The Effect Of Tillage Depths And Different Fertilizer Combinations On The Growth And Production Of The Wheat Crop (Triticum Aestivum L.)

Abstract

A field experiment was conducted during the agricultural season 2020-2021, at the agricultural extension station in Al-Najmi district, 43 km northeast of the Samawa, the center of Al-Muthanna Governorate, to determine the effect of tillage depths and different fertilizer combinations (P-K) on the growth and production of the wheat crop. The experiment was applied according to the arrangement of the split block by two factors using the (RCBD) design and with three replicates, the study included two factors: The first factor; has four treatments of the tillage systems (0, 10, 20 and 30 cm). The second factor; four fertilizer combinations with the control treatment (30, 50, 75 and 120 kg ha-1). Wheat seeds were sown on November 19, 2020. The results showed that the treatment of tillage systems had a significant effect on the studied traits, T2 excelled in giving the highest mean of the area of the flag leaf trait, the treatment of no-till farming systems (T0) gave the highest mean of the number of spikes, T3 tillage system treatment gave the highest mean of grain yield, T1 tillage treatment gave the highest mean for grain protein. As for the different fertilizer combinations (P-K), they had a significant effect on the studied traits, F2 fertilizer combination was significantly superior in achieving the highest average area of the flag leaf and grain yield, while the F4 fertilizer combination gave the highest average for grain protein. As for the interaction between the study factors, it had a significant effect on most of the studied traits, the treatment (F2×T3) was significantly superior in giving it the highest average for the trait of the area of the flag leaf and the number of spikes, whereas, treatment (F0×T3) gave the highest mean for grain yield.