An experiment was performed to investigate the effect of integrated phosphorus management with previously applied biochar at the University of Agriculture, Peshawar during 2018–2019. The treatments comprised of two levels of biochar (10 tons ha⁻¹ and no biochar) and three sources of P {Farmyard manure, poultry manure, and an inorganic source di-ammonium phosphate}. The phosphorous sources were added in such a manner that 100, 75 and 50% of P were received from the organic sources and the remaining were obtained from the inorganic source and vice versa @ 100 kg P ha⁻¹. This experiment was much needed for our conditions to formulate the recommended organic and mineral fertilizers for our soil, because our famers uses mineral fertilizers without any specific calculation and time which degrade and erode the soil day by day. The experiment was designed in RCB and repeated three times. The size of plot was kept as 21 m² with strong ridges around each plot. Biological yield (7829 kg ha⁻¹), grain yield (3200 kg ha⁻¹), soil organic matter (1.71%), soil P content (4.28 mg kg⁻¹), straw P content (0.07%) and grain P content (0.21%) were significantly greater with 10 tons ha⁻¹ of residual biochar treatment. However, more thousand grain weight (52.3 g), soil organic matter (2.05%), straw P content (0.096%) and grain P content (0.25%) were significantly enhanced with the application of 100% P from PM only whereas, biological yield (9789 kg ha⁻¹) and grain yield (4334 kg ha⁻¹) were enhanced with application of P as 50% from PM and 50% from DAP. Soil phosphorus was significantly increased with the application of FYM. These results suggested that addition of biochar at the rate of 10 tons ha⁻¹ in the previous season along with 100% P from PM in the current season improved yield and yield components and soil physico-chemical properties and is therefore recommended for Peshawar valley.

在白沙瓦农业大学进行了一项实验，研究了磷综合治理与先前应用的生物炭在2018–2019年之间的效果。处理包括两种生物炭水平（10吨公顷^-1，无生物炭）和P的三种来源{农家肥，家禽粪便和无机来源磷酸二铵}。添加磷源的方式应是从有机源接收100％，75％和50％的P，其余部分从无机源获得，反之亦然@ 100 kg P ha ^-1。由于我们的农民使用的矿物肥料没有任何特定的计算方法和时间，因此会逐渐降解和侵蚀土壤，因此我们的条件非常需要此实验来为土壤配制推荐的有机和矿物肥料。实验是在RCB中设计的，重复了3次。地块的大小保持为21 m ²，每个地块周围都有强烈的山脊。生物产量（7829 kg ha ^-1），谷物产量（3200 kg ha ^-1），土壤有机质（1.71％），土壤P含量（4.28 mg kg ^-1），秸秆P含量（0.07％）和谷物P含量10吨ha ^-1（0.21％）显着更大剩余生物炭处理。然而，仅施用100％的PM，显着提高了千粒重（52.3 g），土壤有机质（2.05％），秸秆P含量（0.096％）和P含量（0.25％），而生物施用P量为50％的PM和DAP量为50％的小麦可提高产量（9789 kg ha ^-1）和谷物产量（4334 kg ha ^-1）。随着FYM的应用，土壤磷显着增加。这些结果表明，上一季节以10吨ha ^-1的比例添加生物炭以及本季节PM中100％P的添加改善了产量和产量构成及土壤理化特性，因此建议在白沙瓦谷中使用。