Impact of Nitrogen and Organic Sources with and without Beneficial Microbes on Wheat Crop
Impact of Nitrogen and Organic Sources with and without Beneficial Microbes on Wheat Crop
Siddique Ahmad1*, Basit Ullah1, Sajid Ali2, Ali Zaid1, Zeeshan Ahmad3, Muhammad Usaid1, Muhammad Zeeshan1 and Saif Ullah3
ABSTRACT
Cereal crops have been the backbone of national agriculture for decades, as they are major staple food crops. Crop nutrients major sources are organic, inorganic and bio-fertilizers. Supplementation of beneficial microbes with organic and inorganic fertilizers is a feasible technology to improve wheat productivity. A field experiment was conducted to evaluate the impact of organic sources (OS) and inorganic N fertilizer (Urea) along with the application of bio-aab (beneficial microbes) on the wheat crop at the Agronomy Research Farm, The University of Agriculture Peshawar Pakistan, during 2020-2021. Two separate experiments were conducted (with and without bio-aab) in Randomized Complete Block Design each consisted of 10 treatments. Bio-aab treatments are T1: Poultry manure (PM) + 80 kg N + bioabb, T2: PM + 120 kg N + bio-aab, T3: PM + 160 kg N + bio-aab, T4: Farm yard manure (FYM) + 80 kg N + bioabb, T5: FYM + 120 kg N + bio-aab, T6: FYM + 160 kg N + bio-aab, T7: Maize residues (MR) + 80 kg N + bioabb, T8: MR + 120 kg N + bio-aab, T9: MR + 160 kg N + bio-aab, T10: Control), same treatments followed for without bio-aab. OS have applied accordingly to the plots one month before sowing, bio-aab solution (60 litres ha-1) was applied with first irrigation to one experiment before sowing to encourage microbial action necessary for manure decomposition, while half N was applied at sowing time and half after seven days of sowing with first irrigation. Statistical analysis was done combined over bio-aab. The principle beneficial microorganisms (BM) in bio-aab contain photosynthetic bacteria, lactic acid bacteria and yeast. These BM produced useful substances such as amino acids, nucleic acids, lactic acid, bioactive substances, hormones, enzymes and sugars. All these substances promote active cell and root division, plant growth, productivity, suppress harmful microorganisms, and enhance the decomposition of organic matter. Results showed that integrated use of PM and N (120 or 160 kg ha-1) along with the application of bio-aab significantly (P≤0.05) improved tillers m-2 (12%), grains spike-1 (15%), biological yield (31%) and grain yield (39%) as compared to control plots. Results of the bio-aab treated plots were found (8%) superior yield than without bio-aab.
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