Effect of No-tillage System and Fertilization on Wheat Production

Abstract

Conservation agriculture is an alternative to conventional agriculture and one of the most efficient systems for sustainable agricultural development, stimulating soil biological activity, increasing organic matter and humus content. In order to evaluate the impact of the conservation agriculture system compared to the conventional agriculture system on wheat yield, a bi-factorial experiment on wheat crop based on split-plot model was organized in the Transylvania Plain, Romania, where there are a few research results in the field and the area has a high potential for the implementation of conservation agriculture system. First factor (' A') was agriculture system, having two levels: ' A1' tillage (classic) system and ' A2' no-tillage system, and the second, 'B' factor was fertilization, with three levels: 'B1' no fertilization, 'B2'-N 80 P 40 kg/ha, which is the average level practiced by farmers in the area and 'B3'-N 150 P 75 kg/ha, which is the recommended level for obtaining a high production performance specific to ' Ariesan' wheat cultivar used in this experiment. The results pointed out that, in comparison with conventional agriculture, the application of no-tillage system determined a lower wheat yield by 353 kg per surface unit. Fertilization assured a significant increase by 610 kg wheat grains per ha. In the case of the conservation agriculture system, the highest production gain was 1,260 kg/ha for 'B3A2' level compared to 'B1A2' level, where the highest fertilization level was applied. The lowest production gain was 410 kg/ha registered by 'B3A1-B1A1' which was the highest fertilizer dose in case of conventional agriculture. In conclusion, the application of no-tillage system increased the efficiency of fertilization in terms of wheat yield compared to the classical agriculture. As a result, it is recommended as farmers dealing with wheat cropping in the area and also in other regions with similar soil and climate conditions to implement conservation agriculture.

Influence of Agricultural System on the Control of Bromus Tectorum on Winter Wheat

“…Therefore, the higher the fertilization level, the higher the wheat yield (Figure 2). Analyzing the influence of fertilization level on winter wheat yield it was noticed that the additional amount fertilizer has determined a very significant increase of the yield (Mustățea et al, 2009;Grigoraș et al, 2013) The analysis of the data from figure 3 regarding the influence of the agriculture year on winter wheat yield, revealed that the 2020 year has determined a lower yield (7270 kg/ha) compared to the control variant-years average (7449 kg/ha), with an insignificant difference of 179 kg/ha.…”