Rice is not just a staple food; but it is at the center of culture, politics, and economy of Bangladesh. The determinants affecting the adoption of modern rice cultivars and their adaptability in the Aman season (June to November) at the Faridpur region in Bangladesh were discussed. A total of 500 farmers from five different districts such as, Faridpur, Madaripur, Shariatpur, Rajbari, and Gopalganj through multistage sampling technique participated in the survey. Before the survey, 15 farmers were selected for the cultivation of eight modern T. Aman rice cultivars in their fields during three consecutive years 2018 to 2020 in the mentioned five districts of Bangladesh. A structured questionnaire was used to identify the determinants associated with the adoption of modern rice cultivars by replacing the popular old ones. Results revealed that beyond preferences, some other determinants (age, education, risk aversion, land size, yield, and perception of modern rice cultivars and their seed availability) directed the decision to adopt or not. Considering the average grain yield of the tested rice cultivars, the genotypes BRRI dhan72 (G-6) and BRRI dhan87 (G-8) were the high yielding cultivars for the above five districts. Despite having a comparatively low yield, the cultivars BRRI dhan71 (G-4) and BRRI dhan49 (G-3) were more stable compared to other cultivars in the Faridpur region of Bangladesh.

Insufficient zinc (Zn) and water are key concerns in agricultural production, resulting in lower yields and nutritional qualities. The goal of the study was to figure out how water management and Zn application rates affect the growth and yield of rice. The experiment was carried out in a split-plot design with three replications. The treatments consisted of two factors, a) water management, like 1) Continuous flooding (CF) and 2) Alternate wetting and drying (AWD) system and b) Zn application like 1) Control (0% Zn), 2) 75% Zn, 3) 100% Zn, 4) 125% Zn, and 5) 150% Zn of the recommended dose. All the plots received an equal amount of NPKS fertilizers. The application of Zn in both AWD and CF systems had a significant effect on a number of grains panicle -1 , 1000 grain weight and grain yield. The highest value for both yield contributing traits and yield was obtained by the application of 150% Zn in the AWD system. However, the lowest value was found in the control treatment of the CF system for both the yield components and yield. It is also evident that the growth rate of yield components and yield was increased with increased doses of Zn in both AWD and CF systems. In Bangladesh, farmers involved in rice cultivation may be benefited following the treatment of 150% Zn and AWD irrigation systems.

Plant health is a very important factor in the agriculture system. The presence of plant hormones such as Auxin, gibberellic acid, and siderophores with variation numbers in the plant gives different effects on plant health. Related to the environment rich with rhizobacteria, they have a unique function because rhizobacteria can produce a chemical compound known as Plant Growth Promoting Rhizobacteria (PGPR). The purpose of the research is to study the production of auxin, gibberellic acid, and siderophore from rice rhizobacteria as the source of potential hormones for plant growth. Ten rhizobacteria isolates have been isolated from the rice rhizosphere. They are potential candidates as biofertilizers and biopesticide agents. The hormone production from each isolate was tested by spectrophotometric methods: Auxin at a wavelength of 535 nm with Salkowski's reagent, gibberellic acid at 254 nm, and siderophores at 560 nm with Hardaway's reagent. The results showed the highest auxin hormone was obtained from isolate 10 (3.374 ppm), the highest gibberellic acid from isolate 4 (3.960 ppm), and the highest siderophores hormone from isolate 2 (2.910 ppm). The conclusion of the research is, plant growth regulator from rice rhizobacteria has the potential increasing plant health.

Kelompok Tani dilatih untuk meningkatkan produksi tanamannya dengan memberi pengetahuan tentang pemanfaatan limbah, khususnya limbah sayuran rumah tangga menjadi pupuk alami berupa pupuk Cair Organik (POC) dan memberi petunjuk cara aplikasinya. Tujuan pengabdian ini adalah untuk memberikan pengetahuan bagi anggota kelompok tani dalam pembuatan POC dari limbah sayuran dengan input biaya dan pembelian pupuk yang rendah sehingga dapat meningkatkan produksi. Persoalan dalam kelompok tani adalah produksi tanaman pangan dan hortikultura rendah, produktivitas lahan rendah akibat penggunaan pupuk anorganik, keterbatasn modal membeli pupuk yang kadang tidak tersedia saat tanaman sudah perlu dipupuk, ketergantungan pupuk anorganik dan belum adanya pengetahuan mitra tani ini tentang pemanfaatan limbah sayuran dari rumah tangga untuk dapat dijadikan menjadi pupuk. Permasalahan ini perlu diatasi dengan peningkatan pengetahuan dan keterampilan melalui teknologi praktis, murah, menguntungkan sehingga produksi meningkat tanpa tergantung dengan biaya pemupukan tinggi. Target yang telah dicapai adalah penyediaan produk pupuk alami dan larutan penyedia hara serta cara aplikasinya pada tanaman pangan dan hortikultura. Metode yang dipakai pada program pengabdian ini adalah metode demonstrasi dan partisipasi. Kelompok tani diikutkan mulai dari pemberian pengetahuan tentang pemanfaatan limbah sayuran jadi pupuk alami, pelatihan pembuatan pupuk cair organik dari limbah sayuran rumah tangga, dan cara aplikasinya pada tanaman. Hasil pada pengabdian ini adalah produk pupuk alami berupa pupuk organik cair dan petunjuk penggunaannya.

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