| As a variety of slow-release nitrogen fertilizer,the liquid slow-release nitrogen fertilizer has been launched in recent years and shown a grim outlook for the market because it’s quality of green and pollution-free,and the nature that doesn’t cause adverse impact to environment.Besides,it shows a high rate on nutrient utilization for it’s high content of nutrient,and closer rate of release to the sputum suction law of actual crops.But for now,the liquid slow-release nitrogen fertilizer which shows a low market share is still not widely used that many farmers are still using traditional nitrogen fertilizer varieties.In addition,most of these farmers are specialized vegetable growers.By investigating its root,the reasons that the fertilizer has not been carried out good market publicity,so most vegetable growers do not know the existence of the nitrogen fertilizer variety and its effect on vegetables.Under this circumstances,this article takes tomato as the object of research,adopts the method of field plot test,and sets up two top dressing treatments of conventional urea and liquid slow-release nitrogen fertilizer analyzes the growth,yield and quality of tomato,and studies the effect of application on tomato of this fertilizer.Furthermore,the marketing plan for this fertilizer has been put forward on the basis of promoting,demonstrating and testing large area of field and the method of questionnaire.And theoretical data and technical support for the extension and application of the liquid slow-release nitrogen fertilizer on vegetables have been provided,and drawn the following conclusions:The first,the plant height of tomato was28±5.3cm、65±4.5cm、152±8.8cm、157±7.4cm and161±10.6.after 7,30,60,90 and 120 days of planting with traditional treatment on urea was showed as the result of field plot experiment.And the plant height of tomato under the corresponding growth time was 32±6.6cm、77±2.9cm、163±9.5cm、166±8.3cm and 172±9.7cm respectively,with an average increasing of 9.4 cm under the treatment of liquid slow-release nitrogen fertilizer.The average fruit weight of tomato increased from 192.4±27.4g to263.1±34.8g under the traditional treatment on fertilizer,and the average yield of tomato’s per plant increased from 3.11±0.45 kg to 4.17±0.63 kg under the traditional treatment on fertilizer.Compared to traditional fertilization,the yield of tomato was 11667±993.7kg/acre,which was19.3% higher than before under the liquid slow-release nitrogen fertilizer.In addition,the content of soluble sugar in tomato fruit increased by 1.83%,the content of organic acid increased by 0.31%,the ratio of sugar acid increased by 0.99%,lycopene increased by 29.8%,the content of VC increased by 30.91%,soluble solids increased by 24.87% and the content of nitrate decreased by 66.2% which shows a better quality of tomato fruit by using liquid slow-release nitrogen fertilizer.What’s more,The application of liquid sustained-release nitrate nitrogen also affected the content of nitrate nitrogen in the soil,which increased by 27.73% at90 days after the fertilizer.Through the analysis of the economic benefits,the yield input ratio by using conventional urea and liquid slow-release nitrogen fertilizer was 33.17±1.03 and37.77±0.98 successively.Clearly,the yield input ratio of tomato treated with liquid nitrogen fertilizer was higher than that treated with traditional fertilizer obviously,which was 13.87%.Therefore,the liquid slow-release nitrogen fertilizer promoted the growth of tomato’s plants,increased both yield and quality of fruit,and brings economic benefits.The second,it turns out that after using liquid slow-release nitrogen fertilizer,the number of effective panicles for per plant of tomato increased by 0.7,0.8 and 0.6 respectively,the number of fruits per spike increased by 0.7,0.4 and 0.7 respectively,the weight of single fruit increased by 5.9g,32.3g and 1.0g respectively,the yield per plant increased by 1.36 kg,1.66 kg and 1.2kg respectively,and the yield per acre increased by 1228 kg,1893kg and 2106 kg,and the output and input ratio are 26.72%,35.16% and 44.14% successively compared with the application of traditional urea and shows a obvious increasing yield and economic benefits of tomato’s planting in the three experimental areas of Zhongkui village,Lingxi town and chenjia house in Wenzhou City,Zhejiang Province,which showed an obvious effect of yield increasing.Therefore,the liquid slow-release nitrogen fertilizer is suitable for large-scale popularization and using in tomato crops considering from the perspective of yield and economic benefits of tomato.The last,according to the field application effect and market research of the fertilizer in tomato,a new market promotion scheme of liquid slow-release nitrogen fertilizer combining online and offline is put forward,which aims to set up multi-directional online promotion channels,increase the proportion of audience,and carry out large-scale online promotion of liquid slow-release nitrogen fertilizer.At the same time,a new strategy of development that carrying out offline promotion,innovating the mode of promotion,improving the mode of comprehensive nutrient management and planting solution,increasing the level of agrochemical service while offline promotion have been provided with the advantages of visual intuition,high trust and quick effectiveness of offline promotion to let consumers master the action mechanism,effect and other related planting technologies of liquid slow-release nitrogen fertilizer.Furthermore,promoting the broad use of liquid slow-release nitrogen fertilizer under the comprehensive effect of Internet technology and offline promotion. |
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