PHYTOSANITARY EFFICIENCY PRESOWING SEEDS OF SPRING WHEAT

2016 ◽  
Vol 1 (4) ◽  
pp. 14-18
Author(s):  
Перцева ◽  
Elena Pertseva ◽  
Бурлака ◽  
Galina Burlaka

The purpose of the research is comparative evaluation of drugs for pre-treatment of seeds as regulators of phytosanitary state of agrocenosis of spring wheat yield on different zoned varieties. The damage agrocnosises spring wheat in both years of observation all studied phytophages was below the EPV. On average data best to reduce crop damage striped flea beetles appeared variant NV_101 seed treatment less effective – preparations succinic acid, Appin Extra and Zircon. Among the varieties studied agrocnosises longer damaged by striped flea grade Kinelsky Otrada, less susceptible due to pre-sowing seed treatments were Kinelsky Niva and Kinelsky Anniversary. Chinch actively feeding during the growing during the 2015 compared with 2014, but to reveal the regularities of pre-treatment of seeds of spring wheat on the central leaf desiccation failed when feeding chinch. Presowing treatment of seed of spring wheat had a positive impact on reducing the number of sprout damage on the fly all the studied drugs, indirect impact on the increased resistance to pests damage plants provided growth regulators. Chemical disinfectants – Maxim and Vitaros – consistently reduced the infestation of fungi colonies in two years of investigations. But it should be noted that the growth regulators Appin Extra and Immunotsitofit also significantly reduced the number of agents of root rot, especially on small infected grain. Chemical disinfectants steadily reduced the infestation of grain only at grade Kinelsky Anniversary, other varieties disinfectants showed better performance only on heavily infected grain. The use of growth regulators in the pre-processing of spring wheat variety Kinelsky Anniversary, affected, of course, is positive on the phytosanitary state of the spring wheat crop, that resulting in higher yields.

2019 ◽  
Vol 20 (5) ◽  
pp. 456-466
Author(s):  
V. I. Titova ◽  
L. D. Varlamova ◽  
R. N. Rybin ◽  
T. V. Andronova

The research has been carried out under production conditions on light gray forest soils with light particle-size composition at an area of 550 hectares where liquid pig manure (LPM) of a large pig breeding complex is annually used as an organic fertilizer at doses of 60 and 90 t/ha. The average characteristics of LPM are as follows: dry matter content is 9.5%, pH 7.7 units, nitrogen 0.22%, phosphorus 0.11%, and potassium 0.12%. The cultivated grain crops were presented by winter and spring wheat varieties, Moskovskaya 39 and Esther, respectively. It has been established that at the dose of 60 t/ha LPM for two years of research at an average a mean wheat yield was 3.0-3.75 t/ha, and at the dose of 90 t/ha - up to 4.75 t/ha. The return on investments for fertilizers in the “winter wheat → spring wheat” crop rotation link at the dose of 60 t/ha of LPM was 5.41 kg of grain per 1 kg of active substance of manure, at the dose of 90 t/ha - 4.57 kg / kg. A positive balance of nutritional elements developed on all fields, but it was better balanced when the dose of LPM was 60 t/ha and the yield was 3.0 t/ha of grain annually, or when the LPM dose was 90 t/ha and the yield of wheat was 4.75 t/ha. In this case, the estimated potassi-um supply of soil occurs at a lower rate than that of nitrogen and phosphorus. The application of 120 t of LPM during two years in total on loamy sand and of 180 t/ha on light loamy soil provided an increase in the content of mobile phosphorus compounds by 5-22 mg/kg, and potassium - by 11-30 mg/kg with a variation coefficient of 28-57% and 21-49%, respectively.


2021 ◽  
Vol 843 (1) ◽  
pp. 012038
Author(s):  
I I Seregina ◽  
I G Makarskaya ◽  
A S Tsygutkin ◽  
I V Kirichkova

Abstract To study the effect of sodium Selenite application different methods on the yield of spring wheat varieties, depending on the conditions of water supply, a series of vegetation experiments in accordance with the methodology were carried out. The object of the study is spring wheat of the Zlata variety (Triticum aestivum L.). It was found that the effect of selenium on the yield of wheat of the Zlata variety depended on the method of its application and the conditions of water supply. With optimal water supply, the positive effect of selenium on the yield of spring wheat plants was revealed with both methods of applying sodium selenite. It was found that in conditions of drought, the positive effect of selenium was obtained with both methods of using sodium selenite. The greatest efficiency of selenium is obtained in foliar processing of plants. The increase in grain weight in this variant was 1.4 times. The increase in the share of the agronomic significant part of the wheat crop yield to 36% is shown, which indicates the decrease in the negative effect of drought on the formation of spring wheat yield when using foliar processing of plants.


Author(s):  
V.M. Pakhomova ◽  
◽  
A.I. Daminova ◽  
A.Yu. Kozhevnikov ◽  
I.V. Galiyakhmetov ◽  
...  

The purpose of the article was to study the resistance of spring wheat under the influence of foliar treatment of plants with silicate bacteria according to lipid peroxidation (LP) and yield. The studies were conducted on spring wheat (variety ‘MiS’). The cultivation technology is typical wheat in this agroclimatic zone. The foliar treatment was carried out with a culture of bacteria Bacillus oligonitrophilus by spraying at the rate of 0.5 l/m2 of bacteria suspension containing 109 cells/ml (equally to 100% concentration). Field experiment design: option 1 – plants without treatment (control); option 2 – treatment with B. oligonitrophilus fertilizers at the stage of tillering; option 3 – treatment with B. oligonitrophilus fertilizers at the stage of tillering/stem elongation; option 4 – treatment with B. oligonitrophilus at the stage of tillering/stem elongation/heading. The activity of LP in wheat leaves was identified according to the content of malondialdehyde (MDA). The content of MDA was determined photometrically during interaction with thiobarbiturate. Wheat yield increase was observed in options 3 and 4 (by 11 and 15%, respectively). The content of MDA decreased in all phases of wheat vegetation in the same experimental options (by 14 and 21%, respectively), which indicated the antioxidant effect of the studied preparation. Thus, the bacterization of wheat with B. oligonitrophilus leads to the plant resistance increase. The protective effect is probably due to the action of a complex of their biologically active substances (metabolites) including the antioxidant mechanism of action.


10.12737/3823 ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. 117-121
Author(s):  
Шаронова ◽  
Natalya Sharonova ◽  
Яппаров ◽  
Akhtam Yapparov ◽  
Ильясов ◽  
...  

The article presents data of field research of fertilizers systems and tillage on heavy leached chernozem at planting winter wheat in the Republic of Tatarstan. The paper shows the positive effects of organomineral fertilizer system on crop growth and quality of winter wheat, compared with mineral fertilizer system. The improvement of water and soil nutrient status was revealed. The layered and chisel tillage systems were the most effective methods. The study showed, that the use of organomineral fertilizer system had a stronger positive impact on the yield and quality of winter wheat, compared with mineral fertilizer system. The most winter wheat yield was obtained by applying the organomineral fertilizer system at layered plowing - 4.49 tons per hectare (the increase relative to the control is 0.64 tons per hectare). The best indicators of water and food regime of leached chernozem also marked at using organomineral fertilizer system, especially in layered tillage .


2009 ◽  
Vol 8 ◽  
pp. 71-81
Author(s):  
Y.O. Vorobey ◽  
O.V. Nadkernichna ◽  
O.A. Shahovnina ◽  
M.A. Ushakova ◽  
O.Y. Leonov

The spring wheat variety Varyag whith high potential nitrogenase activity and the greater contents of chlorophyll in leaves and the active strain of the bacteria Azospirillum sp. 77, selected from the washed roots of the spring wheat variety Varyag, were used for creation of effective association “wheat – diasotrophs of genus Azospirillum”. Inoculation of wheat variety Varyag seeds with the bacterial suspension Azospirillum sp. 77 promoted the reliable increase of nitrogenase activity on roots of plants (by 46 %), content of chlorophyll in leaves (by 18 %) and structural parameters of wheat crop (weight of grain from 1 ear and weight of 1000 grains were increased as a result of inoculation by 16,5 and 16 % accordingly).


Author(s):  
I. Seregina ◽  
D.A. Chernyshev ◽  
V.I. Trukhachev ◽  
S.L. Belopukhov ◽  
I.I. Dmitrevskaya ◽  
...  

Background: Currently, technologies that provide the energy and nutritional value of agricultural crops under extreme growing condishions have the greatest advantage. Much research is devoted to the study of the effect of brassinosteroids and their analogs, as well as zircon, which have a multifunctional effect on the yield and the formation of elements of productivity of various agricultural plants. Also many studies have been carried out to study the effect of microelements on the formation of yield and adaptive ability of grain crops. However, some aspects of increasing the efficiency of growth regulation and microelements require further study. In this regard, studies were carried out to study the effect of the combined use of growth regulators and sodium selenite on the yield and the formation of productivity elements of spring wheat, depending on the conditions of water supply. The efficiency of the action of plants growth epin and zircon, introduced together with sodium selenit, on the yield and production process of spring wheat plants under conditions of optimal irrigation and short-term soil drought has been studies. Methods: The research was carried out in 2018-2019. In a vegetation experiment at the Russian State Agarian University-Moscow Agricultural Academy. The object of research was spring soft wheat of the Ivolga variety. The plants were grown in vessels with a capacity of 5 kg of soil. For the experiments, a soddy-podzolic medium loamy soil was used. The optimal conditions for water supply were created watering the vessels during the entire growing season. A short-trem drought was created by stopping irrigation duting the steming phase. The duration of the drought is 5-6 days. In experiments, growth regulations epin, zircon and sodium selenite were studied, which were used by treating seeds before sowing wich 0,01% solutions of preparations. In the studies, the yield of spring wheat ang the formation of productivity elements were determined. Result: Analysis of variance results for differences in the action of sodium selenite, zircon and epin, as well as their combination on various aspects of the production process of forming wheat yield. The stimulating effect of the combined use of sodium selenite and zircon on the reproductive organs of wheat was established, as a result of cariopses in an ear increased by 1.43 time. The activation of the attracting ability of the ear established when using the conscientious use of sodium selenite and epin. As a result, the wheat yield increased by 20% with optimal water supply and drought.


2001 ◽  
Vol 81 (1) ◽  
pp. 93-102 ◽  
Author(s):  
M J Garand ◽  
R R Simard ◽  
A F MacKenzie ◽  
C. Hamel

Although there is a potential to substantially reduce N fertiliser inputs by cropping spring cereals with an interseeded legume, the agronomic value and the nitrate catch-crop effect associated with this practice are not documented under the conditions of eastern Canada. This 3-yr study estimated N credits and non-N nutritional effects for interseeded clover (Trifolium pratense L. 'Arlington') in spring wheat production (Triticum aestivum L. 'Algot') and assessed fall and spring nitrate (NO3−) in soil. The soil is a St. Urbain clay (Orthic Gleysol) located in the St. Lawrence lowlands. Ammonium nitrate (NH4NO3) was applied at 0, 40, 80, 120 and 160 kg N ha-1 with or without red clover as a companion crop. Clover was incorporated as a green manure crop in mid-November. Clover significantly (P = 0.05) influenced wheat yield response to N fertilisation for 2 of the 3 yr. Clover did not reduce wheat grain yield through competition between the two plant species. Higher wheat yields with clover were attributed to N supplied by clover through mineralisation of residues incorporated in the soil the previous fall. Nitrogen fertiliser replacement value of clover was approximately 80 kg N ha-1 for 1994 and 1995. Clover occasionally increased NO3−-N measured in the soil profile in late fall and in spring. Interseeded red clover may provide most of the N needs of a companion spring wheat crop in fine-textured gleysolic soils, but is an inefficient N catch-crop. Key words: N credits, non-N nutritional effect, N catch-crop


2009 ◽  
Vol 57 (1) ◽  
pp. 26-39 ◽  
Author(s):  
Nadezhda Shumova

Crop Water Supply and its Relation to Yield of Spring Wheat in the South of Russian Plain The proposed method to estimate water supply of spring wheat crop is based on the ratio of the water amount extracted by plants under actual conditions of growth (transpiration) to cover needs for maximum (potential) yield (potential transpiration). Estimates of spatial, inter- and intra-annual water supply variability of the spring wheat crop in basic agricultural zones are given. Dependence of the spring wheat yield on water supply is presented.


2020 ◽  
Vol 224 ◽  
pp. 04040
Author(s):  
V Isaychev ◽  
N Andreev ◽  
V Kostin

The purpose of the study was to explore the effectiveness of various modifications of the preparation Megamix and complex macrofertilizers in cultivation of the spring wheat variety Ulyanovskaya 100 in the forest-steppe of the Middle Volga region. The factors used in the experiment contribute to a yield increase by 0.37 - 3.12 c / ha. The use of the Megamix-Zinc modification with complex mineral fertilizers gives the greatest yield increase compared with the control group which amounts to 11%. All modifications of the Megamix preparation have a positive effect on the structure elements of the spring wheat yield. The highest test weight is observed in the Megamix-Zinc option with previous application of mineral fertilizers. The increase in this indicator from the factors used was 4.8 - 18.7 g / l, depending on the option. Under the influence of the studied factors, the vitreousness of the spring wheat grain increases by 1.28 5.83%. Top dressing has a positive effect on the weight of 1000 seeds. This indicator increased by 0.49 - 2.80 grams, compared with the control option.


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