تأثير الخلطات الترابية في إنبات ونمو بعض النباتات الرعوية

الملخص EN

The research was carried out at the Al-Sabboura Research Station of the Arab Center for Studies of Arid Zones and Dry Lands (ACSAD) - Al-Sabboura - Syria, in the 2019 growing season to study the effect of soil mixes on the germination and growth of some pasture plants.

The seeds of four pastoral species were sown in polyethylene bags : Retem (Retama raetam ), Arta (Calligonum comosum, )Acacia lebbeck, Periploca angustifolia).

These bags were filled with five types of soil mixes (100% sand, soil + sand in a 1 : 1 ratio, soil + Volcanic tuff in a 1: 1 ratio, soil + fermented olive residue in a 1: 1 ratio, soil + Sewage sludge compost in a ratio of 1: 1.

Growth readings were taken six months after planting.

The results showed that the soil mixes (soil + compost sewage sludge in a ratio of 1: 1) was significantly superior to the rest of the mixtures, and the highest values were recorded in the dry and fresh weight of the shoots (15.81 and 8.58 g), respectively, and the fresh and dry weight of the roots (9.66, 4.61 g),respectively, the dry weight of the vegetative total the dry weight of the roots ratio (2.39), while the mixture (soil + volcanic thinning by 1: 1) was outperformed as the percentage of germination (61.88%), and the mixture (soil + fermented olive residue by (1: 1) in the fresh weight of the shoot mass the fresh weight of the roots ratio (2.37), and the Periploca angustifolia plant significantly surpassed the rest of the studied pastoral species by the percentage of germination (81.20%) and the fresh and dry weight of the shoots (14.77, 8.21 g), respectively.

Whereas, Periploca angustifolia outperformed the plant height (69.60 cm) and the weight ratio (fresh and dry) of the shoot total / root total (2.87 and 2.55g), respectively, while, Retama raetam gave the highest values in fresh and dry weight of the root group (11.01, 5.64 g).

Respectively, and all the studied traits were significantly affected by the interaction between soil mixtures and the studied pastoral species.