摘要
Abstract
Objective] The aim was to study the optimum application amount of nitrogen, phosphorus and potassium in the cultivation of cher-ry tomatoes.[ Method] Based on the “3414” unified standard recommended by soil testing and fertilization, the experiment was designed to carry out the fertilizer efficiency experiment.Using Microsoft Excel software, the quadratic regression curve method about fertilizer efficiency and yield was established.The relationship between nitrogen, phosphorus and potassium concentration and cherry tomatoes yield was studied , the optimal fertilization combination was selected.[ Result] The results showed that the yield of cherry tomato is 14 277.30 kg/hm2 under the basic fertility condition, while under the conditions of nitrogen, phosphorus and potassium deficiency, yields of cherry tomato were 58.7%, 85.3% and 92.8%, respectively.Phosphorus, nitrogen and potassium fertilizers could promote agronomic traits.According to the fitting e-quation of yield, the yield was the highest when the fertilizer was N 453.15 kg/hm2 , P2 O5 285.15 kg/hm2 , K2 O 130.20 kg/hm2 , and the proportion of the three elements was 3.5∶2.2∶1.The results of single factor analysis showed that the typical parabolic characteristics were found between the application rates of fertilizers and cherry tomato yield.[Conclusion] The study can provide technical support for scientific cultivation and yield improvement of cherry tomatoes.关键词
“3414”试验/圣女果/产量/肥效/海南省Key words
“3414” trail/Cherry tomatoes/Yield/Fertilizer efficiency/Hainan Province分类
农业科技
