Grain productivity of winter wheat as affected by complex fertilizers in the North-West of Russia

Author(s):  
Т. Шайкова ◽  
М. Дятлова ◽  
Е. Волкова ◽  
И. Степанова

В статье представлены данные о влиянии новых комплексных удобрений на урожай зерна и биометрические показатели структуры озимой пшеницы, возделываемой на дерново-подзолистой почве. В исследованиях были изучены способы внесения комплексных удобрений: предпосевная обработка семян комплексным удобрением «Микромак» и двукратное внекорневое внесение препаратов «Кодима Р», «Кодафол», «Микроэл», «Страда N». Исследования проводились на двух минеральных фонах: фон 1 — N40P50K70, фон 2 — N40P50K70 + N20. Внесение N40P50K70 в качестве основного удобрения способствовало повышению зерновой продуктивности на 0,53–0,59 т/га, или на 27,7–32,8% к контролю. Все изучаемые препараты оказывали положительное влияние на урожайность зерна озимой пшеницы. Существенные различия в сторону увеличения зерновой продуктивности получены при совместном применении предпосевной обработки семян препаратом «Микромак» с последующей двойной обработкой вегетирующих растений препаратом «Страда N» на фоне N40P50K70, где прибавка к контролю составила 0,82 т/га, или 42,9%. В данном варианте от применения препарата «Страда N» дополнительно к минеральному фону было получено зерна 0,29 т/га; от препарата «Микромак» — 0,27 т/га. Достоверное увеличение зерновой продуктивности получено и от обработок вегетирующих растений препаратом «Микроэл», где дополнительно к фону 1 получено 0,22 т/га зерна. Под влиянием обработки семян препаратом «Микромак» увеличилась энергия прорастания семян озимой пшеницы с 56 до 69% и всхожесть — с 89 до 94%. Отмечено положительное действие данного препарата на элементы структуры урожая: увеличилось количество продуктивных стеблей с 2,5 до 3,8 шт., масса 1000 зёрен выросла с 42,8 до 43,6 г. This article reports on the effect of new complex fertilizers on grain yield and biometrics of winter wheat grown on sod-podzolic soil. The investigation tested fertilization techniques: seed treatment with “Mikromak” fertilizer and topdressing by “Kodima R”, “Kodafol”, “Mikroel” and “Strada N” preparations repeated twice. Two mineral backgrounds were used: variant 1 — N40P50K70, and variant 2 — N40P50K70 + N20. Application of N40P50K70 increased grain productivity by 0.53–0.59 t ha-1, or 27.7–32.8%. All the preparations positively affected wheat performance. Seed treatment with “Mikromak” followed by “Strada N” application significantly improved grain productivity on the background of N40P50K70, exceeding the control by 0.82 t ha-1, or 42.9%. “Strada N” provided the increase of 0.29 t ha-1, “Mikromak” — 0.27 t ha-1. “Mikroel” significantly increased grain yield by 0.22 t ha-1. “Mikromak” improved germination rate from 56 to 69% and germination capacity — from 89 to 94%. Treatment with “Mikromak” resulted in increase of number of productive stems from 2.5 to 3.8 pcs and thousand grain weight — from 42.8 to 43.6 g.

Author(s):  
P. А. Ageeva ◽  
М. V. Matyukhina ◽  
N. А. Pochutina ◽  
O. M. Gromova

The narrow-leafed lupin (Lupinus angustifolius L.) is a valuable legumes crop used as forage and green manure which is adapted to wide spectrum of soil-and climatic conditions; the crop has short domestication history. The protein content in its seeds and in dry matter of green mass varies from 30.0 to 37.0% and from 16.0 to 22.0 % respectively and depends on ecotype and soil-and-climatic conditions. This lupin specie can accumulate to 300 kg/ha symbiotic nitrogen in biomass and assimilates phosphorus and potassium of heavy available soil layers. It is very technological suitable for common used machinery systems. The State List of breeding achievements of Russia recommends the following regions for lupin cultivation: the North, the North-West, the Central, the Volga-Vyatka, the Middle-Volga, the Central Chernozem, the Ural, the West Siberia and the East Siberia. The tests were carried out in 2017-2020 in the All-Russian Lupin Scientific Research Institute which is located in the South-West of the Central region. Ten varieties and breeding lines bred in the Institute are tested. The samples differ by early ripeness and anthracnose tolerance. The average experimental variety grain yield was 2.38 t/ha. The vars. Uzkolistny 53-02, USN 53-236, Bryanskiy kormovoy and SBS 56-15 have the highest yield and adaptivity (103-113 %). The index of year conditions was revealed; 2017 with the index 0.56 was the most favorable for implementation of grain productivity of the tested narrow-leafed lupin varieties. In the ecological varieties testing the soil-and-climatic conditions of Shatilovskaya experimental station (Orel region) were the most favorable for implementation of variety grain productivity (4.0-4.5 t/ha). Grain yield was 3.0-4.0 t/ha in ecological locations which differ in soil-and-climatic conditions: there are Kaliningrad region, Mordovia Republic, Krasnoyarsk region etc.


2021 ◽  
Vol 16 (6) ◽  
pp. 70-78
Author(s):  
M. V. Kuzenko

A phased research work was carried out in the natural and climatic conditions of the southern foothill zone of the North-West Caucasus to study and identify adaptive properties and economically significant traits in various wheat lines bred by the Research Institute of Field Crops in the city of Dingxi, Gansu province (the PRC). The research was carried out to study and isolate grain productivity, resistance to the conditions of the autumn-winter period, lodging and diseases, as well as searching for a new source material for breeding work with a winter wheat crop. The studies included phenological observations, assessment of resistance to abiotic and biotic factors, analysis of sheaf material. In the course of the study, it was revealed that the tested wheat samples had differences in resistance to unfavorable conditions of the autumn-winter period. In the first year of the research, samples No. 1, No. 2 died, so did No. 6 in the second year. The stability of overwintered samples was marked at the level of 7 points. Samples No. 10, No. 11 were characterized by low resistance to lodging. The main part of the studied material of winter wheat had a growing season with sprouts and heading 6-8 days shorter than the standard Grom variety. Sample No. 2 was distinguished by the maximum distribution and development of brown rust, No. 7 – by Septoria disease. The grain yield varied at the level of 90–310 g/m2. Sample No. 4 (310 g/m2) and No. 7 (270 g/m2) showed a significantly higher grain yield than the standard of Grom variety (220 g/m2). The mass of 1 000 grains ranged from 30,0 g to 46,1 g. The height of the plants varied in the range of 55,2–111,9 cm. Sample No. 16 had the longest spike (9,8 cm). According to the number of grains of the main spike and the weight of grain, No. 16 stood out from the main spike. The maximum grain weight per plant was shown by No. 15 (5,6 g), No. 16 (4,8 g), No. 12 (5,1 g). The results of the initial comprehensive assessment indicate the possible use of these lines in agricultural production, as well as a starting material. Prospects for further study have been considered.


2021 ◽  
Vol 17 (3) ◽  
pp. 71-76
Author(s):  
M. V. Kuzenko

The article presents studies carried out in 2018–2019 and 2019–2020 in the southern foothill zone of the North-West Caucasus in the fields of the selection and primary seed produc- tion department of the Adygh Research Institute of Agriculture. The aim was to study the actual, biological or potential yield of winter soft wheat varieties cultivated in the region, as well as the ratio of the mass of the grain part and the harvested straw - the yield index. The studied varieties were divided into groups according to plant height: semi-dwarfs (up to 90 cm), short-stemmed (up to 105 cm), medium-sized (up to 120 cm). According to the results of the studies carried out, differences in the studied characteristics were revealed. In the group of semi-dwarf varieties, the grain yield varied from 7,25 to 8,05 t/ha, short-stemmed 7,78–8,91 t/ha, medium-sized 7,34–9,60 t/ha. The highest grain yield was shown by the Vekha variety (9,60 t/ha) belonging to the group of medium-sized varieties, from the short-stemmed Maikopchanka varieties (8,91 t/ha) stood out, Kalym semi-dwarf varieties (8,05 t/ha). The biological yield in the experiment varied from 9,37 to 15,29 t/ha. From semi-dwarf varieties, Grom stood out (14,06 t/ha), short-stemmed varieties – Mafe (10,8 t/ha), medium-sized varieties – Vekha (15,29 t/ha). The difference between the actual and biological grain yield of varieties belonging to the short-stem group was the smallest in comparison with the varieties of the semi-dwarf and medium-grown group. On average, over two years of research, the harvesting index was 46,9–53,2%. Semi-dwarf winter wheat varieties had the maximum value of this indicator. In the group of short-stemmed Grom and Graf varieties, the ratio of the mass of the grain part to the harvested straw varied from 46,8% (Velena) to 50,5% (Alekseich). The harvesting index for medium-sized varieties was at the level of 46,9–51,8%. The Vekha variety, which showed the maximum value, stood out from this group.


1974 ◽  
Vol 10 (2) ◽  
pp. 81-86 ◽  
Author(s):  
K. P. Prabhakaran Nair ◽  
R. P. Singh

SUMMARYAt Pantnagar, India, linear response in maize to nitrogen application was observed up to 150 kg. of N/ha. with some of the most promising hybrids and composites released by the All India Co-ordinated Maize Improvement Programme. Increase in grain yield, and total nitrogen accumulation in grain, were substantially more in Ganga 2 than in the local cultivar or the composites, at higher rates of N application. In absolute terms, the local cultivar accumulated more nitrogen in its grain, but the relative amounts declined at higher rates of N application. Among the yield components influencing ultimate grain yield, barrenness exerted a negative influence on grain yield through the number of cobs per plot. Among cob characters, such as thousand grain weight and number of grains per cob, the former exerted a substantial influence on grain yield.


2018 ◽  
Vol 221 ◽  
pp. 219-227 ◽  
Author(s):  
Xuexin Xu ◽  
Meng Zhang ◽  
Jinpeng Li ◽  
Zuqiang Liu ◽  
Zhigan Zhao ◽  
...  

2008 ◽  
Vol 59 (3) ◽  
pp. 247 ◽  
Author(s):  
David W. Lester ◽  
Colin J. Birch ◽  
Chris W. Dowling

Nitrogen (N) and phosphorus (P) are the 2 most limiting nutrients for grain production within the northern grains region of Australia. The response to fertiliser N and P inputs is influenced partly by the age of cultivation for cropping, following a land use change from native pasture. There are few studies that have assessed the effects of both N and P fertiliser inputs on grain yield and soil fertility in the long term on soils with contrasting ages of cultivation with fertility levels that are running down v. those already at the new equilibrium. Two long-term N × P experiments were established in the northern grains region: one in 1985 on an old (>40 years) cultivation soil on the Darling Downs, Qld; the second in 1996 on relatively new (10 years) cultivation on the north-west plains of NSW. Both experiments consisted of fertiliser N rates from nil to 120 kg N/ha.crop in factorial combination with fertiliser P from nil to 20 kg P/ha.crop. Opportunity cropping is practiced at both sites, with winter and summer cereals and legumes sown. On the old cultivation soil, fertiliser N responses were large and consistent for short-fallow crops, while long fallowing reduced the size and frequency of N response. Short-fallow sorghum in particular has responded up to the highest rate of fertiliser N (120 kg N/ha.crop). Average yield increase with fertiliser N compared with nil for 5 short-fallow sorghum crops was 1440, 2650, and 3010 kg/ha for the 40, 80, and 120 kg N/ha, respectively. Average agronomic efficiency of N for these crops was 36, 33, and 25 kg grain/kg fertiliser N applied. This contrasts with relatively new cultivation soil, where fertiliser N response was generally limited to the first 30 kg N/ha applied during periods of high cropping intensity. Response to P input was consistent for crop species, VAM sensitivity, and starting soil test P level. At both the old and new cultivation sites, generally all winter cereals responded to a 10 kg P/ha application, and more than half of long-fallow sorghum crops from both sites had increased grain yield with P application. At the old cultivation site, average yield gain for 10 kg P/ha.crop treatment was 480 kg/ha for all winter cereal sowings, and 180 kg/ha for long-fallow sorghum. Short-fallow sorghum did not show yield response to P treatment.


2019 ◽  
Vol 70 (9) ◽  
pp. 772 ◽  
Author(s):  
Su-Wei Feng ◽  
Zhen-Gang Ru ◽  
Wei-Hua Ding ◽  
Tie-Zhu Hu ◽  
Gan Li

Winter wheat (Triticum aestivum L.) production in the North China Plain (NCP) is threatened by wheat lodging. Therefore, enhancing plant lodging resistance by improving stem quality traits is crucial to maintaining high stable yields of winter wheat. A consecutive 7-year field experiment was conducted to study the effects of stem traits on lodging resistance and the yield of four winter wheat cultivars (Bainong 418, Aikang 58, Wenmai 6 and Zhoumai 18). The results indicated that rainfall is often accompanied by strong winds that can cause lodging in the field. Stalk bending strength and wall thickness of the second internode showed significant negative correlations with lodging index, and a higher lodging index indicated increased lodging risk, which, in turn, could seriously affect the grain yield of wheat. Significant regression relationships were observed between lodging index and population lodging resistance strength, as measured using a crop lodging resistance electronic measuring device. Statistical analysis revealed that yield components and the grain yield of Bainong 418 were higher than those of the other cultivars; there was no significant difference between Bainong 418 and Aikang 58 in lodging index, stalk bending strength or single-stalk and population lodging resistance strengths at anthesis and the middle filling stages, but the mean plant height of Bainong 418 was significantly higher than that of Aikang 58. These results provide a new and reliable method for assessing lodging resistance capacity and indicate that greater lodging resistance, as determined by simultaneously considering plant height and basal stem strength, is an important way to achieve high, stable yield in winter wheat.


1992 ◽  
Vol 72 (1) ◽  
pp. 13-19 ◽  
Author(s):  
B. J. Zebarth ◽  
R. W. Sheard

Several previous studies have reported that grain yield of cereal crops was greater from multiple than from single nitrogen (N) applications. The purpose of the study was to determine the influence of the time and rate of N application on the yield and quality of hard red winter wheat grown in Ontario. One experiment was conducted in each of 2 yr using a factorial arrangement of treatments. Factors were rate of N application (40, 80, 120, 160, 200 or 240 kg N ha−1), and timing of N application (100/0/0, 75/25/0, 50/50/0 or 25/50/25 percent of the N applied at Zadok’s growth stages 22/32/45). Early N application reduced grain yield in a year of below-average precipitation, increased grain yield in a year of average precipitation, and increased straw yield in both years. Late N application increased grain crude protein concentration and harvest index in both years. Given the lack of a consistent yield increase and the added cost of application, it is unlikely that multiple N applications will be economical for hard red winter wheat production in Ontario.Key words: Triticum aestivum, intensive cereal management, yield components, wheat


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