Investigation was carried out on leaf litter decomposition and nutrient content of three agroforestry species—Annona muricata L., Senna siamea (Lam.) and Cola nitida (Vent.) using litterbag technique. Oven-dry leaf litters of each species were put in 432 litterbags of 23 g each. These were divided into two sets with one placed on the soil surface (SSP) and another, soil incorporated (SIP). Initial nutrient content (INC), decay constant, half- and full-lives (weeks) were determined. Decomposition rates, nutrient release patterns (NRP) and litter quality were measured fortnightly for 24 weeks after litter placement (WALP). Data collected were subjected to descriptive statistics and ANOVA at α_0.05. The INC was significantly different among the species. N concentration decreased from C. nitida A. muricataS. siamea. P was significantly higher in S. siamea (0.38%) than C. nitida (0.22%) and A. muricata (0.32%). Decay constant was highest (0.005) in C. nitida under SIP. Highest half-life (49.5 weeks) and full-life (178.57 weeks) were recorded in S. siamea and C. nitida; and S. siamea and C. nitida under SSP. After 24 weeks, C. nitida had the highest decomposition rate, 5.97 ± 0.0 under SIP. NRP showed that A. muricata and S. siamea had the highest P (0.17%) and cellulose (28.2%) at 24 WALP under SIP. Lignin concentration at 24 WALP was highest in S. siamea (4.35%) and least in C. nitida (0.43%). Decomposition trend and nutrient release pattern from the leaf litters of selected agroforestry species indicated the potential of these leaf litters to offer nutrients on a sustainable basis in an agroforestry system.

 使用垃圾袋技术，对三种农林物种——Annona muricata  L. ，Senna siamea  （Lam。）和 Cola nitida（Vent。）的叶片凋落物分解和养分含量进行了研究。将每种种类的烤箱干燥的凋落物放入每个23 g的432凋落物袋中。将它们分为两组，一组放在土壤表面（SSP），另一组放在土壤中（SIP）。确定了初始养分含量（INC），衰变常数，半衰期和全衰期（周）。在放置垫料（WALP）后的24周内每两周测量一次分解速率，养分释放模式（NRP）和垫料质量。对收集到的数据进行描述性统计和方差分析（aNOVA）为_0.05。物种间的INC显着不同。N.浓度从 C. nitida A. muricata S. siamea降低。S. siamea  （0.38％）中的 P显着高于 C. nitida  （0.22％） 和A. muricata （0.32％）。在SIP下 ，尼氏梭菌的衰变常数最高（0.005）。在S. siamea和C. nitida中记录到最高的半衰期（49.5周）和全寿命（178.57周）。和S.刀木和C.箭竹SSP下。24周后，C。nitida的分解速率最高，在SIP下为5.97±0.0。NRP表明，A。muricata根据SIP，在24 WALP时，S。siamea和P. siamea具有最高的P（0.17％）和纤维素（28.2％）。木质素在24浓度WALP最高的是S.刀木（4.35％）和至少在C.箭竹（0.43％）。某些农林业物种的凋落物的分解趋势和养分释放模式表明，这些凋落物在农林业系统中可持续提供养分的潜力。