Study On Preparation And Application Of Liquid Silicon Boron Molybdenum Compound Fertilizer

This paper introduces the lack of three elements of silicon,boron and molybdenum in soil of our country and the demand of crops for them,studies the preparation process and method of liquid silicon boron fertilizer,liquid silicon molybdenum fertilizer and liquid silicon boron molybdenum fertilizer,and studies the application effect of the product by using the product for soaking and foliar spraying;The optimum process of preparing liquid silicon boron fertilizer was obtained by orthogonal experiment:raw material ratio m（borax）:M（potassium silicate）=5.04,reaction pH is 13.4,reaction temperature is 60℃,reaction time is 4h,at this time the silica content in the product is 33.28g/L,boron content is 104.50/L,Potassium oxide content is 38.17g/L,in line with the requirements of NY1428-2010 trace element water-soluble fertilizer standard,through X-ray diffraction and infrared spectroscopy analysis of the sediment produced during the preparation process,there are side effects in the process of product preparation,some raw materials to produce Na2SiO3,B2O3 and other by-products;Through the analysis of the extreme difference of orthogonal experiment,it is concluded that the influence of raw material ratio on the experimental results is dominant;The suitable process for preparing liquid silicon molybdenum fertilizer is as:raw material ratio m（sodium molybdate）:M（potassium silicate）=0.32,reaction temperature is 60℃,reaction time is 2h.At this time,the content of silica in the product is 53.43g/L,molybdenum content is 142.87g/L,in line with the requirements of NY1428-2010 trace element water-soluble fertilizer standard,by adjusting the preparation conditions,the silicon content can be adjusted within the 35.42-53.74g/L range,Molybdenum content adjusted within 54.61-212.08g/L range;The optimum process of preparing liquid silicon molybdenum boron fertilizer was obtained by orthogonal experiment:raw material ratio m（sodium molybdate）:M （borax）=0.80,reaction temperature of 80℃,reaction time is 3.0h,at this time the content of silica in the product is 42.96g/L,boron content is 40.51g/L,molybdenum content is 128.36g/L,the total content of three kinds of nutrients is 211.83g/L,in line with the requirements of NY1428-2010 trace element water-soluble fertilizer standard,and the preparation process is simple and flexible,molybdenum content can be adjusted in the 79-128g/L range;through X-ray diffraction analysis of the sediment produced during the preparation process,it is concluded that There are side effects in the process of product preparation,some raw materials produce MoO₃,Na₂SiO₃,B₂O₃and other by-products;orthogonal experiments show that the reaction time has the greatest influence on the experimental results.It is found that the prepared liquid silicon boron fertilizer can improve the germination rate and germination potential of seeds,and reach 100%when C（B）is0.13-0.20g/L,and the germination potential reaches more than 90%when C（B）is0.05-0.40 g/L;when C（b）For 0.10g/L and 0.13g/L,the average seedling length root reached the maximum,which was 33.2%and 23.5%higher than that of CK group respectively,and liquid fertilizer increased the activity of protease,amylase activity,tyrosine concentration and maltose concentration in endosperm at the same time,when the optimal condition,that is,C（B）was 0.20g/L,The indicators were increased by 24.4%,19.6%,20.8%and 17.9%compared with the CK group.The foliar spraying of rice in tiller period,panicle and grouting period was carried out by liquid silicon boron compound fertilizer,compared with the control group:the number of flat grains decreased,the weight of thousands of grains increased significantly,and other biological traits were improved.The content of zinc in rice grain increased by8.86%on average,and the yield of Rice acre was 86.26 kg after spraying,Yield increase rate of 18.34%,mu increase of 215.65 yuan,mu net increase of 170.65 yuan,production ratio of 4.79,significant economic benefits.