Alaa Khallouf*(2) Areej Alkhedr(1) Amera Khazaal(2) Nabela Kridi(1) and Salwa Wehbe(2)
(1). Natural Resources Research Administration, General Commission for Scientific Agriculture Research (GCSAR), Damascus-Syria.
(2). Homs research center, (GCSAR), Damascus, Syria.
(*Corresponding author: Eng. Alaa Khallouf, email: firstname.lastname@example.org).
Received: 20/05/2018 Accepted: 05/09/2018
A field experiment was conducted at Natural Resources Directorate, Homs Research Center, GCSAR, in spring season 2017, to study the response of Potato (Solanum tuberosum L.) Crop (Sponta var.) to 4 Biofertilizers and study their effects on some basic fertility soil properties and some qualitative and productive traits of potato. The study carried out according to randomized complete block design with 5 treatments (T0: control, T1: Azospirillum spp, T2: Azotobacter spp, T3: phosphate soluble bacteria Bacillus megaterium, T4 mixed biofertilizers of all three previous bacteria) and 3 replications. The results showed that application of T4 (mixed biofertilizers) had a significant increase in total N% in soil with (0.0416%), available phosphorus (27.34 mg/kg), and the total productivity (21.51 ton/ha). While the application of T2 had a significant increase in available potassium quantity in soil solution with (339 mg/kg). The results also showed that the application of T4 had a significant increase in starch %, protein %, and tuber dry matter% with (6.29, 2.023 and 21.53%) respectively. Whereas T1 addition had a positive effect on TSS % (6.763%), but T2 had a significant and positive effect on total carbohydrate% with (0.507%).
Keywords: Biofertilizers, Azospirillum, Azotobacter, Bacillus megaterium, Potato.
Full Paper in Arabic: PDF