Mayuri Baruah - Academia.edu (original) (raw)

Papers by Mayuri Baruah

Indian journal of entomology, 2010

Journal of Entomology and Zoology Studies

The field experiment was conducted in the rice field of Regional Agricultural Research Station, A... more The field experiment was conducted in the rice field of Regional Agricultural Research Station, Assam Agricultural University, Titabar, Assam in randomized block design sowing the seeds in three dates at an interval of twenty days between each sowing, viz., early (15 th May), normal (5 th June) and late (25 th June) separately. Early sown was the least damaged crop (9.6% dead heart (DH) and 10.3% white ear head (WEH) as compared to normal (15.5 % DH and 16.7% WEH) and late (24.6% DH and 25.3% WEH) with a yield of 5.3t/ha in early, 4.5 t/ha in normal and 2.4t/ha in late sown crops. Spider population was significantly higher in early than that of normal and late planting, whereas the population of coccinellid beetles and the egg parasitoid, Trichogramma japonicum were non-significantly higher in early than that of normal sown crop, but the population of these natural enemies were significantly lower in late sown rice. The stem borer infestation was significantly higher in late sown crop with increased maximum temperature, morning humidity having a significant positive effect in all the dates of planting. There were a non-significant positive effect on population with minimum temperature (r = 0.34 for DH and r = 0.22 for WEH) and average rainfall (r = 0.20 for DH and r = 0.07 for WEH) at early sown. Maximum temperature and morning relative humidity had a significant positive effect on borer infestation as dead heart and white ear head in connection with a significant positive effect of spider population in three dates of planting. The variation in the planting times work as a means of cultural control by creating asynchrony between crop and insect pests' phenology along with crop-weather-pest interaction help in developing forewarning system to warn the farmers in advance to avoid manageable yield loss by stem borer incidences.

International Journal of Environment and Climate Change

Zinc is considered as an important micronutrient for maize which is a promising emerging cash cro... more Zinc is considered as an important micronutrient for maize which is a promising emerging cash crop for the state of Assam, India. A field experiment was conducted at the experimental farm of Krishi Vigyan Kendra, Jorhat, Assam Agricultural University during 2018-19 and 2019-20 to study the dynamics of zinc fractions in soil in a maize-maize cropping sequence as affected by zinc fertilization. The experiment was laid down in a randomized block design (RBD) with twelve treatments combinations of basal and foliar application of zinc through zinc sulphate and zinc oxide nanoparticles (ZnO NPs). The results revealed that zinc fertilization significantlyinfluenced the studied zinc fractions in soil during both the years under investigation. The distribution of different zinc fractions in soils at harvest was found in the following order: water soluble plus exchangeable-Zn < complexed-Zn < crystalline sesquioxide bound-Zn < amorphous sesquioxide bound-Zn < residual-Zn. Among th...

The relative abundance of major insect pests and natural enemies were studied at three different ... more The relative abundance of major insect pests and natural enemies were studied at three different growth stages in seven high yielding varieties, Ranjit, Ranjit Sub-1, Bahadur, Bahadur Sub-1, Gitesh, Swarna Sub-1 and Shraboni in kharif and rabi season at Titabar, Assam during 2020–2022. White stem borer (47.49%) was the most predominantly abundant species followed by yellow stem borer (41.97%) among seven major insect pest species e.g., leaf folder, gall midge, caseworm, whorl maggot and gundhi bug in kharif season. But, yellow stem borer (48.69%) was abundantly observed followed by white stem borer (40.63%) among all major insect pests during rabi season. Both the species of stem borer gradually increased and reached peak due to availability of enough food at reproductive stage and decreased in the ripening stage in both the season comparatively higher in rabi season Leaf folder was the most abundant leaf feeder and its population abundance was higher in Shraboni (9.89%) followed by...

Journal of Applied Zoological Researches, 2008

Indian Journal of Entomology, 2010

The traditional practices, commonly known as indigenous technical knowledge (ITK) were ecological... more The traditional practices, commonly known as indigenous technical knowledge (ITK) were ecological friendly, cost effective and were mostly suited for the particular situation. Painting of citrus trunk with lime against citrus trunk borer, pouring fresh milk on the crown of coconut against rhinocerous beetle, application of salt or salt solution against crown rot of coconut, smoking in the evening under mango trees against different pests, placing banana in the potato field against red ant, sparying of fish wash on vegetable crop against aphids were some of most commonly practices used by the farmers of different villages of Lakhimpur, Assam.

An investigation was carried out to study genetic variation and diversity pattern in a set of 80 ... more An investigation was carried out to study genetic variation and diversity pattern in a set of 80 rice genotypes of Assam grown under aerobic environment. Amongst the 11 traits under study, highest genotypic coefficient of variation was exhibited by grain yield, followed by 100 grain weight and grain L:B ratio. Heritability in broad sense was highest for grain L:B ratio followed by grain width and grain length. More than 90% heritability in broad sense was, however, observed for all other traits except effective tillers per plant panicle length and grain yield. Genetic advance as per cent of mean was observed highest for grain yield followed by 100 grain weight and grain L:B ratio. It was, thus predicted that selection for these traits would be most effective for further genetic improvement.. At the intermediate linkage distance, we obtained twelve diverse clusters out of the 80 entries following Euclidean cluster analysis. The cluster II was the largest consisting of 61 genotypes fo...

ROLE OF WOMEN IN NATION DEVELOPMENT

International Journal of Current Microbiology and Applied Sciences, 2021

The rice caseworm, Nymphula depunctalis (Guenee) (pyralidae: Lepidoptera) is a serious pest of ri... more The rice caseworm, Nymphula depunctalis (Guenee) (pyralidae: Lepidoptera) is a serious pest of rice in Assam particularly in Sali season (monsoon crop:transplanted lowland rainfed rice and deep-water rice). N. depunctalis is widely distributed in rice growing counties of Asia, Australia, America and Africa (Dale, 1994).The pest occurs in the fields with prolonged standing water in the vegetative stage of the rice plant (Pathak and Khan, 1994). Larvae of N. depunctalis are semi-aquatic in nature which requires standing water. Due to continuous rainfall and water stagnation in thefield of winter rice, infestation of N. depunctalis increased in a high rate during vegetative stage of the crop. In heavily infested area, entire crop may have to be resown or replanted (Srivastava, International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 10 Number 02 (2021) Journal homepage: http://www.ijcmas.com

Books by Mayuri Baruah

Bhumi Publishing, 2022

The need for agriculture to generate more food has increased due to the exponential growth of the... more The need for agriculture to generate more food has increased due to the exponential growth of the world's population. In the past 12 years, the world's population has increased by one billion, surpassing 6 billion in 2000, and is expected to reach 9 billion by 2050 (Brown, 2004). The technologies used to change agriculture since the 1960s may be boosting production to fulfil the world's food need, but they may also be endangering agricultural ecosystems. For instance, herbicides and insecticides based on chemicals initially assisted farmers to lower their losses due to hazardous insects and illness. However, when pests became more resilient and the chemicals left hazardous residues in our water, land, and food, they started to fail. (Nierenberg and Halweil, 2005). Additionally, soil managers over-relied on chemical fertilizers to replace or supplement soil nutrients, which decreased the quality of the soil and water (Stamatiadis et al., 1999). A vital human activity, agriculture is both inextricably linked to nature and a threat to it. Approaches to sustainable agriculture Use of organic matter The main source of nitrogen and other nutrients is organic matter. It improves the soil's ability to absorb shocks, aids in preserving a stable soil texture and erosion resistance, and upholds a thriving colony of soil microbes (Cho et al., 1986). While maintaining a high soil organic matter content is always preferred and proper management of the soil organic matter is essential in attaining profitable, sustainable, and environmentally friendly agriculture, organic matter should not be viewed as a panacea in modern agriculture (Hoeft and Nafziger, 1988; Darst and Murphy, 1989). The soil where the crop is cut should receive crop remains, potentially after composting. The level of soil organic matter will rise while nutrients losses are reduced by choosing the right crops and cropping techniques. Reduced tillage Conservation tillage is a type of low-input agriculture since it causes the least amount of soil disturbance and less energy and labour. While no-tillage keeps organic materials undisturbed and stratified in the topsoil, tilling the soil quickly absorbs organic elements into the soil matrix. Different factors will have an impact on the soil's characteristics and soil microorganisms, including runoff water, drying and wetting, freezing and thawing (Stinner and House, 1989). Use of livestock wastes It is desirable to utilize animal waste from livestock farming. Efficient waste management will reduce pollution while also giving of crops a useful supply of low-cost organic fertilizer. Protection of non-cultivated land Rural areas are seeing an increase in the amount of marginal land left uncultivated. If these uncultivated areas are not adequately covered with vegetation, they are quite vulnerable to erosion. In these places, appropriate controls for soil erosion should be created and implemented. Bhumi Publishing, India 4 Crop rotation One of the most effective methods of sustainable agriculture is crop rotation. It goal is to prevent the negative effects associated with repeatedly growing the same crops in the same soil. Since many pests like certain crops, it aids in the fight against pest issues. The population of the pests can grow significantly if there is a consistent supply of food. Permaculture A food production system using permaculture reduces resources waste and smart farming. Techniques used in permaculture design include growing grains without tillage, spiralling plants and herbs, sheet mulching, and using each plant for a variety of tasks. It focus on using perennial plants including fruit trees, nut trees, and bushes in a system that is supposed to replicate how plants in a natural ecosystem would behave. Cover crops Many farmers decide to always plant crops in a field and never leave it bare, this decision may have unforeseen repercussions. The farmer can accomplish his objectives of minimizing soil erosion, limiting the growth of weeds, and improving soil quality by planting cover crops like clover or oats and ultimately enhancing the quality of the soil. Soil enrichment The foundation of agricultural ecosystems is the soil. Both yields and the strength of a crop can be improved by having healthy soil. There are numerous techniques to preserve and improve soil quality. Examples include using composted plant waster or animal manure, as well as leaving crop leftovers in the field after a harvest. Natural pest predators It's crucial to consider the farm as an ecosystem rather than a factory if you want to keep pests under control. For instance, many birds and other animal are in fact pests that affect agriculture. Managing your farm to support populations of these pest predators is a smart strategy that is also successful. Bio intensive Integrated Pest Management IPM, or integrated pest management, is a strategy that mostly uses biological methods. Crop rotation is emphasized in IPM as a key component of pest management. Chemical remedies will only be required as last option. IPM instead. Using sterile males and biological pest control agents like ladybugs would be the proper responses. Instead, using sterile males and biological pest control agents like ladybugs would be the proper responses. Polyculture farming This method is comparable to crop rotation, which seeks to imitate natural principles for the highest yields. In one location, several crop species are grown. These species frequently work well together, producing a wider range of goods on a single plot and making the best use of the