Soybean Yield Response of Biochar-Regulated Soil Properties and Root Growth Strategy

Continuous cropping obstacles limit soybean production. Biochar is beneficial for growth, but it unclear whether biochar performs a sustainable role in continuous cropping. To further explore the effects of on soil properties and ceramic Wagner pot-simulated field experiment was conducted with at different doses (12, 24, 48 t·ha−1) over period 3 years, no fertilizer, (CK) fertilizer (F)treatments were used comparison. The results showed that significantly reduced bulk improved rhizosphere pH, available nutrients (N, K), total (C, N, P, K) compared CK F. Moreover, root length, surface area, volume, exudates increased amendment. In particular, nodule number, dry weight, nitrogenase activity soybean. Furthermore, promoted growth yield. general, we found yield had positive, effect providing new cultivation measure health production cropping, which very important increasing productivity to break limitations traditional cultivation.