-split plot design. Tillage treatments were CT (Conventional tillage) and NT (No tillage), residues treatment were RK (Residue kept) and RR (Residue removed) while nutrient management treatment were FD (farmer’s doses with 5Mt ha-1 of FYM + 50:23:0 NPK kg ha-1) and RD (recommended dose with 100:60:30 NPK kg ha-1)). Method of tillage, residue management and nutrient management significantly influenced the effective tillers per meter square. However, tillage and residue management practices did not affect panicle length and 1000-grain weight. The highest average grain yield (3.66 t ha-1) was obtained under no tillage which was statistically superior over conventional tillage (2.28 t ha-1). The grain yield obtained under residue kept (3.72 t ha-1) being at par was significantly superior over residue removed (2.22 t ha-1). Rice grain yield was significantly (p<0.05) higher on recommended dose of fertilizer (4.53 t ha-1) than the farmer’s dose of fertilizer (1.41 t ha-1). The yield attributes were found maximum under no tillage, residue kept and recommended doses of fertilizer. Adoption of cultivation practices involving no tillage, residue integration and recommended doses of fertilizer will help to improve soil properties and yield attributes of rice for sustaining productivity and protecting the environment.