| Rice smut is one of the three major diseases of rice,and it has a great impact on rice yield.At present,the main method of controlling rice smut disease is chemical control.In recent years,growers have gradually increased their attention to water-soluble fertilizers for plants.Plant water-soluble fertilizer not only promotes the growth of crops,but also has a certain promoting effect in preventing insects and diseases.This article takes Liangyou and Lumei as the object to study the field control effect of rice smut and its effect on rice yield;it is clear that the effect of the combination of the grain and the sweetness on the safety of rice,and the effect of the combination of the grain and the sweetness on the safety of rice.The effect of rice smut control effect,and the effect of grain quality compound luscious on rice growth and yield.The main results were as following:1.The influences of mixed use of Liangyou and Ganmei on the control of rice smut.According to Pesticide-Guidelines for the Field Efficacy Trials on the effects of 6 different treatments on control rice smut disease were carried out.The results showed that the four treatment areas with Liangyou 25 m L/667 m~2,Liangyou 25 m L/667 m~2compound Ganmei 100 m L/667 m~2,Picoxystrobin·Propiconazole 70 m L/667 m~2,Difenoconazole·Azoxystrobin 20 m L/667 m~2,Difenoconazole·Azoxystrobin 20m L/667 m~2 compound potassium dihydrogen phosphate 50 g/667 m~2 and blank control were gradually increasing,it started to stabilize after 42 days.In the Liangyou25 m L/667 m~2 treatment area,the diseased plant rate of rice smut disease was 6.23%and the diseased grain rate was 0.45%at 21 days after the treatment,and the diseased plant rate of rice smut disease was 15.43%and the diseased grain rate was 1.18%at49 days after the treatment.In the Liangyou 25 m L/667 m~2 compound Ganmei 100m L/667 m~2 treatment area,the diseased plant rate of rice smut disease was 5.42%and the diseased grain rate was 0.32%at 21 days after the treatment,and the diseased plant rate of rice smut disease was 11.22%and the disease rate was 1.08%at 49 days after the treatment.In the Picoxystrobin·Propiconazole 70 m L/667 m~2 treatment area,the diseased plant rate of rice smut disease was 6.15%and the diseased grain rate was0.49%at 21 days after the treatment,and the diseased plant rate of rice smut disease was 16.23%and the diseased grain rate was 1.27%at 49 days after the treatment.In the Difenoconazole·Azoxystrobin 20 m L/667 m~2 treatment area,the diseased plant rate of rice smut disease was 6.03%and the diseased grain rate was 0.66%at 21 days after the treatment,and the diseased plant rate of rice smut disease was 20.18%and the diseased grain rate was 1.53%at 49 days after the treatment.In the Difenoconazole·Azoxystrobin 20 m L/667 m~2 compound potassium dihydrogen phosphate 50 g/667 m~2 treatment area,the diseased plant rate of rice smut disease was6.09%and the diseased grain rate was 0.58%at 21 days after the treatment,and the diseased plant rate of rice smut disease was 16.39%and the diseased grain rate was1.24%at 49 days after the treatment.In the blank control treatment area,the diseased plant rate of rice smut disease was 20.14%and the diseased grain rate was 0.82%at21 days after the treatment,and the diseased plant rate of rice smut disease was34.62%and the diseased grain rate was 2.02%at 49 days after the treatment.2.The influences of mixed use of Liangyou and Ganmei on the growth of rice.According to Pesticide-Guidelines for the Field Efficacy Trials on the effects of 6different treatments on the growth of rice were carried out.The results showed that at21 days after the treatment,the flag leaf area,ear length and ear weight of rice in the treatment area of Liangyou 25 m L/667 m~2 compound Ganmei 100 m L/667 m~2 were higher than those of Liangyou 25 m L/667 m~2,Picoxystrobin·Propiconazole 70 m L/667m~2,Difenoconazole·Azoxystrobin 20 m L/667 m~2,Difenoconazole·Azoxystrobin 20m L/667 m~2 compound potassium dihydrogen phosphate 50 g/667 m~2 and blank,was47.58 cm~2,25.25 cm and 300.2 g,respectively,which increased by 0.59%,0.84%,and6.87%compared with the blank control treatment area.The rice stalks treated with luscious green seeds are yellow,the grains are full,and the rice growth is significantly better than the rice without Ganmei treatting.3.The influences of mixed use of Liangyou and Ganmei on the yield of rice.According to Pesticide-Guidelines for the Field Efficacy Trials on the effects of 6 different treatments on the yield of rice were carried out.The results showed that there are differences in the number of effective panicles,effective panicle grains,thousand-grain weight,and seed setting rate in the four treatment areas.The effective panicle number,effective panicle number and thousand-grain weight per unit area of the Liangyou 25 m L/667 m~2 compound Ganmei 100 m L/667 m~2 treatment area slightly higher than the other 5 treatment areas,and the seed setting rate is significantly higher than the other 5 treatment areas.The theoretical rice yield per mu is also somewhat different from the other 5 treatment areas,which is 725.70 kg,and the other 3 treatment areas are 670.92 kg,666.91 kg,664.82 kg,685.86 kg and638.56 kg respectively.The theoretical rice yield per mu in the Liangyou 25 m L/667m~2 compound Ganmei 100 m L/667 m~2 treatment area was 13.65%higher than that in the blank control treatment area.Rice smut disease occurred in different degrees in the 6 treatment areas,which also had a certain influences on rice yield.The rice yields of Liangyou 25 m L/667 m~2 and Picoxystrobin·Propiconazole 70 m L/667 m~2Difenoconazole·Azoxystrobin 20 m L/667 m~2,Difenoconazole·Azoxystrobin 20m L/667 m~2 compound potassium dihydrogen phosphate 50 g/667 m~2 treatment areas were higher than those of the blank control area,was 5.07%,4.43%,4.11%and7.41%respectively. |
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