Response of Rice Yield and Soil to Sulfur Application under Water and Salinity Stresses

Menoufia J. Plant Prod.,Vol. 3 February (2018): 85 - 10485IMPACT OF NITROGEN SOURCES AND IRRIGATION WITHHOLDING AT IDENTIFIED GROWTH STAGES OF HYBRID RICE UNDER DRILL SEEDED METHOD

“…However, nitrogen losses occurred in the form of ammonium nitrate due to NO3reduced its nitrogen use efficiency and rice plant growth. Similar results had been reported by Assefa et al, (2009), Fageria et al, (2010), Chien et al, (2011) and Zayed et al, (2012 and2017).…”

“…Urea gave the highest value of straw yield, harvest index and protein content without significant differences with ammonium nitrate for straw yield in both seasons and for harvest index and protein content in first season. Authors such as Fageria et al, (2010), Zayed (2012) and Sekhar et al, (2014) as well as Zayed et al, (2017) reported similar results. The highest values of panicle weight, 1000-grain weight, grain yield were produced by time of water stress at late booting stage in both seasons.…”

“…Several authors such as Fageria et al,. (2010), Zayed (2012) and Sekhar et al, (2014) as well as Zayed et al, (2017) clamed similar findings.…”

“…DADWSS = days after disappearance of water from soil surface. 2009, Fageria et al, (2010), Chien et al, (2011) and Zayed et al, (2012 and2017). Time of irrigation withholding significantly affected grain yield attributes in both seasons Table 5.…”

“…Rice yield components, N uptake and use efficiency were significantly and positively influenced with the increase of applied ammonium sulfate. Under saline soil conditions, Assefa et al, (2009), Fageria et al, (2010), Chien et al, (2011) and Zayed et al, (2012 and2017) found that applied ammonium sulfate as nitrogen source significantly surpassed urea application regarding rice growth (LAI, dry matter, chlorophyll content), number of panicles, number of filled grains/panicle, thousand grain weight, panicle weight, grain and straw yields as well as harvest index. Furthermore, applying ammonium sulfate significantly reduced spikelet sterility resulted in heavy panicle and grains as well as high number of filled grains.…”