Sonic bloom is a technology that combines high frequency sound waves and organic nutrients, intended for better plant growth to increase its productivity. This study aimed to determine the effect of sound wave frequency and drought stress on stomatal opening, nutrient uptake efficiency through leaf, and soybean yield. We designed the research as a split plot experiment. The main plot was sound wave frequency consisting of four levels (no frequency imposed, frequencies 2, 4 and 6 kHz. The sub-plot was three soil moisture contents (50,75, and 100% field capacity). We found that the interaction of frequency and soil moisture content affected the width of stomata at the age of 30,40 and 50 days after planting (dap), the efficiency of nitrogen uptake, phosphorus uptake and potassium uptake and the protein content of seeds. The width of stomatal opening at a frequency of 4 kHz in soil moisture 100% FC showed the highest value and was not significantly different from soil moisture 75% FC. There was a positive correlation between exposure to plants with a frequency of 4 kHz with stomatal opening, nutrient uptake and increased yield of soybean crops. The use of sonic bloom technology with plant exposure at a frequency of 4 kHz could increase drought tolerance to 75% soil moisture content. Soybean seed yield increased by 40.89% and seed protein content increased by 10.3%.
Since the productivity of soybean in Indonesia is still low, a new innovation is needed to improve it. The objectives of this study are to determine a pattern of the stomatal opening of soybean's leaves which exposed by high-frequency sound waves with different duration time and age of soybean plants. This study was carried out at the Experimental Farm Agriculture Faculty and Biology Laboratory of Science Faculty of the Islamic University of Malang, East Java in April to August 2013.The first factor was duration time of the exposure which consist of three levels: 20 minutes (D 1 ), 40 minutes (D 2 ) and 60 minute (D 3 ).The second factor was the age of the soybean which consist of three levels: 15 days after planting (dap) (A 1 ), 25 dap (A 2 ) and 35 dap (A 3 ). The soybean plants were exposure by the 5000 hertz frequency. The variables measured consisted of stomatal opening width, plant height, leaf area, fresh weight of pods, fresh weight of seed, oven dry weight of beans and harvest index. Increase of the duration time of exposure of high frequency sound waves by 20 to 60 minutes, tends to decrease the width of stomatal opening. The treatment of duration of exposure by 40 minutes at the age of 15 dap had the highest soybean grain yield by 24.10 g.plant . The relationship between the widths of the stomatal opening with soybean production showed no significant correlation. The results of this study suggest that maintaining stomatal opening at optimum width through the manipulation of high-frequency sound waves will increase the yield of soybean plants.
The purpose of this study was to assess ethnoecology and ethnomedicine as support for marine conservation in Bangsring Under Water (Bunder) Banyuwangi. This research used descriptive exploratory techniques. The samples were done using random sampling techniques. The results of ethnoecology studies are as follows: 63% of respondents knew the Bunder area as a conservation area of coral reefs; 61% of respondents stated that they have access to the socio-ecological Bunder, 79% of respondents knew how to use the fish in Bangsring village, 71% utilize fish in Bunder, 72% of respondents see the type of fish that is used by the community, 45% of respondents knew how to preserve local fish. The results of the ethnomedicine study showed that 83% of respondents knew about medicinal plants, 83% of respondents have used medicinal plants, 88% of respondents knew how to use medicinal plants, 72% of respondents never planted medicinal plants, 85% of respondents identified the plant parts used drugs, 9% respondents are interested in using medicinal plants, 81% of respondents need to cultivate medicinal plants. Bunder ecologically waters have a positive impact on people’s lives. People use these waters for tourism and livelihood as a fisherman, as a conservation area. In the Etnomedisin aspect, the community had an enthusiastic response to the medicinal plants. There are 25 species of medicinal plants used by the community as a medicine. The survival of medicinal plants in Bangsring Village is weel guaranteed due to the high interest of the community to keep the sustainability of medicinal plants.
Warga kelurahan Kedopok kec. Kedopok Probolinggo telah lama membudidayakan ternak sapi potong yang dilakukan secara berkelompok. Keberadaan kelompok peternak sapi ini telah mendapatkan dukungan usaha dari dinas peternakan setempat dan pemda Probolinggo namun dirasakan peternak masih kurang karena beberapa sarana penting belum dimiliki diantaranya instalasi biogas.Pekerjaan utama dari peternak adalah petani atau buruh tani dengan pekerjaan sampingan sebagai peternak sapi. Rata-rata tiap peternak memiliki 2-3 ekor sapi yang dikumpulkan jadi 1 kandang milik bersama dan dikelola bersama baik masalah pakan, pengelolaan kandang, bibit sapi, penjualan dan pembelian sapi. Tujuan khusus kegiatan IbM adalah : (1) pengembangan biogas ternak sapi guna meningkatkan kemandirian kelompok peternak sapi masyarakat Kedopok kec. Kedopok Probolinggo. (2) Meningkatkan pengetahuan kelompok peternak sapi dalam mengelola biogas kotoran ternak. Hasil yang dicapai : (1) Tersedianya peralatan berupa instalasi biogas. (2) Terlaksananya pelatihan biogas dan pupuk cair (3) Tersedianya kompor biogas. Dengan mengadakan pelatihan dan pendampingan dalam hal : (1) Membangun instalasi biogas dengan bahan kotoran sapi sebagai sumber energi panas. (2) Pelatihan dan pendampingan dalam pemanfaatan instalasi biogas. (3) Melakukan pelatihan dalam membuat pupuk cair.
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