Application Effect And Extension Scheme Design Of Water Soluble Fertilizer With High Phosphorus And Potassium Elements On Rice And Maize

Water soluble fertilizer with high phosphorus and potassium has been widely used in different types of crop production due to its advantages of high phosphorus and potassium content,quick solubility and easy absorption and utilization by crops.In order to verify the effects of self-made water-soluble fertilizer with high phosphorus and potassium(solid)on the growth and yield of rice,maize and other crops in the middle and late stages,this study conducted field experiments and comparative analysis on two crops in three provinces and four places,taking local conventional rice and maize varieties as the research objects,and objectively evaluating the application effect of water-soluble fertilizer with large quantities of elements with high phosphorus and potassium.At the same time determine the most suitable application amount for rice and maize;According to the current market product characteristics and sales situation,designed the product promotion program.The main research conclusions are as follows:(1)Water-soluble fertilizer with high phosphorus and potassium could promote the growth of crops in the middle and late stages.The results of rice experiments in the two places showed that,on the basis of the local conventional fertilization,adding a large amount of elemental water-soluble fertilizer made by the laboratory and foliar spraying at the rate of 1050g/hm2 could promote the growth of rice to a certain extent.In the Jinong test,plant height,leaf area,fresh weight of aboveground part and grain number per spike increased by 10%,22.5%,25.53%and9.5%,respectively.In Taonan test,plant height,leaf area,fresh weight of overshoot,panicle number,grain number per panicle and seed setting rate increased by 5.3%,17.9%,30.6%,34.1%,17.2%and 6.1%,respectively.The bald tip of rice was reduced,and the leaves of rice were dark green,showing obvious growth advantage.The experimental results of maize in two places showed that,on the basis of conventional fertilization,adding a large amount of elemental water-soluble fertilizer made by the laboratory and foliar spraying according to 1050g/hm2 could promote the growth of maize in the middle and late stages.In Yangquan experiment,the plant height,stem diameter and ear diameter were increased by 10.9%,4.4%and 3.4%,and the bald point of maize was reduced by 69%.In the Qufu experiment,plant height and stem diameter were increased by 3.6%,7.3%and bald point was reduced by 54%.(2)Water-soluble fertilizer with high phosphorus and potassium could promote the photosynthesis of crops,which was reflected in the improvement of rice chlorophyll and maize leaf SPAD value.In the rice test,chlorophyll increased by 5.6%and 7.5%respectively in the Jinong and Taonan tests.In maize test,leaf SPAD increased 9.2%and 14.2%respectively in Yangquan and Qufu tests.(3)Water-soluble fertilizer with high phosphorus and potassium could increase crop yield.In the Jinong rice experiment,the yield of local fertilizer+1050g/hm~2 water-soluble fertilizer treatment was 19.6%,14.4%and 10.7%higher than that of clean water,local conventional fertilizer and local fertilizer+clean water control treatment,respectively.In the Taonan rice experiment,the rice yield was increased by 20.3%,11.1%and 9.8%,respectively,compared with clear water control,local conventional fertilization control and local fertilization+clear water control.In Yangquan maize experiment,the yield of local fertilizer+70g/mu water-soluble fertilizer increased by 11.2%,6.3%and 4.5%,respectively,compared with the control treatments of clean water,local conventional fertilizer and local conventional fertilizer+clean water.In the corn experiment in Qufu,the increase was 11.5%,8%and 7.1%,respectively,compared with three treatments of clean water,local conventional fertilization and local conventional fertilization+clean water.(4)Water-soluble fertilizer with high phosphorus and large amount of potassium elements has good market prospects and market promotion value.From the preliminary promotion work analysis,regional management,customer information management,order meeting and viewing meeting,offline and online marketing simulation promotion program.