APPLICATION OF Dalbergia sissoo BIOCHAR ENHANCED WHEAT GROWTH, YIELD AND NUTRIENT RECOVERY UNDER REDUCED FERTILIZER DOSES IN CALCAREOUS SOIL

Abstract

In a field trial, Dalbergia sissoo biochar was used to investigate its potential for improving growth, yield and nutrient recovery of wheat (Triticum aestivum L.), at varying fertilizer rates under calcareous soil. Two biochar levels (0.0 and 1.0% of soil weight) were used along with five fertilizer rates i.e. 0, 25, 50, 75 and 100% of recommended inorganic fertilizer dose (RFD). Seeds of wheat cultivar Faisalabad-2008 were sown in the field using 2 factorial-randomized complete block design. At reduced fertilizer rates, biochar application improved plant growth parameters i.e. plant height, spike length, number of tillers hill −1 and grain yield over the respective treatments having inorganic fertilizer without biochar. Regarding nitrogen (N), phosphorus (P) and potassium (K) content, the highest statistical results were achieved at reduced fertilizer doses along with biochar application i.e. N and P content in wheat straw and grain at 50% RFD, straw N and P uptake at 75% RFD, grain N and K uptake at 50% RFD and grain P uptake at 75% RFD. The highest N, P and K recovery was calculated in the treatments having 50% RFD + biochar with 95%, 25% RFD + biochar with 38% and 25% RFD with 117%, respectively. In comparison with control treatment (without fertilizer and biochar), biochar application improved soil CEC up to 40%. With biochar application, no any significant change was observed in other soil chemical properties i.e. pH and EC. The results suggested that 1.0% biochar along with reduced fertilizer doses, could be effectively used to improve wheat growth, yield, nutrient content and nutrient uptake under field condition. Moreover, 1.0% biochar along with 75% of RFD can be effectively used in place of 100% RFD to get the highest yield.

Effect of enriched biochar based fertilizers on growth, yield and nitrogen use efficiency in direct-seeded rice (Oryza sativa)

“…EB-2+UEB-2 developed from the combination of growth promoting organics like seaweed and humic acid. Hamdani et al (2017) also reported that wheat grown under application of recommended fertilizer dose along with biochar resulted in maximum increase in plant height (33%).…”

Influencia del biocarbón aplicado al suelo sobre atributos de rendimiento y calidad de avena forrajera

“…Por ello, podría sugerirse que la mayor altura registrada, en el presente estudio, pudo deberse a tal efecto, puesto que se realizó la aplicación de potasio junto con el BC. Asimismo, Fawad et al (2017) registraron hasta 33% mayor AP cuando aplicaron BC en relación al control; ellos concluyeron que el BC disminuye la pérdida de los fertilizantes aplicados, debido a su capacidad de adsorción. En este mismo sentido Ahmad et al (2011) y Torres-Moya et al (2016 mencionan que con la adición de fertilizantes se mejora el desarrollo del cultivo de avena.…”

“…Por otro lado, el BC ha influido positivamente sobre las poblaciones y la actividad de los microorganismos benéf icos para las especies vegetales (Akhtar et al, 2015;Liao et al, 2016;Tripti et al, 2017). Por consiguiente, impactos positivos sobre la germinación (Clay et al, 2016), crecimiento y desarrollo de los cultivos (Pérez- Salas et al, 2013;Fawad et al, 2017;Liu et al, 2017a), y producción de biomasa pueden ser generados (Lou et al, 2016). Esto podría traducirse en mejores rendimientos de los cultivos (Mackie et al, 2015;Dai et al, 2016;Plaza et al, 2016;Zhang et al, 2016b;Mia et al, 2017;Trupiano et al, 2017).…”

Effect of different levels of nitrogen and charcoal on growth and yield traits of chili (Capsicum annuum L.)

“…According to Ref. [ 47 ]; 1% biochar combined with lower fertilizer doses can successfully boost wheat growth, yield, nutritional content, and absorption. When compared to merely fertilizer application, the synergistic effect of charcoal plus fertilizer treatments enhances yield [ 48 ].…”