Use of Simulation Technique to Distinguish Between the Effect of Soil and Weather on Crop Development and Growth

Abstract

Abstract. Environmental factors significantly influence the development and growth of plants. The main factors are soil and weather conditions. In real world it is not possible to segregate these influences. Using simulation models there are ways to analyse the effects of the changes of soil characteristics or weather elements separately. This way all the soil characteristics and weather elements can be changed one by one or different combinations of them can be used as input series. In this study real Hungarian soil and weather scenarios were used that are significantly different from one another. Maize and wheat -the two main crops of Hungary -as well as field pea were used. Pea is known as a sensitive crop to weather. 4M-simulation package was used as a modelling tool. Our group at RISSAC based on CERES and CROPGRO models has developed it. The results showed that the weather differences caused more significant changes in yields then soil differences though soils could moderate the effects of the extreme weather scenarios. The measure of reactions is meaningfully different depending on the species and cultivars. Analysis of separated effects of soil and weather factors has not only theoretical and methodological importance, but useful for the practice, too. When new plant species or cultivars are introduced in a country the optimal habitats can be found. The optimal structure for crops (where to seed different crops, and what sequence should be applied) and technology for crops (sawing time, fertilizer application and timing, etc.) can be estimated.

Interrelationships among seed yield, total protein and amino acid composition of ten quinoa (Chenopodium quinoa) cultivars from two different agroecological regions

“…Metabolic and physiological traits of crops are affected by the environment, with soil and weather being the most important factors 21. In this context it is expected that changes in both grain yield and seed nutritional quality might occur in quinoa cultivars growing at the Encalilla site when compared with cultivar data from different agroecological sites.…”

Examination of the role of Mycoplasma bovis in bovine pneumonia and a mathematical model for its evaluation

“…The approach of modelling resembles the ones described by Fahim et al (2003), Fodor and Kovács (2003), Ladányi et al (2003) and Máthé-Gáspár and Kovács (2003). During the interpretation of data methods of Tamás (2003) were followed.…”

SEASONAL DYNAMICS OF AN AQUATIC MACROINVERTEBRATE ASSEMBLY (HYDROBIOLOGICAL CASE STUDY OF LAKE BALATON, No . 2)

“…Modelling approaches treat either oversimplified situations or purely theoretical questions e.g. [5,8,10,11]. On the other hand, experimental investigations often neglect the complexity of ecosystems e.g.…”