Effects Of Sideration On The Number Of Weeds Used At Different Times

Аннотация

In keeping up and expanding soil fertility by applying siderite (green manure), increasing the yield of cotton by planting and cultivating pisum, pea, rapeseed, and grain as siderite crops from selected plants; amid cultivation, 39-51 tons of green biomass per hectare was collected in summer and 17-22 tons in autumn, and their effect on weed numbers were determined. In this case, in the experimental field, more perennial weeds were found, such as salomalaykum (Cyperus rotundus L.), field bindweed (Convolvulus arvensis L.), ajrik (Cynodon dactylon (L.) Pers.), and annuals were found in semizoot (Portulaca oleracea L.), white sorghum (Chenopodium album L.), common rosemary (Amaranthus retleflexus L.), ituzum (Solanum nigrum) and others were observed. As a result, the number of yearly and perennial weeds beneath the influence of summer sideration diminished by 2.4-2.6 units compared to the control option before the 1st cultivation between cotton rows, and by 4.6-4.7 units before the final irrigation, or under the influence of autumn sideration. In accordance with the over, a decrease of 2.8-3.1 units was accomplished, and before the final irrigation - to 5.0 units. The most noteworthy reduction in weeds was observed in rapeseed and barley variants utilized as siderates in both experiments. KEYWORDS Pisum, peas, barley and rapeseed siderate crops, sideration, glucosinolates, soil, fertility, weed seeds, reproductive organs, top and bottom layers of soil drive, weeds, weed seeds, alleleopathy. The US A Journals Volume 03 Issue 04-2021 31 The American Journal of Agriculture and Boimedical Engineering IMPACT FACTOR (ISSN – 2689-1018) 2021: 5. 554 Published: April 30, 2021| Pages: 31-37 Doi: https://doi.org/10.37547/tajabe/Volume03Issue04-05 OCLC - 1121105746 INTRODUCTION rhizome. Planting intermediate crops of cabbage, especially oilseed radish, inhibits the The extension of the area beneath cereals and growth of weeds, so it can reduce the use of the specialization of ranches in grain crops will herbicides or lead to their complete non-use. lead to an increment in the share of cereals in K.Dovban [3. p. 404], on the other hand, crop turn, the improvement of particular cauliflowers (autumn and spring rapeseed, diseases, weeds, and bugs. The as it were way surepitsa, and oily radish close to them) don't to restrain such negative situations is to plant appear to coordinate allelopathic activity in intermediate crops. Extensive use of relation to the plant. The address arises when intermediate crops as green manure and rapeseed is used in biological control against animal feed ensures the ecological health of competitive weeds such as weeds?: this trim rotation, as well as a sterile method of condition is affected not by the direct effective cleaning of the field from weeds, allelopathic dynamic substance of rapeseed pests, and pathogens [Sh.Bakhromov, but by some other mechanism. Even in the D.Siddikov, 1. pp. 357-360; X.Botirov, absence of direct allelopathic dynamic X.Kiryigitov, 2. pp. 41-43; I.Kovalenko, substances against weeds in the plant, their A.Zaytsev. 4. pp. 56-61; R.Murodov, Sh.Rizaev, impact is by implication related to the 5. pp. 60-61]. allelopathic impact, among which THE MAIN FINDINGS AND RESULTS microorganisms are included. Accordingly, the creators emphasize that cauliflower crops are S.Savenkov, L.Dobromyslova [6. pp. 132-134] a great factor within the steady interaction used 25 t / ha of siderate, 60 t / ha of manure, 6 with microorganisms and play a vital part in t / ha of straw, and their blends. Studies have cleaning the soil from infections. The utilize of shown that the antiphytopathological cauliflower enhances the prophylactic sterile potential of barley in the accumulation phase is impact of the edit revolution. They can be used 10.3% in the control, 44.1 within the siderate; with complete certainty in the healing of micro- 50.6 in fertilizers; whereas straw was 35.9%, biocenosis in any soil condition. whereas siderate, manure, and straw were 60.9% when used together. In addition, E.Haramoto, E.R.Gallandt [13. op. 187-198] beneath the influence of sideration, the reduced the density of 16 species of weeds to harmful (toxic) occurrence in the soil driving 23–34% when applied to cabbage flower crops layer is sharply reduced. as a siderate, delaying the germination of weed seeds by 2 days compared to pure plowing. Scientists from the Bulgarian Institute of Tobacco and Tobacco Products have The agro phytocoenosis method of combating determined [K. Dovban, 3. p. 404] that root weed defilement is the use of artificially made extracts of rapeseed, esparto, alfalfa, and oats profoundly competitive cultivated plant affect the richness of sorghum seeds, and the species against the effects of weeds. effect of root extracts can be used in practice The importance of reducing the number of to combat parasites. weeds within the areas is gigantic in expanding L.Saad [15. pp. 6-8], an oily radish root s