喷施稀土微肥对水稻的生物学性状和产量的影响

Effects of sprayed RE microbial fertilizer on biological properties and yield of rice

初步研究了齐穗期喷施稀土微肥对杂交水稻生物学性状及产量的影响。结果表明：齐穗期喷施稀土微肥对水稻的有效穗数没有明显影响，但可以提高千粒重，显著增加实粒数；当喷施浓度为４００ｍｇ／Ｌ时，每公顷水稻可增产７９９．５ｋｇ，增产率达１０．６％。

Effects of RE microbial fertilizer on biological properties and yield of hybrid rice were studied in the present paper. The results showed that sprayed RE microbial fertilizer during complete heading stage had no effect on the number of effective ears of grain of hybrid rice,but increased markedly thousand grain weight and filled grain number. When the RE microbial fertilizer concentration was at 400 mg/l,the yield was increasesed by 799.5kg per hectare, and the rate of yield increase was 10.6%.