تأثر أنظمة الحراثة في إعداد الأرض لزراعة أصناف الرز تحت ظروف التعاقب المحصولي

الملخص EN

A study was carried out in a private field at Al-Muthana governorate on seasons of 2013 and 2014 using split plot system in CRBD with three replicates.

It included the study of three different tillage systems (Conventional, minimum, no tillage) and their effect on three rice cultivars (Amber, firat, yasemine) in two different locations.

As for the previous crop, the first was cultivated with barley and the second with broad bean in relation to effect on percentage weed limitation, root length, plant height, panicle length, number of grains per panicle, thousand grain weight and grain yield, t.ha-1.

The results showed significant superiority of the traditional tillage system in most of the studied properties except for thousand grain weight.

yasmine and Firat cultivars significantly surpassed Amber 33 cultivar in percentage weed limitation, thousand grain weight and grain yield, t.ha-1.

Amber 33 cultivar was significantly superior in root length and plant height.

The second location (broad bean) demonstrated significant superiority in root length, plant height, panicle length, grain number per panicle, thousand grain weight and grain yield, t.ha-1.

The table of triple interactions confirms the significant superiority of yasmine cultivar using the traditional, lower and no tillage systems on the property of grain yield at broad bean cultivation location where it gave 6.353, 6.335 and 6.297 t.ha-1, respectively.