Nitrogen
(N) is necessary sustenance for healthy plant growth and its yield. Urea is a
primary source of N in solid fertilizers. The hydrolysis rate of urea
accelerates as it stays in surface application. However, Controlled-Release
Fertilizers (CRF) has proven to reduce N losses, thereby increasing fertilizer
efficiency. Wheat is the leading food grain of Pakistan occupying the largest
area under single crop. It accounts for 9.6 percent of the value added in
agriculture and 1.9 percent GDP. However, the production is recorded less as
compared to previous years due to imbalance fertilizer application practices.
The recommended doses of fertilizers may vary time to time for wheat. This
study is therefore, planned to evaluate the method and appropriate rate of N
for wheat, based on these specific objectives: 1) to evaluate an appropriate
method and dose of N application for wheat and 2) to find out the effect of
different N applications on growth and yield of wheat. In this regard, a field
experiment was conducted at Wheat Section, Agriculture Research Institute
Tandojam. There were 5 treatments examined on one variety (TD1) of wheat with
three replications. The encapsulated urea was prepared manually in the
laboratory of Department of Soil Science, Sindh Agriculture University
Tandojam. Results revealed that wheat yield was markedly influenced by
encapsulated urea as compared to surface applied urea. Maximum yield (40.5 %
increment over control) was observed from encapsulated urea (N 140 kg ha-1).
However, the difference between the rates of N was non-significant (p >
0.05).
Birincil Dil | İngilizce |
---|---|
Konular | Mühendislik |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 25 Temmuz 2019 |
Yayımlandığı Sayı | Yıl 2019Cilt: 6 |