1.1 Sharma et al. (2012). The main objective of the study work done on Yagya was to study the effect of Agnihotra ash on agriculture so that a practical approach could be developed to increase crop yield. A comparative study was conducted using Agnihotra ash and control ash and the yellow soil was amended with ash for the work. As a result of the study, yellow soil with Agnihotra ash gave the best result while yellow soil alone gave the worst result. Agnihotra ash increases yield and growth rate by 20% compared to control ash and by about 40% compared to soil alone.
1.2 Limaye, (2019). The aim of this study was to assess the effect of Agnihotra on the production of brassinosteroids in plants. Agnihotra or Havan is used in various parts of the world in agriculture to increase production on a large scale as well as to make plants disease free. Agnihotra is performed at sunrise and sunset which activates the plant hormone i.e. brassinolide which is essential for the growth and development of plants. The study results showed that plants exposed to volatiles released during Agnihotra probably trigger the activation of precursors of phytosteroids or brassinosteroids, which are essential for plant growth and development.
1.3 Kadam et. al., (2020). The objective of the study was to find the effects of Agnihotra in the management of fungal pathogen Alternaria solani of potato and tomato crop and bacterial pathogen Xanthomonas campestris of tomato. For this study, Homa treatment was used to manage the fungal pathogen in tomato and potato crop and bacterial pathogen in tomato crop under controlled polyhouse conditions. It was observed that homa therapy effectively reduced the incidence of early blight disease of potato and tomato and bacterial blight disease of tomato in polyhouse and it also reduced the environmental pathogenic microflora by around 70 per cent. It is clear from this study that Havan Kriya can be used as an alternative solution to chemical pesticides in protected farming and in integrated pest management.
1.4 Berde et. al., (2015). The objective of the study was to find the effects of Agnihotra ash for enhancing soil fertility. For this study, four farm soil samples and one soil sample from newly purchased land were selected. Ash supplemented soil was analysed after incubation of one week. The microbial count of soil before and after ash addition was enumerated. A marked difference in the count was observed. Addition of ash results in increase in the overall bacterial flora, including the effective bacteria i.e nitrogen fixers and phosphate solubilizers while reduction in the fungal flora was seen. Thus, the present study showed encouraging results regarding the effectiveness of Agnihotra ash for enhancing soil fertility.
1.5 Abhang et al., (2015) A experiment was conducted to evaluate the effects of Agnihotra smoke on microbial load, ambient air and Sulfur oxide (SOx) and Nitrogen oxides (NOx) levels in plant growth. In these Experiments it is also to investigate the effects of Agnihotra ash on seed germination, plant growth, plant genotoxicity and water purification. The study result showed that microbial load and SOx level was reduced but a slight increase in NOx level in the surrounding air. Plant growth with Agnihotra smoke treatment and the number of seeds germinated when treated with Agnihotra ash was higher than in plants not treated with Agnihotra ash and Agnihotra smoke. As per the results, it was observed that when raw water is treated with Agnihotra ash, there is a significant reduction in the organic oxygen demand and microbial load along with the solid content and hardness in the water. This shows that the waste water becomes potable and can be reused on farms. From this result it can be seen that if Agnihotra is performed and its ash is used in agriculture, it can reduce pollution and increase the growth of crops.
1.6 Devi, at al., (2004). The objective of the study was to find the effects of Agnihotra on the germination of rice seeds. For this study, rice seeds were germinated in four rooms in petri dishes in four different conditions for a period of 15 days. Three sets of data were collected for three seasons, autumn, winter and summer for a period of 15 days each and the length of the root and shoot, fresh weight and dry weight were measured and the analysed data showed that the Agnihotra sacrifice with mantra was overwhelmingly more effective in the germination process than the other three cases. Thus, the present study showed encouraging results regarding the effectiveness of Agnihotra on the germination of rice seeds.
1.7 Kumar et al., (2018). The aim of the study was to explore the effects of Homa organic farming in reducing pest and disease infestations in lady’s finger and improving its quality and yield. Five organic fertilizers were evaluated under soil, foliar and soil + foliar application and the collected data of the experiment was statistically analyzed. The results showed that maximum increase in dry matter production was achieved after Agnihotra Home ash with soil and foliar application. There was a significant reduction in the incidence of diseases and pests and also an increase in ascorbic acid and phenol content in the early growth phase of the crop growth cycle. Thus, the present study showed encouraging results regarding the effectiveness of Homa organic farming in reducing pest and disease infestation in lady’s finger and improving its quality and yield.
1.8 Chandel, (2019). The objective of the study was to explore the effects of traditional Vedic Yagya in higher seed germination and seedling growth of Tritieum aestivm (wheat). Simultaneously, two sets of seed investigations were carried out. One set of wheat seeds was subjected to the Yagya technique in one research. In an adjacent room, the other batch of wheat seeds were subjected to normal growing circumstances as well as smoke from standard mango (Mangifera indica) wood smoke. The seeds were treated for four days, and seed germination was measured on the sixth day. The germination rate index, coefficient of velocity of germination and mean germination time was 85.08%, 77.021% and 1.29 days in seeds that were exposed to Yagya fumes as compared to 48.15%, 36.076% and 2.77 days in seeds that were not respectively. Thus, the present study shows encouraging results regarding the effectiveness of yagya therapy in the higher seed germination and seedling growth of Tritieum aestivm (wheat).