Crop planting suitability recommendation method

Abstract

The invention provides a crop planting suitability recommendation method, which comprises the following steps of: selecting four ecological regions in Inner Mongolia as research regions, selecting typical sites in each ecological region for research, selecting main planting crops in Inner Mongolia for research, selecting a local conventional sowing time and a conventional management mode of each crop, and selecting a conventional management mode of each crop; and performing year-by-year simulation by using an agricultural production system model to obtain potential yields and rain-fed yields of main crops, calculating yield reduction rates of the main crops in different regions, dividing each site into year types according to meteorological data of typical sites in different regions, classifying yield expressions and yield reduction rates of the main crops in different year types, sequencing average rain-fed yields, the average potential yields and the yield difference of the six crops, and classifying the conditions that potatoes, hulless oat, oilseed rape, corn, edible sunflower and oil sunflower are suitable for rain-fed planting in the areas and the annual types .

Description

technical field [0001] The invention relates to the field of agricultural production, in particular to a method for recommending planting suitability. Background technique [0002] In recent decades, climate warming has shortened the growth period and increased precipitation variability during the growing season, exacerbating the instability of dry farming agricultural production in Inner Mongolia, and having an important impact on the layout and structure of agricultural production. The total annual precipitation in Inner Mongolia The amount of rainfall varies from 50 to 450 mm, the variability of precipitation is 15% to 30%, and the evaporation is large. Almost every year, droughts of different degrees occur. Due to the limitation of water resources, dry farming is the main way of agricultural production in Inner Mongolia. Most of the crops are Relying on natural precipitation to maintain growth leads to low and unstable local crop production capacity and an extremely frag...

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Problems solved by technology

[0004] Based on the spatial distribution characteristics of climatic factors in the study area, previous studies have conducted research on the planting suitability of major crops in different regions of Inner Mongolia. However, studies on crop adaptability in Inner Mongolia are mostly based on field experiments on single crops in a single region, and less research on major crops in the region. In order to optimize the crop distribution, it is necessary to determine the suitability of the main crops under different precipitation year types in Inner Mongolia by quantifying the yield reduction rates of various crops. Therefore, we improve this and propose a crop suitable for planting sex recommendation method

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