Dept. of Agroforestry And Environment

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    RICE YIELD (BINA dhan17) INFLUENCED BY THE DISTANCE OF MANGO BASED AGROFORESTRY SYSTEM
    (HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR-5200, BANGLADESH, 2023-12) PARVIN, KHURSHIDA; Bari, Professor Dr. Md. Shafiqul; Rahman, Dr. Md. Shoaibur
    A field experiment was conducted at Kholora, Haripur, Thakurgaon District, from July 2023 to October 2023 to assess the economic performance of BINA dhan17 under various distances from mango tree base as mango-rice based agroforestry system. The experiment was laid out following the Randomized Complete Block Design (RCBD) with three (3) replications. Total no of experimental plots were 12. The treatments of the experiment were T1=one meter distance, T2=two meter distance T3= three meter distance and T4= four meter distance of rice cultivation from the mango base tree. The data were recorded on growth and yield performance of rice. In case of economic analysis the benefits and cost ratio was calculated. The results of the research revealed the highest matured plant height significantly (133.50cm) was observed at 3 meters (T3) distance and the lowest was (125.43cm.) at 1 meter (T1) distance from mango tree base. Similarly, the number of tillers/hill showed in matured plant significant variations with T4 (8.80) recording the maximum and T1 (7.13) the minimum. The highest effective tiller/hill was (6.80) in T4 and the lowest was (5.33) in T1, while the highest non-effective tiller/hill was (2.00) in T4 and the lowest was (1.33) in T2 which was statistically similar in T3. The highest panicle length of rice was found (26.10 cm) in T4 and the lowest was (24.33) from T1. The maximum effective grain/panicle of rice (286.00) was found in T4 and the minimum (186.33) was obtained from T1. The 1000 grain weight of rice highest (24.90g) was found in T4 and the lowest (21.20g) was obtained from T1. The highest grain weight/hill of rice (29.56g) was found in T4 and the lowest (20.74g) was from T1. The highest straw/hill of rice (23.60g) was found in T2 and the lowest (21.03g) was obtained from T1. The highest grain yield of rice per hectare (9.74ton) was found in T4 and the lowest (6.65ton) was obtained from T1. The highest straw yield of rice/ha (7.86ton) was found in T2 and the lowest (7.01ton) was obtained from T1. The highest gross return (460808Tk./ha) was obtained from the mango-rice based agroforestry system and the lowest (399484Tk./ha) was obtained from open field of rice BINA dhan17. The highest net return (281264Tk./ha) was obtained from the mango-Rice based agroforestry system and the lowest (196718Tk./ha) was obtained from open filed of rice BINA dhan17. The highest benefit-cost ratio of 2.57 was recorded from the mango-rice based agroforestry system and the lowest 1.97 was observed in open field. Therefore, farmers of northern part of Bangladesh can grow BINA dhan17 with mango tree as agroforestry system maintaining at least two meters distance from mango tree base for better monetary return. Key words: mango, rice, agroforestry, tree base di
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    UNVEILING ECOSYSTEM SERVICES POTENTIALS OF HOMESTEAD AGROFORESTS OF NORTHERN BANGLADESH
    (HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR-5200, BANGLADESH, 2024-06) MUNNI, MOST. AFROJA KHATUN; Hanif, Professor Dr. Md. Abu; Bari, Professor Dr. Md. Shafiqul
    Homestead agroforests with diverse plants have the potential to generate ecosystem services. The aim of the study was to investigate the above-ground biomass (AGB), above ground carbon (AGC), and soil organic carbon (SOC) and its driving factors. The study was conducted in the homestead forests of Panchagarh districts in Northern Bangladesh. A stratified sampling method was applied to collect socioeconomic information, vegetation and soil sample data. A total of 104 households were surveyed for data collection. The socioeconomic conditions of the homesteads were collected by semi-structured questionnaire; vegetation information and soil samples (0-30cm depth) were collected from a 20m × 20m quadrants laid in the homestead. The socioeconomic results revealed that the maximum number of respondents were middle- and old-age, with small families possessing secondary-level education. The respondents belong to the marginal farm size (43.4%) category of the low-income (59.6%) category. The maximum households had four decades of conventional and agroforestry farming experience. The mean AGB and AGC of the study area were 27and 10.78Mgha-1. The respondents mentioned that the percentage of provisioning, regulating, and cultural service supply was 34%, 36%, and 30%, respectively. The problem finding index (PFI) revealed that the major problems faced by the households were lack of training on managing homegardens (PFI-289.4) followed by the attack of insects, pest and diseases (PFI-282.7). In case of soil composition, SOC, SOM and TN were 2.19%, 3.78% and 0.28% while TP and TK were 89.80μg/g and 1.24 meq/100g of soil.AGC was positively correlated with tree height and DBH while negatively correlated with soil pH. Finally, it might be concluded that the homegarden agroforests have the potential to mitigate climate change effect by sequestering atmospheric carbon and supply ecosystem services for the communities around the World.