On field Inoculation for the Decomposition of crop residue in lowland rice production [manuscript]
| dc.contributor.author | Orlando N. Landingin, Jr. | |
| dc.date.accessioned | 2025-09-04T08:28:20Z | |
| dc.date.available | 2025-09-04T08:28:20Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | Recycling of crop residues in agriculture through the use different decomposer can change microbial processes, which affect nutrient availability and hence crop yield. In depth studies on the characteristics of crop residue decomposition are of great importance for achieving sustainable agricultural development. The aim of the study was to determine the mass loss and chemical changes during the decomposition of crop residues in an open field; determine the effect of composted crop residue in soil properties, and quantify the rate of decomposition of crop residue by the different biological decomposers. Decomposition of crop residue was studied by using three different treatments, (T1) control (T2) Collembola, (T3) Trichoderma and (T4) Effective Microorganism. Low land rice production located at Brgy. Palusapis, Science City of Munoz, Nueva Ecija wa the experimental site used in the study. Mass loss of crop residue decreased gradually as the decomposition rate increased over time. The parameters in mass loss showed that treatment with Collembola, Trichoderma, and EM have no significant difference from each other. However, control (T1) showed significant difference from the other treatments, wherein treatment with Collembola (T2) had the lowest mass loss. Rice residue increased from 0 to 9.2 mg/day, after the 9 weeks of incubation decay rate varied from 0-9.2 mg/day for T2 0-8.37 mg/day in T3 0-7.39 mg/day for T4 and the lowest decay rate was T1 0-5.77 mg/day. The parameters of decay rate showed that all treatments has a significant difference with each other, Collembola treatment (T2) has the highest decay rate with (5.92) which is significantly different from EM (T4) and control (T1) but with the same effect as in Trichoderma (T4) 4.95. In the treatment containing Trichoderma, the CN ratio of crop residue decreased from 70.45 to 36.44 after 9th weeks of decomposition of crop residue. Trichoderma treatment (t3) decreased the CN ratio from 70.45 to 36.44. Meanwhile a decrese from 70.45 to 3826 was observed in Collembola treatment (T2). Then 70.45 to 39.44 for the EM treatment (T4) and for control (T1), the CN ratio decreased from 70.45 to 40.96. The parameters in CN ration shows a non significant difference in each other. Thus, inoculation with Trichoderma resulted with the lowest C:N ratio of 36.44. Accordingly, the soil parameter were not significantly different from each other. Since the effect of decomposition is not immediately evident in the soil parameters, statistics show comparable values. This implies that in a short period of time, the application of rice residue treated with different biological decomposers has no immediate effect on the fertility of the soil. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/362 | |
| dc.language.iso | en | |
| dc.title | On field Inoculation for the Decomposition of crop residue in lowland rice production [manuscript] | |
| dc.type | Thesis |