Abstract:
The objective of study was to evaluate the effect of water levels on rice yield and its effect on Cu and Zn concentration. There were five treatments simulating different water depths and durations namely: W1, W2, W3, W4 and W5. At harvest, the number of tillers and panicles were counted. Grain yield, number of grains per panicle and weight of 1000 seeds were determined. In addition, the weight of straw was also obtained. The effect of water levels was not significant for tiller number, panicle number, grain yield (t ha-1), straw weight (t ha-1), grain/panicle and 1000 seeds weight (g). The different flooding levels had no significant effect on Cu and Zn concentration analyzed in soil solution at weekly intervals. Overall, this study showed that yields and yield components and nutrients concentration were not affected by different water levels. In addition, this study clearly shows that it is highly possible to produce rice under low water input, which is capable of saving between 25-30% of water without any effect on nutrient concentration.
Page(s):
116-121
DOI:
DOI not available
Published:
Journal: Journal of Agronomy, Volume: 4, Issue: 2, Year: 2005