scholarly journals Study of cotton seed term sowing territories in areas susceptible to wind erosion in Uzbekistan

2021 ◽  
Vol 258 ◽  
pp. 03016
Author(s):  
Zokirjon Ismatullaev ◽  
Allamurat Khojasov ◽  
Gulnora Akhmedjanova ◽  
Munisa Pulatova ◽  
Gafurjan Isaev

The cotton seeds of Namangan-77, Sultan, S-8290, and S-8286 varieties were sown on May 5 with N-200, P-150, K-100 mineral fertilizers and irrigated at 70-80-70% of LFMC. When the seeds were sown on May 15, 58.4% of cotton was yielded in the first harvest from S-8286 compared to the above varieties. Compared to other varieties, an increase in yield in the first harvest was found to be 1.3-13.5%. Namangan-77, Sultan, S-8290 and S-8286 varieties were sown on May 15 due to wind erosion and other natural disasters. Data on cotton yield of 28.0 q/ha are given.

Author(s):  
D. N. Radnaev ◽  
S. V. Petunov ◽  
D-Ts. B. Badmatsyrenov

The paper presents the results of studies of grain crops row sowing method agrotechnical indicators after the modernization of the working bodies of the SZS-2.1 seeder-cultivator. The SZS-2,1 stubble cultivator seeder has found wide application in the arid regions of the Republic of Buryatia, whose soils are prone to wind erosion. This seeder provides a combination of pre-sowing cultivation, sowing grain crops, applying mineral fertilizers to the sown rows and rolling them on stubble backgrounds, that is, in fields that have been processed since autumn with flat-cutting tools or have not been cultivated at all. Sowing with these seeders with 23 cm row spacing in a row method is the main method of sowing spring wheat in the soil conservation agriculture system. Routine sowing on soils of light texture, subject to wind erosion, causes thickening of plants in a row, which leads to irrational use of the feeding area by plants, increased weediness of crops between rows and, ultimately, to a decrease in yield. A distributor for the coulter has been developed, where the seeds are fed to the distributor. Then, reflecting from the distributor, the seeds are evenly dispersed in the opener under the plow space. Also, instead of serial wedge-shaped packer rollers, ring-spur rollers of the 3KSH-6 type are installed on the seeder. In addition, continuous rolling provides the necessary contact of seeds with the soil, preserves soil moisture and helps to attract it from the lower layers. Thus, the modernization of the SZS-2.1 seeder made it possible to substantiate subsurface-spread strip sowing with continuous rolling, which ultimately led to an increase in grain yield by 10-15%.


2020 ◽  
Vol 150 ◽  
pp. 15477-15487
Author(s):  
Siofougowary Mariam SORO ◽  
N’guettia René YAO

Objectif : Pour tenter de réduire les effets de ces changements climatiques sur les productions, un apport au sol avant les mises en place des cultures de 12 t/ha de déchets de coton graine ou de compost associé à la moitié de la dose d’engrais minéral recommandée (200 kg/ha de NPK + 50 kg/ha d’urée) a permis d’améliorer l’humidité du sol sans aucun effet sur l’eau utile du sol. L’apport de déchets de coton graine ou de compost a permis aussi d’améliorer le nombre de capsules par plante, le nombre de capsules mûres récoltées, la qualité sanitaire des capsules mûres et surtout le rendement en coton graine. Conclusion : L’apport de 12 tonnes/ha de déchets de coton graine associés à de l’engrais chimique à la dose de 100 kg/ha de NPK et 25 kg/ha d’urée constituent un niveau optimum d’utilisation des déchets de coton graine en coton culture. Mots clés : Déchets de Coton graine, Humidité du sol, Rendement du cotonnier, Côte d’Ivoire. Effect of ginned cotton-seed waste application to the ground on soil moisture and cotton yield in northern Côte d'Ivoire ABSTRACT Objective: In an attempt to reduce the effects of climate change on production, an application to the ground prior to the establishment of 12 t/ha of ginned seed cotton waste associated with half of the recommended mineral fertilizer dose (200 kg/ha of NPK + 50 kg/ha of urea) improved soil moisture without any effect on the soil available water capacity. The supply of seed cotton waste or compost has also improved the number of capsules/plant, the number of mature capsules harvested, the sanitary quality of mature capsules and, above all, the yield in seed cotton. Conclusion: The supply of 12 tons/ha of seed cotton waste associated with chemical fertilizer at the dose of 100 kg/ha of NPK and 25 kg/ha of urea constitutes an optimum level of use of cotton seed waste in cotton farming. Keywords: Seed Cotton Waste, Soil Moisture, Cotton Yield, Ivory Coast.


2020 ◽  
Vol 42 ◽  
Author(s):  
Mirella Figueiró de Almeida ◽  
Sarah da Silva Costa ◽  
Iara Eleutéria Dias ◽  
Carolina da Silva Siqueira ◽  
José da Cruz Machado

Abstract: Cotton Ramulosis (Gossypium hirsutum) is an important disease affecting cotton plantations in Brazil, and its causal agent, Colletotrichum gossypiivar.cephalosporioides(Cgc), according to the Brazilian phytosanitary authority, was considered a regulated non quarantine pest. It makes this microorganism subject to standardization in seed certification programs. The current seed health testing for detecting that pathogen in seed samples does not provide reliable results for routine analysis. On this paper, attempts were made to design specific primers for detection of Cgc associated with cotton seed. Two primer sets were selected based on the analysis of a multiple alignment of gene’s sequence encoding the glyceraldehyde 3-phosphate dehydrogenase from Cgc, C. gossypii and reference strains of the C. gloeosporioides species complex. The conserved sites unique to Cgc strains were used to design specific fragment of 140 bp. The primer specificity was confirmed by using other fungi. The primers produced a detectable band of target DNA of Cgc in all inoculum potentials of the pathogen artificially inoculated by the water restriction technique. The developed primer pair represents, therefore, a reliable and rapid mean to diagnose the Ramulosis agent in cotton seed.


2021 ◽  
Vol 244 ◽  
pp. 02012
Author(s):  
Sabirjan Isaev ◽  
Sayidjakhon Khasanov ◽  
Yusufboy Ashirov ◽  
Tokhtakhon Karabaeva ◽  
Azim Gofirov

In this article, in the conditions of light gray soils of Andijan-37 and Sultan varieties of cotton, before additional application of mineral fertilizers (every 3 years) 6,000 kg of bentonite per hectare is cultivated with Andijan-37 variety of 1,000 seeds weighing 2-3 g/ha, fiber yield 0,7%, increase in cotton yield by 3.0-3.5 q/ha, in the Sultan variety of cotton the weight of 1000 seeds by 5 g, fiber yield by 1.4%, cotton yield by 4.1-4.5 q/ha observed an increase in Due to the early ripening of the cotton crop 7-10 days and its 90-100% compliance with the requirements of the first industrial variety, saving 20-25% of available resources, the net profit per hectare is 150-105-75 kg/ha of mineral fertilizers used in the Sultan variety of cotton. There is information that in comparison with the usual technology fed on norms increased by 192,197 and 553,113 UZS, cotton of Andijan-37 variety increased by 468,048 and 553,148 UZS.


2021 ◽  
Author(s):  
Kulandaivelu Velmourougane ◽  
Angamuthu Manikandan ◽  
D. Blaise ◽  
Mageshwaran Vellaichamy

Abstract Cotton stalks, remaining after the cotton is harvested, are considered waste material and disposed of by burning. Presently, the supply of good quality manure, such as farmyard manure (FYM) is low. Thus, recycling of cotton stalks as compost can reduce the dependency on FYM apart from reducing inorganic fertilizer use and soil health enhancement. Some studies have reported on the conversion of cotton ginnery wastes into organic manure. However, no studies have reported about the composting of cotton stalks. We conducted field studies over three years on Vertisols to evaluate the impact of integrated use of microbially enriched cotton stalk compost (ECC) as an alternative to FYM along with mineral fertilizers in cotton production. Additionally, we evaluated an option of using native microbial consortia as seed treatment and their synergistic effect along with ECC application on cotton yield, fibre quality, and soil properties. Results indicated that the substitution of FYM with ECC in integrated nutrient management (INM) produced effects similar to that of FYM use in enhancing cotton yield and soil properties. Application of ECC + inorganic fertilizers (modified nutrient management practice) in soil increased boll numbers (8.4%), boll weight (9.9%), seed cotton yield (13%), fibre properties, soil nutrient, and biological activities, which were on par with FYM + inorganic fertilizer application. The use of ECC is estimated to reduce 50% costs on nitrogenous, phosphatic, and potassic fertilizers, and can save approximately US$ 34 ha− 1 on inorganic and manures in the recommended dose of fertilizers (RDF) and INM practice.


2019 ◽  
Vol 5 (2) ◽  
pp. 151
Author(s):  
Khairanita K, Pipin Suciati, Kurnia Ayu , Abdul Manan, Moch. Amin Alamsjah

Abstract Preservation is a human effort to enhance durability and shelf life of the fish that the quality of fish remains in good condition. Irregularities in the use of formalin preservation would endanger the health of consumers. Cottonseed is containing compounds of Raffinose, proteins, fats that are cryoprotectants to cells and antimicrobe, that use of cottonseed to suppress use of formalin as a preservative of fish in the community. The method used by dissolving cottonseeds in organic solvents, where in the organic solvent effective to extract the active ingredients in cottonseed. The results showed use of cotton seed extract is 100% equal to 100% use of formalin in maintaining the quality of the fish. This is evidenced by organoleptic tests, pH and bacterial tests. Expected with these results, cottonseed can be a substitute for use of formalin.


2016 ◽  
Vol 13 (10) ◽  
pp. 7266-7270
Author(s):  
Li-Xin Zhang ◽  
Chao-Yang Sun ◽  
Qing-Lin Huang ◽  
Yong-Bing Li

Due to the universal problems of the cotton seed quality, the traceability management system for the cotton seed quality and safety based on RFID is described in this article, which uses RFID technology as the basic technical means. Each RFID tag is affixed to the package of cotton seeds. The information of cotton seed is written into the RFID tag. The RFID tags are used to trace the entire of the cotton seed, which guarantees the authenticity and reliability of the cotton seed information and ensures the quality and safety of cotton products. The system is developed through the Visual Studio 2010 as the development environment, and SQL Server 2008 is employed to develop the database.


Success in cultivating cotton largely depends on the timing and quality of soil preparation for sowing and sowing, and the latter, in turn, depends on how it is carried out and on the perfect design of the machines. The aim of the study is to justify the shape of the ridges and the parameters of the moulder to the cotton seeder. The authors proposed a new technology for sowing with the simultaneous formation of ridges. The shape and parameters of the ridge are theoretically substantiated. When performing the shape of the ridge in the form of an isosceles trapezoid and, accordingly, with a height and width of the ridge surface of at least 100 mm and 160 mm, the seed bed is protected from flooding by rain streams. The design of the developed comb moulder to a cotton seeder for the implementation of the proposed technology is given. Theoretically substantiated the main parameters of the crest moulder. It was found that when the input edge of the moulder is 290-320 mm wide, the output edge is 160 mm, the angle of inclination of the side blade to the direction of movement is 20°, the length of the runner of the moulder is 203-215 mm, the height of the side blade is 100 mm and the angle of installation of the side blade to horizon 42-45° ensures highquality implementation of the technological process of formation of ridges. When sowing cotton seeds on the ridges with the simultaneous formation of the ridge, the seedlings of the plants increase, and the cotton yield increases compared to the smooth sowing method of 9.9%.


Author(s):  
D. K. Rashidova ◽  
М. M. Yakubov ◽  
Sh. T. Sharipov ◽  
N. M. Mamedov

Laboratory and field experiments were carried out at the experimental site of the Research Institute of Breeding, Seed Production and Agricultural Technology of Cotton Growing, located in the Kibray District of the Tashkent Region at 42 degrees north latitude, at an altitude of 481 m above sea level. The soil is a typical, cultivated gray soil of old irrigation from the Boz-Su main channel. Agrotechnical measures were carried out in accordance with the recommendations of the Uzbek Cotton Research Institute for the conditions of typical gray soils with deep groundwater. For each fruit branch the weight of one capsule, the number and weight of 1000 seed pieces were determined under laboratory conditions, their germination. It is shown that the high quality of cotton seeds guarantees control over their varietal and sowing characteristics. The yield, and therefore the number and size of the bolls are influenced by many factors – climate, soil, growing zones, annual rates of NPK mineral fertilizers, irrigation regime, agrotechnical methods, and others. Most of all yield volume depends on the rate of application of mineral fertilizers. On sown areas the field germination of cotton seeds, as a rule, is no more than 75-80%. Bringing it to 90% and above will provide the most complete plant stand density, while the seeding rate will decrease and the weight of 1000 seed pieces will increase. It was revealed that this indicator in comparison with the number of seeds in one seed capsule by the tightness of the connection, is characterized by a curvilinear dependence with a correlation ratio η = 0.885. The closeness of the connection between the field seeds germination and the opening of the capsules was established: with it’s increasing the percentage of opening decreases.


2019 ◽  
Vol 1 (2) ◽  
pp. 35-44
Author(s):  
Waqas Ahmad ◽  
Nazim Hussain

The field experiment was performed at Adaptive Research Farm Karor, Layyah by sowing cotton variety (MNH-886) @ 25 kg ha-1. The experiment was conducted by Randomized Complete Block Design (RCBD) with a factorial arrangement and 3 replications. The fertilizer NPK was applied as per recommendation and standard agronomic practices were given at a proper time. The maximum cotton seed germination (m-2) was 37.00 with soaking the seed in potassium chloride solution. A maximum number of plants m-2 was (32.667) in treatment soaking seed in potassium chloride solution. Whereas a minimum number of plants m-2 were (20.66) in the control treatment. Maximum plant height (cm)was observed in treatment soaking the seed in potassium chloride solution. Whereas minimum plant height was recorded in the control treatment. Maximum monopodial branches were observed in treatment soaking the seed in potassium chloride solution, followed by soaking the seed in water for 12 hours (hydro-priming) which is statically at par with soaking the seed in calcium chloride solution. Whereas a maximum number of sympodial branches were recorded at soaking the seed in potassium chloride solution (23.33). Seed priming of cotton seed with water and salts have no effect on the number of squares, flowers, open bolls plant-1 and boll weight (g). Maximum average yield was (2700.00 kg ha-1) in treatment soaking seed in potassium chloride solution. Whereas minimum seed cotton yield was (2338 kg ha-1) in the control treatment. Maximum seed cotton yield was (901.07kg ha-1) in treatment soaking seed in potassium chloride solution. Whereas minimum seed cotton yield was (773.70kg ha-1) in the control treatment. Maximum seed lint yield was (1797.7 kg ha-1) in treatment soaking the seed in potassium chloride (KCl) solution. Whereas minimum seed cotton yield was (1545.6 kg ha-1) in the control treatment. Maximum seed index was (9.0167gm) in treatment soaking the seed in potassium chloride solution (KCl). Whereas the minimum seed index was (7.6133gm) in the control treatment. Seed priming of cotton seed with water and salts have no effect on the uniformity index (%), UHML fiber length, and micro narie value. Maximum GOT (%) was (46.033%) in soaking seed in potassium chloride solution (KCl). Whereas minimum GOT was (42.863%) in the control treatment.


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