THE INFLUENCE OF SOIL FERTILITY REGARDING THE FAVORABILITY OF RAPESEED CROPS IN THE CRIȘURILOR PLAIN

Abstract

The production capacity of the land or its productive potential, are both valued by soil fertility, the influence on the physiological requirements of the plants and other environmental factors. The productive potential of the Ecological Homogenous Territory (EHT), together with their pretendability for different uses and crops are evaluated using the land quality and productivity assessment (bonitation). Given the climatic conditions, the agricultural potential and the socio-economic aspects of Romania, rapeseed (Brassica napus L.) is one of the most profitable crops. The objective of this work is to assess the influence of soil fertility regarding the favorability of rapesees and on the economic value of agricultural land, under the conditions of the Crișurilor Plain. The rapeseed qualifys in the second class of favoritism (81 points) for EHT occupied by Pachic Phaeozem (EHT - PP) and in the fourth grade for EHT occupied by Haplic Luvisol (EHT - HL) with 65 points. The production increases of the main crops, conducted by EHT - PP compared with EHT - HP are between 17.5 % for wheat and barley, and 43.1 % for sugar beet. Economic efficiency of the agricultural holding, for both EHT’S, it involves increasing the water supply of the soil by irrigation and in case of EHT - HP improvement of the humus content in soil through ameliorative fertilization. Out of the four crops used in the area, rapeseed brings the highest net income, which is 3843 lei/ha (784 euro/ha), for EHT - HL and 5355 lei/ha (1093 euro/ha), for EHT – PP. Under almost similar environmental conditions, the economic value of the land increases from 13422 euros/ha, for EHT- HL to 17698 euros/ha for EHT-PP.

Keywords

• productive potential
• ecological homogenous territory (eht)
• bonitation notes
• rapeseed
• net income
• economic value of the lans