دراسة تأثير خلط ثلاثة أنواع من مبيدات الأدغال و تركيزها المنخفضة في مكافحة الأدغال و تأثيرها في صفات النمو و الحاصل و مكوناته لمحصول الحنطة Triticum aestivum

Abstract EN

An experiment was carried out in a reclaimed land fields Fudaliyah district south of Thi Qar province, a distance (11 km) during the 2015-2016 agricultural season for the purpose of Studying the effect of mixing three types of low concentrations herbicide on weed control and their impact on growth , yield and the components of the wheat crop .

A randomized complete block design (RCBD)was used with four replications.

The first treatment included (T1) The recommended concentrations herbicide (Granstar 20g.ha-1 +Everst 70ml.ha-1+ Cronus 80g.ha-1+Trent 250ml.ha-1+ Pro-sol 150g/100L water) symbolized by the symbol (A).

The second treatment (T2) which it 75% of the recommended concentration symbolized by the symbol (B).

The third treatment (T3) which it 50% of the recommended concentration symbolized by the symbol (C).

In addition, there was the fourth treatment (T4) treatment compared it's symbol (D).

Abbreviated the mixing process and different concentrations numbers of weed (76% ,91.74% ,98.61% ) for treatment (A) , (67% ,83.47% ,79.17% ) for treatment (B), (45% ,55.37% ,63.89% ) for treatment (C) with discouraged dry weights (61.19% ,59.75% ,95.29% ), (55.66% ,51.25% ,37.32% ), (39.22% ,36.21% ,18.12% ) respectively, compared to the comparative treatment.

The results showed no significant differences between treatment (A) and treatment (B).

Treatment (A) gave significant differences in the components and crop growth (Number of plants, number of spikes, weight 1000 seed and wheat yield) but there are no significant differences in (Plant height, spike length).

Therefore, we recommend using the mixing process and low concentrations herbicide to combat weeds from the wheat fields.