|Table of Contents|

Effects of Nitrogen Fertilizer Optimization on Rain-shelter and High Mountain Cultivation Tomato Yield and Nutrient Use Efficiency

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年05
Page:
41-46
Research Field:
Publishing date:

Info

Title:
Effects of Nitrogen Fertilizer Optimization on Rain-shelter and High Mountain Cultivation Tomato Yield and Nutrient Use Efficiency
Author(s):
XU Dabing12JIAO Zhongjiu3SI Guohan12QIU Zhengming3YUAN Jiafu12ZHAO Shujun12
(1.Key Laboratory of Fertilization From Agricultural Wastes,Ministry of Agriculture and Rural Affairs,Wuhan,Hubei 430064;2.Institute of Plant Protection and Soil Fertilizer,Hubei Academy of Agricultural Sciences,Wuhan,Hubei 430064;3.Institute of Economic Crops,Hubei Academy of Agricultural Sciences,Wuhan,Hubei 430064)
Keywords:
high mountain vegetablesnutrient accumulationnitrogen fertilizer use efficiencynitrogen fertilizer agronomic efficiencynitrogen fertilizer partial productivity
PACS:
-
DOI:
10.11937/bfyy.20213507
Abstract:
Taking the rain-shelter cultivated tomato as test material,the two years field experiments were carried out to study the effects of different nitrogen application rates,optimized combination of nitrogen,phosphorus and potassium,and organic fertilizer nitrogen instead of chemical fertilizer nitrogen with drip irrigation on yield and nitrogen use efficiency of tomato,in order to determine the suitable application method of nitrogen fertilizer in tomato cultivation,and provide a reference for scientific fertilization in the rain-shelter and high mountain.The results showed that the higher tomato fruit yield,plant nitrogen accumulation and nitrogen fertilizer use efficiency was obtained by nitrogen application rate of 405 kg?hm-2.Compared with conventional fertilization,the yield of tomato was slightly higher (0.73%-2.92%) under the optimal combination of N,P,K and organic fertilizer N instead of 20% of chemical fertilizer treatments.The application amount decreased by 11.11% and 20.00% of N fertilizer,51.85% and 51.85% of P fertilizer,respectively.When applied with optimal combination of N,P,K and organic fertilizer N instead chemical fertilizer,the agronomic use efficiency increased by 25.44% and 28.60%,and 15.79% and 25.91% of partial productivity,respectively.With water and fertilizer suppled,the optimal nitrogen application rate of high mountain tomato in the rain-shelter cultivation in Western Hubei was 405 kg?hm-2,and the optimal combination and organic fertilizer nitrogen instead of 20% of chemical fertilizer can obtain the similar yield and higher nitrogen use efficiency of conventional fertilization.

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Last Update: 2022-05-23