| China is the world’s largest producer and consumer of watermelon,watermelon in the people’s life and gardening industry occupies a very important position.In recent years,with the development of production and the continuous improvement of people’s living standards,more abundant varieties,superior quality,higher yield of watermelon production has become one of the most important issues in China’s horticultural industry.The high output and high efficiency of watermelon make the production cost increase.However,in the production process,the application of blind fertilization,especially nitrogen,phosphorus,potassium fertilizer is too low,resulting in a serious decline in the quality of watermelon,the phenomenon of low yield.Too much fertilizer will cause waste of fertility,pollution of the environment,the destruction of soil structure,to a certain extent,resulting in shortage of resources.Therefore,the reasonable amount of fertilizer is very important in the process of watermelon cultivation.This paper reports the method of using high amount of fertilizer and manure application,high fertilization formula and the effects of organic fertilizers combined with the use of watermelon yield and quality,nitrate content,pesticide residue,fertilizer residue in the soil,the economic benefits of the.In order to provide practical and reliable fertilizer production,the law of fertilizer requirement in the growth and development of watermelon was studied.From the quality of the cultivation of new varieties of watermelon,watermelon and screening intensive grafting,watermelon fertilization technology of watermelon,water-saving irrigation technology,integrated pest control techniques,the implementation of standardized cultivation and other processes specify the watermelon quality safe and efficient cultivation techniques of various key technologies operating specifications and technical points,including soil preparation,seeding,planting,pruning,pest management and yaman specific prevention and other aspects of support to keep the melon.(1)different fertilization watermelon,both single fruit weight and yield,high application rate of fertilizer treatment were higher than that of the conventional fertilization formula,by comparing the vine length,leaf length,stem diameter,intemode length,Ye Kuan,found a high amount of NPK fertilizer can enhance plant growth and nutrition the reproductive growth,promote plant growth,robust plants.From the comparison of yield,high fertilizer formulations yield significantly higher than that of other two kinds of fertilizer,reached 3345.71kg/667m2,lower than the amount of fertilizer is higher than 450.75 kg/667m2,increased by 15.6%;825.9kg/667m2 higher than conventional fertilization,increased by 32.8%.(2)high fertilizer formula the economic benefits of the highest ratio was 6.4,the highest,that used to grow high amount of fertilizer in the process can bring more returns in watermelon,increase the farmers’ income.(3)found on different treatments was determined after the samples were Watermelon Sugar content,total acid,soluble solids and vitamin C content.The average content of total sugar in high fertilizer treatment was the highest,reached 7.12%,the average content of total acid in contrast.The highest ratio of sugar to acid ratio was 178.There were no significant differences in the contents of soluble solids,vitamin C and nitrate in each treatment.11 pesticide residues were detected,which were all in line with the national pesticide residue standards.Determination of heavy metal content has reached the requirements of national pollution-free agricultural products. |
PDF Full Text Request