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- Title
Comparative effects of biochar and NPK on wheat crops under different management systems.
- Authors
Ullah, Ibad; Muhammad, Dost; Mussarat, Maria; Khan, Shadman; Adnan, Muhammad; Fahad, Shah; Ismail, Muhammad; Ahmad Mian, Ishaq; Ali, Aizaz; Hamzah Saleem, Muhammad; Saeed, Muhammad; Gul, Farhana; Ibrahim, Muhammad; Raza, Muhammad Aown Sammar; Hammad, Hafiz Mohkum; Nasim, Wajid; Saud, Shah; Khattak, Jabar Zaman Khan; Ahmad, Masood; Ali, Naushad
- Abstract
As a multi-beneficial amendment, biochar is very useful to be applied for improving soil health and crop productivity. Therefore, this study was carried out to assess the influence of wood biochar and mineral nitrogen (N), phosphorus (P) and potassium (K) fertilisers viz , [(control; 100% NPK (120:90:60 kg ha−1); 75% NPK + 5 tonne biochar; 50% NPK + 10 tonne biochar; 25% NPK + 15 tonne biochar and 20 tonne biochar ha−1)] on wheat yield and soil properties under different management practices [(raised bed (more than 30 cm above the ground) and flat-bed)]. Split plot two factors randomised completed block (RCB) design with three replications were used where management practices were placed to main plot, while treatments were assigned to subplots. Maximum spike length, grain per spike, 1000 grain weight, grain and biological yield were obtained with application of 75% NPK + 5 tonne biochar ha−1 under both raised and flat-bed, which were statistically at par to 50% NPK + 10 tonne biochar ha−1. The grain and biological yield observed at 75% NPK + 5 tonne biochar and 50% NPK + 10 tonne biochar ha−1 were significantly higher than that of 20 tonne biochar ha−1. However, maximum soil organic matter, extractable P and K contents with slight increases in soil pH and EC was observed at 20 tonne biochar ha−1. Moreover, almost all agronomic parameters were significantly better in raised bed compared to flat-bed sowing. Hence, the present study suggested that 75% NPK + 5 tonne biochar ha−1 is suitable for improving wheat yield and soil properties. Biochar significantly decreases nutrient and pollutant leaching in soils. Biochar application could decrease P loss from applied P fertilisers due to leaching, reducing the pollution risk from P in water and soils. The present study assessed the effect of biochar and nitrogen–phosphorus–potassium (NPK) fertilisers on wheat yield, other agronomic parameters and selected soil properties under raised- and flat-bed cultivation. The study would be useful for further enhancing wheat yield in irrigated and rainfed areas on a sustainable basis.
- Subjects
BIOCHAR; SOIL leaching; WHEAT; SOIL acidity; GRAIN yields; PHYTOSANITATION
- Publication
Crop & Pasture Science, 2023, Vol 74, Issue 1/2, p31
- ISSN
1836-0947
- Publication type
Article
- DOI
10.1071/CP21146