استجابة بعض صفات النمو و الحاصل لمحصول الذرة الصفراء Zea mays L. بتأثير من هجن المختلفة و المكافحة الميكانيكية و الكيمياوية

الملخص EN

A field experiment was carried out during the autumn season of 2015 in the district of Daqouq in Kirkuk governorate to study the response of some traits of maize crop under the influence of different genotypes and mechanical and chemical control depending on several specialized pesticides for yellow maize.

The experiment included two factors, the first five structures of yellow maize (Kadz, Munarj, Apcaro, 106 and DKC6586).

The second is the three levels of two herbicides (Accent, nicosulfuron with concentrations of 30, 45 and 60 g / 400 larvae, covering one hectare area of the thymus Basis, rimsulfuron with concentrations of 30, 45 and 60 g / 400 lt; covering one hectare) and three methods of control (One-time digestion after 15 days of germination), the first two times with the first treatment, and the second after 15 days after the first treatment.

The first time with the first treatment, the second treatment with the second treatment, the third after 15 days Of the second transaction in addition to the coefficient In comparison, the RCBD was used with three replicates.

Some traits were studied (weight of 500 grains, the percentage of starch, total grain yield, biological yield).

The genotypes differed in their ability to produce.

(7.5) tons / h.

The monarch gene was also superior to the weight of 500 grains and a total of 272.1 g and 779.2 g / plant respectively.

Combine annual bushes especially in the case of repeated hoeing for more than two times to complete extermination of these plants Which led to a significant increase in the qualities of seed yield for maize, the treatment of the pesticide characterized by a concentration of 60 grams per hectare significantly superior in the control of annual and perennial bushes, which led to a reduction in the number and reduce dry weights with the increase in grain yield, On the rest of the experimental units in the case of hoeing for two or three times, the pesticide distinguished the pesticide Titus at a concentration of 60 grams per hectare by giving it the highest grain.

Therefore, we recommend the cultivation of genotypes Kadz and Monaraj, and the disruption of more than once, and chemical control with pesticide characteristic 60 g per hectare.