INTERACTION OF POTASSIUM AND CALCIUM REGIMES OF LEACHED CHERNOZEM IN MULTI-YEAR APPLICATION OF FERTILIZERS AND AMELIORANT

1970 ◽  
pp. 53-58
Author(s):  
N. G. Myazin ◽  
А. N. Kozhokina ◽  
P. Т. Brekhov ◽  
P. I. Podrezov
Keyword(s):  
Sugar Beet ◽  
Soil Properties ◽  
Calcium Content ◽  
Mineral Fertilizers ◽  
Exchangeable Potassium ◽  
Protection Measures ◽  
Leached Chernozem ◽  
Soil Liming ◽  
Positive Effect

There is no alternative to soil liming as an environmental protection measures. It is difficult to overestimate the role that the application of calcium ameliorants has on soil properties. But besides a positive effect on soil properties, liming leads to some deterioration in the conditions of potassium plants nutrition. For studying this circumstance, researches were carried out in a long-term stationary experiment on leached chernozem in sugar beet agrocoenosis in the Voronezh region. It is established that the application of mineral fertilizers in doses of NPK of 120 and 240 kg / ha has resulted in a decrease of exchangeable calcium content in comparison with the backing variant by 0.7–1.2 mg-eq. / 100 g of soil. At the same time, there was an increase in soil availability of exchangeable potassium by one class in contrast with no treatment. In the case of soil liming, this process was less revealed — soil availability with exchangeable potassium remained at the level of control. With the application of mineral fertilizers on the back of organic aftereffect, the content of fixed potassium increased. The use of N120P120K120 provided 26 mg / kg of soil for a higher content of fixed potassium than the application of N240P240K240. The highest content of fixed potassium was observed with a joint consequence of manure and defecation - 649 mg / kg of soil. An increase in the activity of calcium ions in the soil led to a decrease in the activity of potassium ions. The interinfluence of these indicators was intensified by applying calcium ameliorants into the soil. The correlation coefficient between the pCa value and the potassium potential of the non-liming soil was - (–0.675) before sowing sugar beet and (–0.684) before harvesting, and on the ameliorated variants (–0.814) and (–0.500), respectively. Applying mineral fertilizers on various grounds increased crop yield by 16.0–18.2 t / ha in comparison with no treatment.

scholarly journals Agro-economic substantiation of the feasibility of green manured fallow in sugar beet crop rotations of the Central Chernozem Region

2021 ◽  
Vol 32 ◽  
pp. 02001
Author(s):  
Alexander Akimenko ◽  
Vyacheslav Sviridov ◽  
Tatiana Dudkina
Keyword(s):  
Sugar Beet ◽  
Crop Rotation ◽  
Crop Rotations ◽  
Mineral Fertilizers ◽  
Typical Chernozem ◽  
Central Chernozem Region ◽  
Sugar Beet Crop ◽  
Absolute Decrease ◽  
Central Chernozem

The aim of the study is to find out the feasibility of including green manured fallow in specialized sugar beet crop rotations by comparing necessary assessment indicators with their values in a traditional crop rotation with black fallow against the background of unequal fertilization levels. The study was based on the analysis of experimental data from a long-term stationary experiment, laid out simultaneously in all fields and variants on typical chernozem in triplicate. The results are as follows: within the same fertilization levels, no significant differences in the yield of winter wheat (sugar beet precursor) were revealed, and the yield of sugar beet in a crop rotation with green manured fallow was stably higher (no more than 5 to 7%), an increase in yield relative to the control fertilizer variant (6 tons of manure per hectare per year) against the background of a double rate of manure in combination with mineral fertilizers amounted to 21.7 to 23.4% for wheat and 14.3 to 15.6% for beets with an increase in the productivity of crop rotations (in natural and value terms) by 1.2 times, but an increase in costs by 1.3 times caused an absolute decrease in the level of profitability by 23 to 25%. Differences in the assessment indicators for specific fertilization variants increased over time due to an unequal degree of soil fertility reproduction, and therefore in the fifth cycle of the crop rotation with black fallow turned out to be 1.1 to 1.3 times greater than in the green manured rotation.

scholarly journals YIELD OF PERENNIAL GRASSES AND SOIL FERTILITY OF SOD-PODZOLIC SOIL IN CASE OF LONG-TERM APPLICATION OF MINERAL FERTILIZERS

2021 ◽  
Vol 250 ◽  
pp. 71-77
Author(s):  
A. Yu. Gavrilova ◽  
◽  
A. M. Konova ◽  
Keyword(s):  
Perennial Grasses ◽  
Mineral Fertilizers ◽  
Yield And Quality ◽  
Mobile Forms ◽  
Unit Dose ◽  
Phosphorus And Potassium ◽  
Higher Doses ◽  
Positive Effect

The article considers the effect of increasing doses and various combinations of mineral fertilizers applied to the cover crop on the yield and quality of a mixture of perennial grasses of two - years use, as well as the effect of fertilizers on the agrochemical parameters of sod-podzolic light loamy soil. The objects of the study were Stodolich meadow clover and Leningradskaya 204 meadow timothy grass. The studies were carried out in two crop rotations - with standard and reduced single doses of mineral fertilizers. The research results showed that in the years (VIII rotation) when the unit dose of fertilizers was increased to N20P20K25, the yield of perennial grasses was higher compared to the harvest in the VII rotation. The most appropriate dose in the VII rotation on perennial grasses of the 1st year was N30P30K45, on grasses of the 2nd year - doses of N30P30K45 and N40P40K60. In the VIII rotation, the highest yield of perennial grasses of the 1st year of use was obtained at a dose of N160P160K200 (8.4 t / ha), of grasses of the 2nd year of use at doses of N80P80K100 and N100P100K125 (6.5 t / ha). Positive effect of increasing doses of mineral fertilizers on the content of soil organic matter has been noted. On the contrary, the soil acidity increased from 4.7 to 4.3 units with an increase of mineral doses. Higher doses of fertilizers increased the content of mobile forms of phosphorus and potassium in the soil.

Efficiency of organic and mineral fertilizers under sugar beet and watermelon

2021 ◽  
Vol 03 (01) ◽  
pp. 40-46
Author(s):  
Hasil Cəmil oğlu Bağırov ◽  
◽  
Vüqar İmanəli oğlu Cəfərov ◽  
Arzu Vidadi qızı Həşimova ◽  
Rəşidə Elşən qızı Şükürova ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Quality Indicators ◽  
Point Of View ◽  
Agricultural Products ◽  
Mineral Fertilizers ◽  
Combined Application ◽  
Factors Influencing ◽  
Organic And Mineral Fertilizers ◽  
Positive Effect

Without knowing the main quality indicators of agricultural products, it is impossible to draw conclusions about the effectiveness of this or that agro-technical measure. One of the factors influencing the quality of sugar beet and watermelon is the effective application of fertilizers. Fertilizers increase the quality indicators of the product along with its expansion. From this point of view, the effect of organic and mineral fertilizers on the quality indicators of sugar beet and watermelon product in the meadow-gray soils of Mugan-Salyan region was studied. The combined application of organic and mineral fertilizers had a positive effect on the quality indicators of sugar beet and watermelon. Key words: organic and mineral fertilizers, sugar beet, watermelon, phosphorus, potassium, productivity, soil, quality

Long-term nitrogen, phosphorus and potassium fertilization of cassava influences soil chemical properties in North Vietnam

2001 ◽  
Vol 81 (4) ◽  
pp. 481-488 ◽  
Author(s):  
Hung Nguyen ◽  
J J Schoenau ◽  
K. C.J. Van Rees ◽  
Dang Nguyen ◽  
P. Qian
Keyword(s):  
Soil Properties ◽  
Chemical Properties ◽  
Soil Chemical Properties ◽  
Mineral Fertilizers ◽  
Inorganic P ◽  
Total Soil ◽  
North Vietnam ◽  
Nitrogen Phosphorus ◽  
Soil Inorganic

The long-term effects of yearly fertilizer applications on soil chemical properties and nutrient availability are not well documented for cassava (Manihot esculenta) production in Vietnam. In 1990, research plots were established (randomized complete block design) with 12 treatments to test effects of different rates of N, P and K on soil properties in Acrisols (FAO-UNESCO Soil Classification) at Thai Nguyen University, North Vietnam. In June 1998, composite soil samples (0- to 10-cm and 10- to 20-cm depth) were collected from each plot. Nine years of N application significantly reduced the labile pools of soil inorganic P, total soil P and soil extractable K and Mg. Total soil N was only slightly increased in the 10- to 30-cm depth. Long-term applications of P significantly increased soil inorganic P fractions, but reduced concentrations and supply rates of nitrate and K. Moreover, 9 yr of K application significantly increased soil organic C (two depths), soil total N (10-30 cm) and soil extractable K in the 0- to 10-cm depth. Generally, the results show that long-term applications of mineral fertilizers in a ratio of N:P2O5:K2O of 2:1:2 (at the rates of 80 N:40 P2O5:80 K2O or 160 N:80 P2O5:160 K2O) are effective in maintaining the total content and availability of applied nutrients, but when applied alone are associated with decreases in other nutrients. Key words: Nitrogen, phosphorus, potassium fertilizers, cassava, ion exchange resin, soil properties

scholarly journals THE EFFECT OF SEEDBED TREATMENT BY THE PROTECTING PREPARATIONS AND MINERAL FERTILIZERS ON SEED QUALITY

2018 ◽  
pp. 11-14 ◽  
Author(s):  
E. N. Shabolkina ◽  
L. K. Neshcheret ◽  
N. V. Anisimkina ◽  
O. V. Shuvalova ◽  
M. V. Belyaeva
Keyword(s):  
Seed Production ◽  
Seed Quality ◽  
Preventive Measures ◽  
Organizational Factors ◽  
Mineral Fertilizers ◽  
Atmospheric Air ◽  
Seed Disinfection ◽  
Positive Effect ◽  
Long Term Studies

Soil fertility decrease, economic and organizational factors reduce the valuable qualities of the varieties, and therefore the preventive measures that prevent deterioration of the variety are of great importance. Seedbed treatment, such as disinfection of seeds with the preparations that have a healing effect from various diseases, soil pests and air-thermal treatment of seeds, application of mineral fertilizers are important measures necessary for effective seed production. Long-term studies conducted on experimental and industrial plots of the Samara RIA have established that seed disinfection with the preparations of systemic action ‘ScenicCombi’, ‘Lamador KS’, ‘Ranazol Ultra KS’ is the most effective. There has been estimated the effect of spring solar heating of seeds by warm atmospheric air, promoting their awakening, exit from ‘secondary dormancy’ and germination increase. There has been noted a positive effect of the full fertilizer on the sowing and yielding qualities of the seeds. There have been determined the optimal doses of fertilizers N30P30K30, N45P45K45 for seed production of winter wheat, spring wheat and barley with the best yielding properties (on 6.2–7.4% in comparison with the control).

scholarly journals Effect of Soil Conditioning on Soil Penetration Resistance and Traction Power Demand of Ploughing

2021 ◽  
Vol 67 (3) ◽  
pp. 113-123
Author(s):  
Géza Tuba ◽  
Györgyi Kovács ◽  
Lúcia Sinka ◽  
Pál Nagy ◽  
Arzu Rivera-Garcia ◽  
...  
Keyword(s):  
Soil Properties ◽  
Traction Force ◽  
Penetration Resistance ◽  
Untreated Plot ◽  
Power Demand ◽  
Soil Conditioning ◽  
Set Up ◽  
Positive Effect ◽  
Traction Power

Abstract Soil compaction and degradation due to improper tillage are problems involving significant natural and economic damages. On compacted soils, suitable cultivation can be implemented only with higher energy and traction force input. In our study, the effect of a soil conditioner (Neosol) was examined on the penetration resistance of the soil and the traction power demand for ploughing in the experiment set up in the East-Slovak Plain in 2017 ‒ 2018 to justify several preliminary results showing that long-term soil conditioning results in enhanced root system, improved soil structure, cultivability, water- and salt regime. We found a positive effect of Neosol application with both investigated parameters and its long-term effect was also justified. The penetration resistance values of the soil of the untreated plot were 17 ‒ 23% higher, while the traction power demand values were 9 ‒ 32% lower in comparison with the Neosol treated plot in the first and the second year of the study, respectively. We assume the cumulative positive effect of soil conditioning on the physical soil properties in the study area, therefore the long-term application of Neosol is recommended for farms having similar soil properties.

scholarly journals Stinging Nettle (Urtica dioica L.) as an Aqueous Plant-Based Extract Fertilizer in Green Bean (Phaseolus vulgaris L.) Sustainable Agriculture

2021 ◽  
Vol 13 (7) ◽  
pp. 4042
Author(s):  
Branka Maričić ◽  
Sanja Radman ◽  
Marija Romić ◽  
Josipa Perković ◽  
Nikola Major ◽  
...  
Keyword(s):  
Organic Production ◽  
Green Bean ◽  
Mineral Fertilizers ◽  
Stinging Nettle ◽  
Short Term ◽  
Mineral Fertilization ◽  
Growing Seasons ◽  
And Control ◽  
Positive Effect

Plant-based fertilizers, such as liquid plant extracts, contribute to the cultivation of vegetables, particularly in organic production. The objective of this study was to determine if aqueous nettle extract could be successfully used as a fertilizer, applied on the soil and foliarly, in green bean production under field conditions. The hypothesis was that it could successfully replace mineral fertilizers and be integrated into sustainable and organic agriculture. The experiment was conducted at two climatically and pedologically different locations (Zadar and Poreč) throughout two growing seasons (spring and autumn). Two types of aqueous nettle extracts were used: a short-term extract (SE) was prepared by the extraction of wild stinging nettle (183 g 10 L−1 of water) in water for 24 h, while a long-term extract (LE) was prepared at the same ratio with water extraction for 14 days. Both extracts were diluted with water at a ratio of 1:3 (extract:water) before use. The SE was applied foliarly, and LE, by pouring it onto the soil. The abovementioned treatments were compared with mineral fertilization with urea (U) and control (no fertilization (C)). Foliar fertilization with SE proved to be almost as efficient as fertilization with LE, poured onto soil, showing a positive effect on green bean vegetative parameters. Furthermore, aqueous nettle extracts showed a positive effect on the iron accumulation in the leaves.

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