Livestock-Based Farming Systems, Renewable Resources and the Environment
In order to compare the efficiency of fertilizing different types of organic manures and inorganic fertilizer on the biomass and characters of some active substances in Phyllanthus amarus plant, about 1650 plants were grown in a complete randomized design (CRD) with five treatments and three replicates. The treatments were based on types of manure used no manure (MN), adding NPK in the soil (IOF), chicken manure (CHM), pig manure (PM) and cow manure (CM). Each replicate had a surface of 4.5m2 (1.5m x 3 m) called plot and for the fertilized treatments, each plot were added with manures or NPK to obtain the same total nitrogen of 68g. Dry matter of total whole plants on 1m2 of CHM, PM, CM and IOF treatments were all significantly higher than that of NM treatment (0,41 ± 0,11; 0,44 ± 0,1; 0,39 ± 0,1; 0,31 ± 0,13> 0,18b ± 0,01P<0.001). There were significant differences between DM of stems, leaves and roots from CHM, PM, CM, IOF treatments and that of NM treatment (stems: 118± 31,4; 124,2 ± 51,2; 105,9 ± 16,3; 102,2 ± 46,3>48 ± 9,8, P<0.05; leaves: 162,6 ± 26,7; 138 ± 27,5; 109,1± 21,3; 144,8 ± 49,1 > 103,8 ± 21,3, P<0.05; roots: 24,1 ± 4,3; 23,3 ± 2; 22,5 ± 2,5; 23,8 ± 7,6> 16,7 ± 3,8, P<0.05). The length of roots and stems from plants fertilized by animal manures and IOF were significantly longer than that of NM treatment (P<0.05; P<0.01). Phyllanthin, hypophyllanthin and niranthin concentrations in roots of no manure treatment were significantly higher than those of animal manure and IOF treatments (P<0.05). Total hypophyllanthin, niranthin contents in roots of 1m2 from animal manure and IOF treatments were markedly lower than that of no manure treatment (P<0.05). However, total hypophyllanthin content in leaves of 1m2 from animal manure treatments and IOF treatment were all higher than that of no manure treatment (P=0.05). Moreover, total phyllanthin, niranthin contents in leaves of 1m2 from animal manure and IOF treatments tent to be higher than that of no manure treatment.