喷施新型叶面肥对水稻生长、产量和养分吸收的影响

Effects of Spraying New Foliar Fertilizers on the Growth,Yield and Nutrient Uptake of Rice

通过福建省三明市沙县区设置田间试验,研究了喷施不同浓度的生物有机硅叶面肥(BioSilAc)和有机生物刺激素(OBFs)叶面肥对烟后稻生长、产量及养分吸收的影响。在常规施肥的基础上,设置5个处理:处理1(CK)喷施清水300 L·hm^(-2);处理2喷施浓度为1.33 g·L^(-1) BioSilAc固态叶面肥300 L·hm^(-2);处理3喷施浓度2.67 g·L^(-1) BioSilAc固态叶面肥300 L·hm^(-2);处理4喷施用量2 L OBFs液态叶面肥;处理5喷施用量4 L OBFs液态叶面肥。结果表明:与处理1(CK)相比,喷施BioSilAc固态肥和OBFs液态肥对烟后稻穗数、实粒数和千粒重等水稻经济性状指标无显著影响;但处理2、处理3、处理4、处理5稻谷氮吸收量分别增加6.85%、5.37%、11.25%、8.39%,磷吸收量增加8.76%、18.35%、20.58%、10.28%,以及钾吸收量增加5.86%、8.74%、15.69%、5.74%。而且,喷施BioSilAc固态肥和OBFs液态肥对水稻均有不同程度增产作用,处理2和处理3比处理1(CK)稻谷产量分别增加9.8%和9.7%,处理4和处理5分别增产16.2%和7.5%。综上可知,烟后稻生长期喷施不同浓度BioSilAc和OBFs叶面肥后稻谷氮、磷和钾吸收量提高,利于促进水稻增产。

By carrying out the field experiment in Shaxian district,Sanming City,Fujian Province,the effects of different concentrations of organic silicon(BioSilAc)foliar fertilizer and organic biogenic stimulant(OBFs)foliar fertilizer on the growth,yield and nutrient uptake of the post-tobacco rice were studied.On the basis of conventional fertilization,five treatments were set up:treatment 1(sprayed with 300 L·hm^(-2) water,CK),treatment 2(sprayed with 300 L·hm^(-2) BioSilAc solid foliar fertilizer with a concentration of 1.33 g·L^(-1)),treatment 3(sprayed with 300 L·hm^(-2) BioSilAc solid foliar fertilizer with a concentration of 2.67 g·L^(-1)),treatment 4(sprayed with 2 L OBFs liquid foliar fertilizer),and treatment 5(sprayed with 4 L OBFs liquid foliar fertilizer).The results showed that compared with the treatment 1(CK),the application of BioSilAc solid fertilizer and OBFs liquid fertilizer had no significant effects on the economic character indexes of post-tobacco rice,such as the number of spikes,filled grain number and thousand-grain weight.However,the nitrogen uptake of rice in the treatments 2,3,4 and 5 increased by 6.85%,5.37%,11.25%and 8.39%,respectively;the phosphorus uptake increased by 8.76%,18.35%,20.58%and 10.28%,respectively;and the potassium uptake increased by 5.86%,8.74%,15.69%and 5.74%,respectively.In addition,the application of BioSilAc solid fertilizer and OBFs liquid fertilizer could increase the yield of rice in different degrees.Compared with the treatment 1(CK),the yield of rice in treatment 2 and treatment 3 increased by 9.8%and 9.7%,respectively;and the yield of rice in treatment 4 and treatment 5 increased by 16.2%and 7.5%,respectively.In conclusion,after spraying the foliar fertilizers of BioSilAc and OBFs with different concentrations during the growth period of post-tobacco rice,the uptake of nitrogen,phosphorus and potassium in rice increased,which was beneficial to increase the yield of rice.