Effect of Effluent from Biodigestion of Pre-Treated Rice Bran and Animal Manure on the Dry Matter Yield and Nutrient Uptake of <i>Amaranthus viridis</i>  

作　　者：Oluwakemi Florence Ojo Gbolabo Abidemi Ogunwande Olusola Olajumoke Adesanwo Francis Tope Olatoberu Oluwakemi Florence Ojo;Gbolabo Abidemi Ogunwande;Olusola Olajumoke Adesanwo;Francis Tope Olatoberu(Institute of Ecology and Environmental Studies, Faculty of Science, Obafemi Awolowo University, Ile-Ife, Nigeria;Department of Agricultural and Environmental Engineering, Faculty of Technology, Obafemi Awolowo University, Ile-Ife, Nigeria;Department of Soil Science and Land Resources Management, Faculty of Agriculture, Obafemi Awolowo University, Ile-Ife, Nigeria)

机构地区：[1]Institute of Ecology and Environmental Studies, Faculty of Science, Obafemi Awolowo University, Ile-Ife, Nigeria [2]Department of Agricultural and Environmental Engineering, Faculty of Technology, Obafemi Awolowo University, Ile-Ife, Nigeria [3]Department of Soil Science and Land Resources Management, Faculty of Agriculture, Obafemi Awolowo University, Ile-Ife, Nigeria

出　　处：《Food and Nutrition Sciences》2021年第12期1255-1268,共14页食品与营养科学（英文）

摘　　要：The effect of effluents from biodigestion of pre-treated rice bran in combination with two types of animal manure on dry matter yield of <i>Amarathus</i><span> <i>viridis</i></span> was investigated using two pre-treatment methods: Soaking in ordinary distilled water and boiled in distilled water at 100&degC. The pre-treated rice bran and animal manure were mixed (w/w basis) to give carbon to nitrogen ratio of 35:1 and 37:1 prior to loading into the digester to make eight different treatment combinations as follow: 1) Cow dung with no rice bran (NRB + CD);2) Raw rice bran + cow dung (RRB + CD);3) Soaked rice bran in ordinary distilled water + cow dung (SRB + CD);4) Boiled rice bran + cow dung (BRB + CD);5) Poultry manure with no rice bran (NRB + PM);6) Raw rice bran + poultry manure (RRB + PM);7) Soaked rice bran + poultry manure (SRB + PM);8) Boiled rice bran + poultry manure (BRB + PM). Samples of different treatment combinations were collected before digestion, both the samples and resultant effluents were subjected to elemental analysis using AAS. The effluents from the biodigestion of these combinations were applied at two rates (80 and 150 kg N ha^-1) to 3 kg air-dried and sieved soil samples (0 - 20) cm in the greenhouse, control (0 kg N ha^-1) and reference pot with NPK fertilizer at the 80 kg N ha^-1 were arranged in a completely randomized design replicated three times. Amaranthus plants were introduced into each treated pot, left for four weeks before harvest, dry matter yields were recorded. Results of chemical analysis of raw materials and effluents obtained after biodigestion revealed th<span>e presence of all plant nutrients in both the raw materials and resultant </span>effluents though the former had higher values in some nutrients than the effluent, for examples treatment combination of CD, the values for organic carbon (42.85%), Ca (3.41%) and Mg (0.61%) were higher than in the resultant effluent for CD, a similar trend was observed with other treatment combinationThe effect of effluents from biodigestion of pre-treated rice bran in combination with two types of animal manure on dry matter yield of <i>Amarathus</i><span> <i>viridis</i></span> was investigated using two pre-treatment methods: Soaking in ordinary distilled water and boiled in distilled water at 100&degC. The pre-treated rice bran and animal manure were mixed (w/w basis) to give carbon to nitrogen ratio of 35:1 and 37:1 prior to loading into the digester to make eight different treatment combinations as follow: 1) Cow dung with no rice bran (NRB + CD);2) Raw rice bran + cow dung (RRB + CD);3) Soaked rice bran in ordinary distilled water + cow dung (SRB + CD);4) Boiled rice bran + cow dung (BRB + CD);5) Poultry manure with no rice bran (NRB + PM);6) Raw rice bran + poultry manure (RRB + PM);7) Soaked rice bran + poultry manure (SRB + PM);8) Boiled rice bran + poultry manure (BRB + PM). Samples of different treatment combinations were collected before digestion, both the samples and resultant effluents were subjected to elemental analysis using AAS. The effluents from the biodigestion of these combinations were applied at two rates (80 and 150 kg N ha^-1) to 3 kg air-dried and sieved soil samples (0 - 20) cm in the greenhouse, control (0 kg N ha^-1) and reference pot with NPK fertilizer at the 80 kg N ha^-1 were arranged in a completely randomized design replicated three times. Amaranthus plants were introduced into each treated pot, left for four weeks before harvest, dry matter yields were recorded. Results of chemical analysis of raw materials and effluents obtained after biodigestion revealed th<span>e presence of all plant nutrients in both the raw materials and resultant </span>effluents though the former had higher values in some nutrients than the effluent, for examples treatment combination of CD, the values for organic carbon (42.85%), Ca (3.41%) and Mg (0.61%) were higher than in the resultant effluent for CD, a similar trend was observed with other treatment combination

关 键 词：BIOGAS Rice Bran Animal Manure EFFLUENTS Yield Nutrient Uptake 

分 类 号：S51[农业科学—作物学]