Research on impact of micronutrients to the yield and Seng Cu rice quality in Lao Cai province
2014
Dinh Vo Sy; Nguyen Xuau Lai; Nguyen Hoang Thuong
Micromitrients are essential elements for specialty rice. However the efficiency of plant use is not high. Experimental studies on the effects of microelements on yield and quality of rice Seng Cu was done in two years (2012 -2013), the experimental results showed that the microelements affect the growth and quality criteria rice. The average growth duration rice Seng Cu 112 - 115 days, the average of effective branches 7.5 - 7.9 branchs. The final plant height peaked at Zn elements, and lowest in the control treatments. Rice yield was increasing in all when rice was gotten some more microelements; Mo element was the most influential in rice yield. The average of rice yield in 2013 crop in experiments that got some more Mo was 5.3$ tons/ha, increased of 280 kg compared to those of control and that in 2012 crop increased of 190 kg compared to control experiments; yield of rice which was cultivated from December 2012 to May 2013 that got some more Mo was 5.52 tons/ha. The experiments that were gotten microelements have good qualities and high nutrient values; and the rice quality was the best when rice was gotten some more Zn in both of crops.
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