马来西亚泥炭土中总氮含量比较丰富,约占其干物质的1.5％(在30厘米深的表土中相当于10.5吨/公顷)。但在自然条件下,通常以矿质形态存在的氮还不到1％,其余为植物不能利用的有机氮。以前的试验表明,与施非氮质无机肥料和水相比,施石灰可使泥炭土中的氮有较高的矿化率。然而这样的矿化氮不能充分满足泥炭土上牧草生长的需要,因此,为了获得最适牧草产量,有必要大量增施氮肥。鉴于几内亚草和象草是两种高产牧草,具有在泥炭土上大规模生产的潜力, The total nitrogen content in peat soil in Malaysia is relatively abundant, accounting for about 1.5% of its dry matter (equivalent to 10.5 tonnes / ha in 30 cm of topsoil). However, under natural conditions, less than 1% of the nitrogen is usually present in mineral form and the balance is organic nitrogen that plants can not utilize. Previous experiments have shown that lime application results in higher rates of mineralization of nitrogen in peat soil compared to non-nitrogenous inorganic fertilizers and water. However, such mineralized nitrogen does not adequately meet the need for pasture growth on peat so that it is necessary to increase the use of nitrogen fertilizers in order to obtain optimum forage yield. Given that Guinea-grass and grass-weeds are two high-yielding forages with the potential for large-scale production on peat soils,