Asian Journal of Crop, Soil Science and Plant Nutrition最新文献

{"title":"Potassium and Weed Control Methods affected on Yield of Mungbean","authors":"M. H. Bhuiyan, M. Islam, T. Roy, S. Podder, S. Hossain","doi":"10.18801/ajcsp.010119.03","DOIUrl":"https://doi.org/10.18801/ajcsp.010119.03","url":null,"abstract":"Mungbean is very promising pulse crop in Bangladesh but imbalance use of fertilizer and inappropriate weed management are the key reason for substantially lower yield of mungbean. Therefore, the experiment was conducted at the research plot of Sher-e-Bangla Agricultural University farm, Dhaka during the period from February, 2017 to June, 2017 to study the effect of potassium levels and weed control methods on the growth and yield of mungbean. The treatment consisted of three potassium level viz. K 0 = Control (No Potassium), K 1 = Recommended dose of Potassium (R), K 2 = 30% increased of R and four weed control methods viz., W 0 = No weeding (control), W 1 = One hand weeding at 15 days after sowing (DAS), W 2 = Two hand weeding at 15 DAS and 30 DAS, W 3 = One paraxon spray at 15 DAS. The experiment was laid out in a two factors randomized complete block design (RCBD) with three replications. The seeds of BARI mung-6 variety were the test materials. The highest plant height (45.30 cm), number of branch (10.54 cm), number of leaflets (17.00) and dry weight plant - 1 (7.30) was observed K 2 ×W 2 treatment. The highest plant height (27.90), pod length (9.48 cm), seeds pod -1 (10.22), weight of 1000 seeds (41.75 g), seed yield (1.63 t ha -1 ), strove yield (2.76 t ha -1 ), biological yield (4.37 t ha -1 ) and harvest Index (37.13%) was observed in the 30% increased of recommended dose of Potassium with two hand weeding (K 2 × W 2 ). The lowest plant height (21.08) was observed control (No Potassium and no weeding) (K 0 × W 0 ). The results indicated that the plants performed better in respect of seed yield and others yield contributing characters in K 2 ×W 2 (30% increased of recommended dose of Potassium with two hand weeding) treatment than the control treatment K 0 ×W 0 showed the least performance. Treatment K 2 ×W 2 (30% increased of recommended dose of Potassium with two hand weeding) was found to the most suitable combination for the highest yield of mungbean. days after sowing (DAS), W 2 = Two hand weeding at 15 DAS and 30 DAS, W 3 = One paraxon spray at 15 DAS. The experiment was laid out in a two factors Split Plot design (RCBD) with three replications. Potassium was used as main plot. There were 12 treatment combinations and 36 unit plots. The unit plot size was 5.52 m 2 (2.4 m X 2.3 m). The fertilizers were applied as basal dose @ N, P and K as 20, 17 and 20 kg ha -1 at final land preparation respectively in all plots and Seeds were sown at the rate of 40 kg ha -1 .","PeriodicalId":186401,"journal":{"name":"Asian Journal of Crop, Soil Science and Plant Nutrition","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126098823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvement of yield of salt tolerant rice genotypes/varieties through gypsum application","authors":"M. Islam, Sakina M Khanam, Md. Shamiul Haque, Md. Tanjilur Rahman Mondal, Md. Al-Arafat Topu","doi":"10.18801/ajcsp.010219.04","DOIUrl":"https://doi.org/10.18801/ajcsp.010219.04","url":null,"abstract":"Salinity intrusion causes problems in the coastal areas of Bangladesh. Climate change creates hazards like cyclone, sea level rise, and storm surge have been increasing the salinity problem in many folds. The coastal region covers about 20% of the country, from where cultivable land more than 30%. Agricultural land uses in these areas are very poor, because of high content of salinity in Rabi season. Already, 830,000 million hectares of land already identified as affected by soil salinity. A field experiment was carried out at saline prone area, Suparishata, Sodor, Satkhira under natural salinity condition during Rabi season 2017-2018. The experiment was carried out with two varieties namely, V1=Binadhan-10, V2=BRRIdhan67 and four levels of gypsum with control G0: 0 kg ha-1, G1: 75 kg ha-1, G2: 150 kg ha-1 and G3: 225 kg ha-1. The experiment was laid out in a split plot design with three replications. The unit plot size was 3m x 4m. The recommended fertilizer doses applied for the experiment were 80 kg N ha-1, 15 kg P ha-1, 50 kg K ha-1. Nitrogen, phosphorus, potassium, sulphur and zinc were supplied from urea, TSP, MoP, gypsum and zinc sulphate monohydrate respectively while urea was applied in three equal splits. Application of silicon had significant effect on plant height, number of effective tiller m-2, length of panicle, total number of spikelets panicle-1, thousand grain weight, number of filled spikelets panicle-1, grain yield straw yield. It seems that the crop responded to the application of gypsum from 75-225 kg ha-1. Overall results suggest that an application of gypsum 225 kg ha-1 along with N, P, K, Zn and Boron might be necessary to ensure satisfactory yield of rice in saline prone area under natural salinity condition.","PeriodicalId":186401,"journal":{"name":"Asian Journal of Crop, Soil Science and Plant Nutrition","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121085825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of seedling age and potassium fertilizer on growth and yield of summer onion","authors":"","doi":"10.18801/ajcsp.040120.17","DOIUrl":"https://doi.org/10.18801/ajcsp.040120.17","url":null,"abstract":"An experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh to assess the effects of seedling age and potassium fertilizer to improve summer onion production (cv. BARI Piaj-3). The experiment consisted of two factors; Factor A: three seedling age, viz. 35; 40 and 45 days old and Factor B: four different doses of potassium, viz. 0; 40; 80 and 120 kg/ha-1. The experiment was laid out in a randomized complete block design with three replications. The effect of different seedling age and potassium fertilizer and their combined effects showed significant variations in growth and yield of onion. In case of seedling age, the highest plant height (56.58 cm), leaf number (12.37) per plant, leaf length (41.77 cm), yield of bulb per plot (1.96 kg) and yield of bulb (19.64 t/ha) were recorded from 45 day old seedling. In case of different doses of potassium, the highest plant height (58.82 cm), leaf number per plant (13.93), leaf length (43.69 cm), yield of bulb per plot (1.90 kg) and yield of bulb (19.00 t/ha) were recorded from 120 kg K ha-1. Combined effects of seedling age and potassium fertilizer exhibited significant variation on plant height at different days after transplant (DAT), leaf number per plant, leaf length, bulb diameter, pseudostem diameter, fresh weight of bulb, dry weight of bulbs, fresh weight of foliage, dry weight of foliage, yield of bulbs per plot and yield of bulbs (t/ha). The highest bulb yields per plot (2.31 kg) as well as per hectare (23.05 tons) were achieved from the treatment combination of 45 day old seedling and 120 kg K ha-1.","PeriodicalId":186401,"journal":{"name":"Asian Journal of Crop, Soil Science and Plant Nutrition","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121663376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the effects of six pesticides on soil bacteria in laboratory","authors":"Amani Ahmed F. Qardash, M. F. Al-Helali, Abdurahman Ali M. Thabet, Muath Abdumajeed Ba’abad","doi":"10.18801/ajcsp.010119.01","DOIUrl":"https://doi.org/10.18801/ajcsp.010119.01","url":null,"abstract":"The laboratory studies were conducted to determine the effects of six Pesticides at 3 concentrations (25%, 50% and 100%) respectively on total number of bacteria isolated from the soilin Dhale district, Yemen. The study included isolating and identifying the bacteria form the soil and the tolerance of these bacteria to common pesticides. Nutrient agar medium was used for the count of bacterial. The results showed a lack of numbers of all bacteria in the Nutrient Agar medium treated with Supermectin, Agrinate and Novacron to all (25%, 50% and 100%) concentrations, while the Shahin and Mores no inhibitory effect of 25% concentration, on the bacterial counts. Results showed that pesticides in the laboratory showed its effect on types bacteria in the Nutrient Agar medium and has been associated it effect by quantity additive concentration.","PeriodicalId":186401,"journal":{"name":"Asian Journal of Crop, Soil Science and Plant Nutrition","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116751251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of herbicides on weed control and performance of wheat","authors":"T. U. Wara, M. Begum, M. Kader, S. Rasul, M. Hasan, S. Monira","doi":"10.18801/ajcsp.030220.14","DOIUrl":"https://doi.org/10.18801/ajcsp.030220.14","url":null,"abstract":"An experiment was conducted to evaluate the weed control efficiency and wheat performance as affected by different types of herbicides at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from November 2016 to March 2017. The experiment was laid out in a randomized complete block design and consists of four replications and eleven treatments viz. no weeding (T0), L–Quat 20 SL as pre-emergence herbicide at 2 DAS (T1), Affinity 50.75 WP as post-emergence herbicide at 23 DAS (T2), T1 + T2 (T3), T3 + hand weeding at 40 DAS (T4), Panida 33 EC as pre–emergence herbicide at 2 DAS (T5), U–46D fluid as post-emergence herbicide at 23 DAS (T6), T5 + T6 (T7), T7 + hand weeding at 40 DAS (T8), T5 + T1 + T5 + T6 (T9), T5 + T2 (T10). Fourteen weed species namely Echinochloa cruss–galli, Echinochloa colona Cynodon dactylon, Digitaria sanguinalis, Paspalum distichum, Parapholis incurva, Cyperus rotundus, Chenopodium album, Polygonum hydropiper, Alternanthera sessilis, Oldenlandia corymbosa, Vicia sativa, Physalis heterophylla and Commelina diffusa were infested the experimental field belonging to 9 families where six were grasses, one was sedge and seven were broadleaves. Five most dominant weed species based on importance value in unweeded conditions at 15 DAS were Polygonum hydropiper > Cyperus rotundus > Echinochloa colona > Chenopodium album > Cynodon dactylon. But at 40 DAS and harvest the rank and order of above mentioned five most dominant weed species was differed and Commelina diffusa and Echinochloa cruss–galli were found at 40 DAS and at harvest, respectively instead of Chenopodium album. Both the weed density and dry weight were lowest in T8 treatment followed by T4 treatment at 15 DAS, 40 DAS and harvest. In case of weed control efficiency, these treatments along with T3, T4, T7, T8, T9 and T10 treatments produced the best result as “good control” in comparison to others which produce “fair control” efficiency at 40 DAS. But at harvest, only T4 and T8 produced as “good control” efficiency. The yield and yield components of BARI Gom 24 (Prodip) were statistically significant except the number of non–effective tillers hill–1. The highest grain yield (5 t ha–1) was recorded in the treatment T8 which was statistically identical to the treatment T4 due to having higher number of effective tillers hill–1, higher number of spikelets spike–1, higher number of filled grains spike–1 and 1000-grain weight. The lowest grain yield (2.9 t ha–1) was observed from the control (no weeding) treatment. The highest net returns (61473tk) and BCR (1.64) were obtained under the weed control T8 treatment. It can be concluded that the treatment T8 (Panida 33EC pre-emergence + U 46 D Fluid post–emergence + hand weeding once at 40 DAS) could be applied as the promising practice in wheat cultivation in terms of effective weed control, highest yield, highest economic returns and highest BCR.","PeriodicalId":186401,"journal":{"name":"Asian Journal of Crop, Soil Science and Plant Nutrition","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126343922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cost of production and cost benefit analysis of different rice in Sirajganj district","authors":"S. Chanda, M. A. Ali, M. Haque, M. Abdullah, A. Sarwar","doi":"10.18801/ajcsp.010119.02","DOIUrl":"https://doi.org/10.18801/ajcsp.010119.02","url":null,"abstract":"Appropriate agricultural practices have positive and sustainable impacts on rural farmers’ livelihood possessions and strategies to overcome the climate vulnerabilities. The benefit cost ratio (BCR) is a relative measure which is used to determine benefit per unit cost and helps farmers in decision making activities. A study was carried out in the Sirajganj district during 2017, to compare the cost and revenue of Aus, Aman and Boro rice, using benefit cost ratio technique. The Sirajganj district consists of nine upzilas. Ten farmers of each upzila were randomly selected and primary data were personally collected from the respondents through structural questionnaire. The data about Aus, Aman and Boro rice and their cost as well as returns were collected in farmers’ field. The collected data were then sorted, scrutinized and analyzed to achieve the goal set for the study. Results revealed that the total cost of production in Aus rice varied 40856-71353 Tk./ha, gross returns 90651-123889 Tk./ha, cost of per kilogram rice production was 9.87 – 15.45 Tk./kg and BCR 1.61-2.22. The total cost of Aman (Local) rice varied 43031-69067 Tk./ha, gross returns 57651-86889 Tk./ha, cost of per kilogram rice production was 14.98 21.40 Tk./kg and BCR 1.25-1.65. The total cost of Aman (HYV) rice varied 66111-78724 Tk./ha, gross returns 123321-164439 Tk./ha, cost of per kilogram rice production was 9.87-14.45 Tk./kg and BCR 1.70-2.22. The total cost of Boro (HYV) rice varied 89129-96886 Tk./ha, gross returns 164439208956 Tk./ha, cost of per kilogram rice production was 9.31-13.84 Tk./kg and BCR 1.90-2.31. The total cost of Boro (Hybrid) rice varied 92868-99684 Tk./ha, gross returns 205524-226083 Tk./ha, cost of per kilogram rice production 8.99-10.74 Tk./kg and BCR 2.10-2.36. Aus/Aman rice cultivation is eco-friendly i.e., needs less ground water, lower risk of early floods and hailstorms, etc.","PeriodicalId":186401,"journal":{"name":"Asian Journal of Crop, Soil Science and Plant Nutrition","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122554755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-crop habitat management: Promoter of natural enemies of crop pests","authors":"M. Mala, M. Baishnab","doi":"10.18801/ajcsp.060222.28","DOIUrl":"https://doi.org/10.18801/ajcsp.060222.28","url":null,"abstract":"Non-crop habitats provide essential resources for natural enemies such as plant-derived food, such as nectar or pollen, shelter, alternative prey, protection from pesticides and other disturbances, and moderate microclimate and hibernation sites. The main aim of habitat management is to offer a favourable ecological infrastructure within the landscape. Different ways of habitat management such as selecting appropriate plant species, understanding behavioural mechanism, maintaining the spatial scale and spatial arrangement with heterogeneity has a positive impact on conservation biological control. Harmful conditions are mitigated or favourable conditions are increased for natural enemies in conservation biological control. In previous days, conservation and biological control were not applied a lot, but it has gotten more attention. Natural pest management can be conducted at different spatial scales like at the landscape scale and at the field scale; natural pest management at the landscape scale through habitat management is focused on in this essay. In agricultural landscapes, non-crop habitats are comprised of hedgerows, field margin, road verges, fallows, meadows and often woody forests. Different agricultural pest species and many natural enemies are associated with these non-crop habitats. The proportion of habitat defines landscape complexity can influence the diversity of animals, plants and microorganisms. Ecosystem services that improve ecosystems through nutrient cycling, water regulation and pest suppression are positively influenced by landscape complexity that can help reduce pest density and crop injury. Habitat management has a higher level of opportunity to maximize multi-functional ecosystem services through a wider scale of landscape management. Therefore, habitat management can be combined into land use types of local, regional, nationwide, and worldwide economic aspects to reduce the dependency of high input based on existing agriculture.","PeriodicalId":186401,"journal":{"name":"Asian Journal of Crop, Soil Science and Plant Nutrition","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128982287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}