| dc.description | All the outset, the author first praises the Almighty Lord Allah who created and controls
everything in the nature and by whom he was able to complete the present research work.
The author is pleased to express his respect and the deepest sense of gratitude and immense
indebtedness to his supervisor Professor Dr. Md. Shahadat Hossain Khan, Department of Soil
Science, Faculty of Agriculture,Hajee Mohammed Danesh Science and Technology University,
Dinajpur, Bangladesh for his help and guidance, valuable suggestion, encouragement and
constant inspiration throughout the research programmed and in preparing this thesis.
The author also wishes to express his gratefulness to the respect co-supervisor Associate
Professor Md. Shah Moinur Rahman, Department of Soil Science, Faculty of Agriculture,
Hajee Mohammed Danesh Science and Technology University, Dinajpur, Bangladesh who
provided necessary facilities for conducting the research work.
The author express his heartfelt thank and regards to the honorable teachers of the Department
of Soil Science, Faculty of Agriculture, Hajee Mohammed Danesh Science and Technology
University, Dinajpur, Bangladesh for their valuable teaching, sympathetic co-operation,
helpful suggestion and inspiration throughout the period of this study.
The author expresses his thanks to all the staff members of the Department of Soil Science,
Faculty of Agriculture, Hajee Mohammed Danesh Science and Technology University,
Dinajpur for their conducting the experiment.
The author humbly desires to acknowledge his heartfelt appreciation and profound thanks to
all his friends and classmates for their helps throughout the study period.
The author express the deepest sense of gratitude to his parents, brother, sister and other
relatives, who had always sacrifice their happiness for his and rendered financial support and
encouragement throughout his academic career.
The author is also grateful to many others whose names do not appear here but helped him in
the experiment field and in the laboratory during the study period. | en_US |
| dc.description.abstract | A field experiment was conducted at the research field Department of Soil Science, Faculty of
Agriculture, Hajee Mohammed Danesh Science and Technology University, Dinajpur,
Bangladesh during the period from December 6, 2013 to April 4, 2014. The experiment was
conducted to find out the “effect of low fertilizer application on yield of wheat cultivars of
Bangladesh”. The treatment used for the experiments consist of eleven modern wheat verities viz.
with eleven types of practices and to evaluate the suitability of wheat cultivation with inorganic
fertilizer application. The experiment was laid out following Randomized Complete Block
Design (RCBD) with three replications. The treatment of the experiment involve were T1
(Control); T2 (25% of the recommended dose of fertilizer) ;T3 (50% of the recommended dose of
fertilizer); T4 (75% of the recommended dose of fertilizer); T5 (100% of the recommended dose
of fertilizer) and the variety which involve in the experiment V1 =BARI gom-25, V2 =BARI
Gom-27, V3 =BARI Gom-28, V4 =Sawrna, V5 =Kanchon, V6 =Bijoy, V7 =Protiva, V8 =Sonalika ,
V9 =Kalyanson, V10 =Kheri, V11= Durum. In case of growth parameter better result show in the
T1 treatment i.e 0% of the recommended dose of fertilizer and BARI Gom-25,BARI Gom 27,BARI Gom-28,Sawrna, Kanchon, Bijoy, Protiva, Sonalika, Kalyanson, Kheri,Durum, shows
good result than other varieties.The highest post harvest soil N(0.8%) was found in the treatment
T5, Where BARI-gom -25was grown. Similarly 0.7% Nitogen recorded in soil of T5 Treatment
With BARI gom-28 T5, Sawrna (0.06%) in T4 and T5, Kanchon (0.07%) in T4 and T5,Bijoy
(0.07%) in T4, Protiva (0.07%) in T5, Sonalika (0.06%) in T4, Kalyason (0.06%) T5, Kheri (0.07%)
T3,Durum (0.07%) in T5. In case of phosphorous BARI gom-25 variety maximum phosphorus
content (35.1 µg/gm) in T4.BARI gom-27 (40 µg/gm) in T5, BARI gom-28 (41.5 µg/gm) in
T5,Sawrna(35.1 µg/gm) in T4.Kanchon (45 µg/gm) in T5.Bijoy (40.5 µg/gm) in T5, Protiva (44.9
µg/gm) in T5,Sonalika (40.1 µg/gm) in T5,kalyanson (45 µg/gm) in T4.Kheri ((40 µg/gm) in
T5,Durum (42.06µg µg/gm) in T5. Results revealed that the variety Protiva produced the highest
grain yield (3.65t ha
- 1
) and straw (5.28 t ha
-1
) yield, biological yield (8.93 t ha
-1
) and higher
harvest index (40. 40%) due to production of Plant Height, Panicle length Effective Tillers Plant,
Non-effective Tillers Plant , ,No. of fertile Spikeletes Spike,No. of grain spike, and 1000 grain
weight(g). The higher percentage of wheat production was obtained by the variety Protiva. The
treatment T5 (0% fertilizers) produced the higher grain yield (3.65 t/ ha) and straw yield (5.28 t
ha
-1
).From the above discussion it was clear that application of chemical fertilizers as 0% of the
recommended doses for wheat cultivation increases the yield of Protiva variety. Other varieties of
wheat shows maximum yield with the application of chemical fertilizers as 100% of the
recommended doses for wheat cultivation increases the yield of wheat. NPKS content in the soil
was maximum with application of chemical fertilizers as 75%& 100% of the recommended doses
for wheat cultivation. | en_US |
