Investigation and Research on the Current Status of Fertilization in Facility Vegetables of Shandong Province

• 作者: Hongjun GUO Jianjun XIAO Jing SHI Lihua JIANG Mei WANG Ni LI Ronghui MA Yan YANG Yansheng LIU Yu XU Zhongtao LI
• 来源期刊: 农业生物技术:英文版
• 学科: 经济
• 关键词: Facility vegetable FERTILIZATION INVESTIGATION Shandong
• 年，卷（期）: nyswjsywb_2020,（3）
• 页码范围: 83-89
• 页数: 7页
• 分类号: F42

摘要

In order to clarify the current situation and main problems in facility vegetable fertilization and guide farmers to fertilize scientifically,an investigation on the yield and fertilization of facility vegetables( tomato,cucumber,eggplant and celery) was carried out in six districts and counties in Shandong Province from 2016 to 2017. The results showed that among the four vegetables,the yield levels of eggplant and celery varied slightly with the coefficient of variation between 7. 18% and 27. 63%,and the yield levels of tomato and cucumber varied greatly with the coefficient of variation between 33. 84% and 65. 15%. In terms of fertilization,the differences in N,P2O5 and K2O inputs in cucumber was the largest,and the maximum values of the nutrient inputs were 7. 95,8. 54 and 8. 77 times of the corresponding minimum values,respectively. The input amounts of N,P2O5 and K2O in tomato,cucumber and eggplant were 1. 47-2. 68,3. 93-7. 50 and1. 09-1. 51 times of the corresponding demands,respectively. The N and P2O5 inputs of celery exceeded the demands by 32. 00% and 79. 00%,respectively,while the K2O input was only 49. 00% of the demand. The ratios of N∶ P2O5∶ K2O input in the total application amount,organic fertilizer,base fertilizer and topdressing chemical fertilizer of facility vegetables were,respectively,1∶ 0. 84∶ 1. 02,1∶ 0. 84∶ 0. 80,1∶ 0. 99∶ 1. 05 and 1∶ 0. 77∶ 1. 25. The proportion of P2O5 input was too high,while the proportion of K2O input coming from the organic fertilizer was insufficient. The average proportions of organic fertilizer in N,P2O5 and K2O inputs were 43. 96%,43. 72% and 36. 99% respectively. The proportions of organic fertilizer in N and P2O5 inputs were reasonable,while that in K2O was lower.In N,P2O5 and K2O inputs of different vegetables,the proportions from organic fertilizer were reasonable in cucumber,higher in eggplant and lower in tomato and celery. The recommendations were presented in this paper that the inputs of N and P2O5 should be reduced,and the inputs