Study On The Application Effect Of Formula Fertilization Technology Of Facility Vegetables In HanCheng

With the continuous expansion of vegetable planting scale,long-term unreasonable fertilization has caused problems such as decline in vegetable yield and quality,soil environmental pollution,and low fertilizer utilization rates have become increasingly prominent.This research mainly focuses on the improper application of fertilizers in the current vegetable planting,Taking traditional fertilization as a comparison,the effect of increasing 1/3 of chicken manure and reasonable fertilization proportion of nitrogen,phosphorus and potassium on the impact of growth,yield and economic benefits of main vegetables eggplant,tomato,pepper and lettuce was studied in Hancheng.Through formula fertilization,increasing organic fertilizers,and reducing fertilizer chemical fertilizers,to achieving the purpose of reasonable applying fertilizers,saving costs,increasing vegetables efficiency,and improving soil environment,then promotes crop growth,improves yield and quality,boosts the sustainable development of agriculture,Provides reasonable fertilizer application standards for the scientific production of local vegetables,Promotes the orderly progress of fertilizer reduction and efficiency increase in the region.The main research conclusions of this paper are as follows:1.The results of soil testing showed that the soil organic matter content of vegetable fields was insufficient in Hancheng,the content of available nitrogen and available potassium is not balanced,surplus and deficiency exist at the same time,and the surplus of available phosphorus is the highest,the average content reaches 309.2 mg/kg.The average proportion of traditional fertilizer nitrogen,phosphorus,and potassium input by vegetable grower was 1:1.1:1.1,the average consumption is 1.23,4.17,and 1.03 times the demand respectively.All three nutrients have the potential to reduce application,especially phosphate fertilizer.In the future,vegetable production should focus on"stabilizing nitrogen,controlling phosphorus,and increasing potassium",and appropriately increase the application of organic fertilizers.2.Formula fertilization is generally better than traditional fertilization in terms of plant height and stem thickness.Formula fertilization in the seedling stage has no significant effect on the plant height and stem thickness of the three crops of eggplant,tomato and pepper.In the fruit expansion period,the plant growth of the formula fertilization was significantly better.Compared with the traditional fertilization,the plant height of the three crops increased by 8.6%,10.4%,and 12.5%respectively;The stem thickness increased by 6.7%,4.1%and 10.6%respectively.Thicken manure was increased33.3%,chemical fertilizers was reduced by 37.80%,16.79%,27.68%,crop yields increased by 2.5%,0.8%,4.0%,and net income per mu increased by 4.5%,1.4%,7.2%.3.Field test results of different fertilization treatments show that formula fertilization can achieve the expected target yield of crops,and have effects on increasing vegetable production and efficiency.The recommended amount of eggplant to achieve 14000 kg yield N,P₂0₅,and K₂O are 609,203.25,and 827.1 kg ha^-1,respectively;7500 kg tomatoes are497.1,92.4,and 553.05 kg·ha^-1,7500kg pepper are 676.2、147.9、655.8 kg·ha^-1.