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Impact of humic acid on various properties of soil and crop productivity- A review
No full textTo raise the amount and quality of agricultural produce, numerous studies have been conducted in recent years. The development of agriculture is not just influenced by mechanization and new hybrid seeds; soil quality also plays a significant role. Lack of organic matter in soil frequently renders it unsuitable for plant growth. To address this problem and increase agricultural yields, humic compounds have started to be applied to soil in many parts of the world. Humic acid (HA) can now be applied to crops or soil using a variety of methods, including soil application, foliar application, seed treatment, root dipping, and drip irrigation, as HA is available in various forms viz., granule, powder, flakes, liquid and also in conjunction with inorganic fertilizers. However, soil application is the most effective in numerous studies. Numerous experiments on crops were carried out to determine the ideal dosage of humic acid, and it was found that character, yield, and soil characteristics all had a favourable impact on crop production. This review clarifies the significance of humic acid for various crops and the health of the soil, as well as how it increases agricultural output
Developed the fungicide schedule for the management of early blight in potato in Rajasthan
Get PDFField experiments were conducted at Agricultural Research Station, Kota to develop a fungicide spray schedule for the management of early blight (Alternaria alternata), the most significant foliar disease of potato during the year 2018-19 and 2019-20. The protective and curative activity of fungicides were assessed in field studies. All spray schedules inhibited disease progress and enhanced total tuber yields compared with unsprayed plots. Most minor disease severity (11.40%) with the highest disease control (74.32%) was recorded in the treatment (T3), where the first spray of mancozeb 75WP (0.25%) was followed by a second spray of difenoconazole 25% EC (0.05%) and a third spray of mancozeb 75WP (0.25%) at 10 days interval was applied. The second-best treatment was T2, where the first spray of mancozeb 75WP (0.25%) was followed by a second spray of hexaconazole 5EC (0.05%) and a third spray of mancozeb 75WP (0.25%) at 10 days interval (17.10% & 61.48) was applied. The higher tuber yield was achieved in the treatment T3 with the highest benefit-cost ratio (2.18). Thus, a spray schedule consisting of preventive and curative fungicides may be recommended to effectively manage early blight and higher tuber yield in south eastern Rajasthan
Ecological impact of alien plant invasion in national parks of an Indo-Burma biodiversity hotspot in India
Get PDFThe present study aims to evaluate the ecological impact of invasion in two protected areas and provides the first authentic inventory of alien plants with their invasion status. Random sampling technique was followed along with nested quadrats to investigate the phytosociological status of invasion by the alien plants. The ecological studies revealed the occurrence of 207 alien plant species 193 genera under 59 families. The family Asteraceae exhibited the highest species diversity with 38 plant species followed by families like Fabaceae (20 species), Euphorbiaceae (8 species), Convolvulaceae (8 species) and Amaranthaceae (7 species). Most of the alien plants (31%) belonged to American origin followed by 9.18 % from Mexican, 9.17 % from African and 5.31% from European origin. Out of the total species recorded, it was observed that 60.38% herbs, 12.56% trees and 11.11% were shrubs. Phytosociological investigation showed that the lowest reading of Shannon diversity index (H’=1.897) was found in the herb layer of disturbed habitats in the middle altitude of Murlen national park in comparison to the disturbed habitats in the middle altitude of Phawngpui national park (H’=2.198). Ageratina adenophora, Mikania micrantha, Ageratina riparia and Chromolaena odorata were observed as the most noxious invasive alien plants. This database may be utilized to prepare the area\u27s conservation or forest management plans
Identification of spoilage yeasts in cashew apple (Annacardium occidentale L.) using MALDI-TOF MS
Get PDFCashew (Annacardium occidentale L.) is a hardy and golden crop of arid regions, and the pseudo fruit, cashew apple is a vital source of sugars and vitamins that is discarded as a waste during cashew nut processing. Cashew apples start fermenting soon after the harvest, and due to the presence of a wide spectrum of polyphenols and tannins, the change of colour of cashew apples leads to an unappealing marketability and storage stability. The present study is aimed to rapid identification of different spoilage yeasts and to identify them using MALDI-TOF Mass Spectroscopy. Spoilage yeasts like Candida krusei, C. tropicalis, Pichia norvegensis, Brettannomyces bruxellensis were the spoilage yeasts found to have high confidence score values of 2.00 - 3.00 with high consistency
