Determination of soybean yield gap and potential production in Iran using modeling approach and GIS

作     者：Alireza NEHBANDANI Afshin SOLTANI Ali RAHEMI-KARIZAKI Amir DADRASI Faranak NOURBAKHSH Alireza NEHBANDANI;Afshin SOLTANI;Ali RAHEMI-KARIZAKI;Amir DADRASI;Faranak NOURBAKHSH

作者机构：Department of Plant ProductionGorgan University of Agricultural Sciences and Natural ResourcesGorgan ***Iran Department of Plant ProductionGonbad Kavoos UniversityGonbad Kavoos ***Iran Department of AgronomyAgricultural ScienceVali-e-Asr University of RafsanjanKerman ***Iran SWEP Analytical LaboratoriesMelbourneVictoria 3173Australia 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2021年第20卷第2期

页      面：395-407页

核心收录：

学科分类：082804[工学-农业电气化与自动化] 08[工学] 0828[工学-农业工程] 09[农学] 0903[农学-农业资源与环境] 0901[农学-作物学] 

基　　金：Hatfield and Prueger 

主　　题：crop area oilseed production gap soybean yield gap 

摘      要：Increasing crop production is necessary to maintain food security for the growing global *** the gap between actual and potential yield is one of the important ways to increase yield per unit *** yield and the yield gap of soybean were determined for Golestan Province,Iran,using Soybean Simulation Model (SSM-i Crop2) and Geographical Information System (GIS).Information from 24 weather stations and soil data of the region were *** gap and production gap were calculated at county and province *** average actual yield of soybean in this province was2.28 t ha^(–1) while the province’s potential yield was 4.73 t ha^(–1),so the yield gap was estimated 2.44 t ha^(–1).Thus,there is a great potential for increasing soybean yield in Golestan,which is possible through improving crop management of soybean in farmers’*** average water productivity of soybean was estimated to be 0.81 kg m^(–3).Spatial distribution of water productivity in soybean farms showed that the highest and the lowest water productivities (0.99 and 0.44 kg m^(–3)) were in western and eastern regions of the province,respectively,in accordance to vapour pressure *** was concluded that soybean production in the province could increase by 66%(from 109 970 to 182 170 tons) if 80% of the current yield gap could be removed.