النظم الميكانيكية في إعداد الأرض لزراعة الحنطة تحت ظروف التعاقب المحصولي

Abstract EN

The present study deals with 8 different cultivation systems in two different timings namely, November 11 and December 25 in two different sites as regards the previous crop.

The first was planted with okra and the second one with peas.

It also studies the effect of these conditions on the apparent and porous concentrations and the number of wheat plants per sq.

m, spike length, number of corns per spike, corns weight per spike and the total crop.

The results show a significant difference in favour of disc plow, the disc harrow and the board level in the majority of the studied characteristics especially the spike length, number of corns, weight of corns per spike and total weight.

The second timing had a significant difference as compared with the first one in the second site in characteristics spike length, number of corns per spike, corns weight per spike and total crop whereas the second time surpassed the first time in the second site (peas) in the characteristics spike length, number of corns per spike and corns weight per spike, while the second site (peas) surpassed the first site (okra) significantly for both crops in the characteristics spike length, number of corns per spike, corns weight per spike and total crop.

The three studied factors interaction (systems, timing and sites) show a significant difference in favor of disc plow, disc harrow and board level in the second timing and second site in the spike length, number of corns, spike corns weight and total crop at all levels.