scholarly journals Effect of phosphorus application technique on effectiveness indices of its use in maize cultivation

2020 ◽  
Vol 66 (No. 10) ◽  
pp. 500-505
Author(s):  
Piotr Szulc ◽  
Przemysław Barłóg ◽  
Katarzyna Ambroży-Deręgowska ◽  
Iwona Mejza ◽  
Joanna Kobus-Cisowska ◽  
...  

The study presents results of 4-year field trials; their purpose was to assess the effectiveness indices of phosphorus recovery in maize cultivation depending on the depth of two-component fertiliser (NP) placement in the soil layer, type of nitrogen fertiliser (ammonium nitrate and urea) and time point of the application. The hypothesis of the experiment assumed that different depth of NP fertiliser placement improved the indices of phosphorus application in maize cultivation. Row fertilisation with two-component NP fertiliser, regardless of the year, clearly affected phosphorus accumulation (uptake) with grain yield. The recovery metabolism index, i.e., the phosphorus recovery of a mineral fertiliser component was at a low level (on average < 12%). Row application, regardless of the depth of fertiliser placement, was more effective in relation to broadcast sowing. The index of agricultural efficiency of phosphorus confirms the significant impact of the depth of NP fertiliser placement at 5 cm in the soil as optimal for agricultural practice. The use of nitrogen in maize cultivation before sowing, compared to the application of this component at the BBCH 15/16 stage, significantly increases agricultural effectiveness of phosphorus applied as mineral fertiliser. The placement of NP fertiliser deep in the soil profile was more effective compared to traditional broadcast fertilisation. The method of fertiliser application in maize cultivation can thus be a tool increasing cultivation profitability in both economic and environmental terms.  

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1488
Author(s):  
Piotr Szulc ◽  
Przemysław Barłóg ◽  
Katarzyna Ambroży-Deręgowska ◽  
Iwona Mejza ◽  
Joanna Kobus-Cisowska

This study presents the results of a four-year field experiment assessing the effectiveness of phosphorus application in maize cultivation according to the depth of two-component fertilizer (NP) placement in the soil layer, type of nitrogen fertilizer and date of application. Nitrogen utilization from mineral fertilizer was low—on average, 37.1% during the four years of research. The nitrogen metabolism index, measuring the agricultural and physiological efficiency of nitrogen use, confirmed the significant impact of NP fertilizer placement at 10 and 5 cm as optimal in maize fertilization. The use of nitrogen in maize cultivation before sowing, compared to the application of this component at the phase of 5-6 leaves BBCH 15/16 stage (stage of leaf development with five–six leaves unfolded), significantly increased the agricultural and physiological effectiveness of nitrogen applied in mineral fertilizer. Ammonium nitrate application before sowing the maize, compared to top dressing at the BBCH 15/16 stage, significantly increased nitrogen uptake and utilization from mineral fertilizer. Date of urea fertilizer application to the soil did not have a significant impact on these indicators in maize cultivation.


2020 ◽  
Vol 66 (No. 1) ◽  
pp. 14-21 ◽  
Author(s):  
Piotr Szulc ◽  
Wioletta Wilczewska ◽  
Katarzyna Ambroży-Deręgowska ◽  
Iwona Mejza ◽  
Daria Szymanowska ◽  
...  

The study presents the results of 4-year field trials; their purpose was to assess maize yield in relation to the depth of a mineral two-component (NP) fertiliser application in the soil layer, the type of nitrogen fertiliser (ammonium nitrate and urea) and the date of its application. The yield grain was significantly dependent on changing weather conditions in the growing seasons. Initial fertilisation with two-component NP fertiliser, regardless of the years, significantly affected the grain yield. Row fertilisation with two-component NP fertiliser increases the availability of phosphorus in the acid soil environment, elevating maize grain yield. The efficiency of row NP fertiliser application is determined by the natural soil richness in phosphorus. Maize grain yield depended more on the date of application than the form of nitrogen, and its application before sowing was more effective. The application of ammonium nitrate in the BBCH 15/16 stage significantly reduced the number of production ears per unit area compared to the pre-sowing application of this fertiliser. Deep fertiliser placement under the soil surface can be another tool to alleviate the negative consequences of the increasingly high temperatures and droughts.


2008 ◽  
Vol 63 (2) ◽  
Author(s):  
Petr Šařec ◽  
Ondřej Šařec ◽  
Katarzyna Gil

Author(s):  
U. Pinnis ◽  
Ā. Ruciņš ◽  
A. Vilde ◽  
S. Cēsnieks

Comparative studies have been carried out to estimate the possibilities, purposefulness and efficiency of combine soil tollage, fertilising and sowing machines and units for field crops used on peasant farms under the Baltic conditions. It is found out that most widely used machines and units are aggregates combining pre-sowing tillage of soil (combined cultivators, or revolving power harrow), mineral fertiliser application (pneumatic distributors) and grain sowing (pneumatic, or mechanical sowing machines). As to the agrotechnical terms, the ploughing-sowing aggregates may have limited application. The most suitable are tractor-mounted machines. For combined aggregates preference should be given to more powerful tractors having frontally mounted equipment as well. In contrast to single-operational machines, the use of combined aggregates removes the weather risk, improves the quality of work, raises their efficiency, reduces the consumption of energy and fuel (accordingly, the amount of harmful exhaust gases) and cuts the total costs by 10-18 %. For agrotechnical, energetic, economical and ecological considerations the up-to-date combined aggregates of soil tillage; fertiliser application and sowing are efficient and should be widely introduced on the farms of Latvia.


Soil Research ◽  
2017 ◽  
Vol 55 (3) ◽  
pp. 285 ◽  
Author(s):  
Xiaolong Ren ◽  
Peng Zhang ◽  
Xiaoli Liu ◽  
Shahzad Ali ◽  
Xiaoli Chen ◽  
...  

Rain-harvesting planting can improve crop biomass and enhance precipitation use efficiency in rainfed semiarid areas. In this study, field trials were conducted during summer 2007–2010 to determine the impacts of different mulching patterns in rainfall harvesting planting on spring corn growth and development in a typical semihumid dryland farming area of the Loess Plateau in China, which is characterised by spring droughts. Rain-harvesting ridges and planting furrows were mulched with 8% biodegradable film (RCSB), liquid film (RCSL), or not mulched (RCSN), and bare land drilling without mulching served as the control (CF). We found that the rain-harvesting effects of ridges and the evaporation-inhibiting and moisture-conserving effects of mulching materials during the spring corn growing season significantly increased water storage in the 0–100cm soil layer (P<0.05) compared with CF, where mulching was more beneficial than the non-mulching treatments. In the 100–200cm soil layers, there were no significant effects (P>0.05) of the treatments on water storage. During 2007–2010, the average plant height increased by 26.6%, 15.4%, and 11.1% under RCSB, RCSL, and RCSN relative to CF respectively, whereas the per plant biomass increased by 26.6%, 15.4%, and 11.1% under these treatments, and the grain yield increased by 32.3%, 17.5%, and 15.0%. Therefore, in the semihumid dryland farming areas of the Loess Plateau, rain-harvesting planting greatly increased the growth, development, and dry matter accumulation by spring corn, thereby enhancing its biomass yield, whereas the plastic-covered ridges and furrows mulched with biodegradable films substantially increased the yield-enhancing effects.


2002 ◽  
Vol 42 (8) ◽  
pp. 1103 ◽  
Author(s):  
G. R. Valizadeh ◽  
Z. Rengel ◽  
A. W. Rate

The growth response of wheat genotypes supplied with phosphorus fertiliser at different rates (banded or mixed throughout the soil) and sparingly soluble phosphorus sources (aluminium phosphate and iron phosphate) is not known. Eleven wheat genotypes and 1 rye genotype were tested at 3 rates of phosphorus fertiliser application (5, 10 and 20 mg P/kg soil) in a pot study. Another experiment compared 4 wheat genotypes at 2 rates of phosphorus application (deficient and sufficient) and 2 application methods (banding and mixing throughout the soil). The selected wheat genotypes were also used to investigate growth and root exudation response to iron phosphate and aluminium phosphate supply. Banding of phosphorus fertiliser increased the uptake of phosphorus and wheat growth compared with mixing phosphorus throughout the soil. Wheat genotypes did not differ significantly in growth and phosphorus uptake at the low rate of application. With increasing rates of phosphorus supply, the 2 phosphorus-fertiliser-responsive wheat genotypes (Wawht 2074 and Aroona) had significantly increased phosphorus uptake and root and shoot weights. When supplied with aluminium phosphate and iron phosphate, the 2 phosphorus-fertiliser-responsive genotypes had larger roots and higher concentration of phosphorus in the shoots and roots, while the phosphorus utilisation-efficient wheat genotypes (Westonia and Gutha) had higher shoot weights than phosphorus fertiliser-responsive ones. All wheat genotypes produced quantitatively and qualitatively similar root exudates in the iron phosphate, aluminium phosphate and zero-phosphorus treatments. The aluminium phosphate treatment caused genotypes to increase root exudation of oxalic anions, uptake of phosphorus and growth, compared with the iron phosphate treatment. It was concluded that the choice of genotypes for achieving increased wheat growth would depend on the phosphorus source in soil and the rate of application of phosphorus fertiliser.


2020 ◽  
Vol 224 ◽  
pp. 04011
Author(s):  
V. E. Lazko ◽  
O V Yakimova

At the breeding site of the winter onion variety Ellan, the effect of the planting depth of mother bulbs of two fractions on lodging of stems and seed productivity was studied. It was found that in winter, with the depth of planting the bulbs in the soil horizon, the processes of differentiation and the formation of microstalks noticeably slow down, and the biochemical composition of the bulbs shows a decrease in the activity of metabolic processes. Thanks to this and the buffering properties of the soil, the safety of plants in winter is very high when planted to a depth of 15 cm. Deeper planting has a negative effect on the growth of leaves. At a planting depth of 15-20 cm, the stems remain upright due to the soil layer. The angle of inclination of 82 ... 86% of the stems is not more than 450 and occupies no more than 50 cm of the width of the projection of the row. When planted to a depth of 10 cm, the stems crumble, agronomic measures, the phytosanitary state of seed production and harvesting are hampered. It was found that the effect of bulb size on seed productivity of one stem is 42%. The increase in planting for the yield of one plant and the yield is 44 ... 45%. When setting seed onions, it is recommended to plant uterine bulbs to a depth of 15 cm. This planting depth ensures the maximum safety of the bulbs in winter, excludes lodging of the stems and the maximum possible seed yield. There is no need for additional hilling or tying of the stems, as with a planting depth of 10 cm.


2021 ◽  
Vol 843 (1) ◽  
pp. 012023
Author(s):  
V K Dridiger ◽  
R G Gadzhiumarov

Abstract The research was carried out at the experimental field of the North Caucasus Federal Research Center. In the field, years of experience, founded in 2012, in crop rotation of soybean-winter wheat-sunflower-corn all crops cultivated on the recommended scientific institutions technology soil treatment, and these same crops in the same crop turnover has grown by No-till technology. The recommended technology of maize cultivation consisted of soil double tillage by the heavy disk tools to the depth of 0.120-0.140 m immediately after harvesting the previous sunflower, winter plowing at 0.200-0.220 m, early spring harrowing, pre-sowing cultivation and sowing with an Optima seeder. In the No-till technology, the soil was not treated and ten days before corn sowing, the plots were sprayed with a continuous herbicide Rap 600 at a dose of 2 l/ha. The research showed that better accumulation and conservation of moisture can be provided during the flowering of maize with the content in the soil layer of 1.5 m at the depth of 34 mm, or 18.1% more moisture than usage of the technology with tillage which is recommended by scientific institutions. It contributes to a significant increase of 0.42 t/ha, or 12.0% in crop yield by using this technology.


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