Comparison of the methods of soil phosphorus diagnostics on the chernozems of the Novosibirsk Priobye

Research data on the evaluation of three chemical methods for soil diagnostics of phosphorus nutrition of grain crops on leached chernozem is presented. In small-plot field experiments (9 m2 ) in the Iskitimsky (soil 1) and Ordynsky (soil 2) districts of the Novosibirsk region, against the background of N60K60, different doses of ammophos were applied to spring wheat – 30, 60 and 90 kg a.i./ha. The initial content of mobile phosphorus in the soils according to the Chirikov method showed that there was no need for grain crops to additionally apply phosphorus fertilizers, while according to the methods of Karpinsky-Zamyatina and Nikolov, their insufficient supply of phosphorus was clearly visible. Field studies indicate the high effect of phosphorus-containing fertilizers. On soil 1, grain yield from 30 kg P2 O5 increased by 0.28 t/ha, or 11% compared to the control. The maximum efficiency of the fertilizer was observed when applying 60 kg of P2 O5 . In experiment on soil 2, where the supply of P2 O5 is noticeably lower, the positive effect of ammophos is most pronounced. The maximum increase in grain was obtained from 90 kg of P2 O5 – 0.82 t/ha (50% higher than in the control). When applying 90 kg of phosphorus fertilizers per hectare, a significant increase in the tillering coefficient of plants was observed. The increase in grain yield from additional phosphorus occurred due to an increase in the weight of the wheat ear. So on soil 2, the weight of the ear in the P60 and P90 variants was 23 and 36% higher, respectively, than in the control. Data on the dynamics of the content of mobile phosphorus in the soil made it possible to preliminary assess the objectivity of the three studied chemical methods for diagnosing the conditions of phosphorus nutrition. The inadequacy of the standard Chirikov me-thod for the purposes of soil diagnostics on leached chernozem of the Novosibirsk Ob region has been confirmed. The actual supply of grain crops with phosphorus was reflected by chemical methods of soil analysis according to Karpinsky-Zamyatina and Nikolov. 

1. Volynkina O.V. The nutrient balance on sowing of agricultural crops. Plodorodie = Plodorodie, 2020, no. 4 (115), pp. 13–16. (In Russian). DOI: 10.25680/S 19948603.2020.115.04.

2. Shuliko N.N., Khamova O.F., Voronkova N.A., Tukmacheva E.V., Doronenko V.D. Effect of the complex fertilization and biopreparations on effective fertility of leached chernozem and barley productivity. Agrokhimiya = Agricultural Chemistry, 2019, no. 2, pp. 13–20. (In Russian). DOI: 10.1134/S0002188119020133.

3. Plotnikov A.M. Dependence of the yield of grain crops on the content in the soil of available forms of phosphorus and potassium. Vestnik Kurganskoi gosudarstvennoi selskokhozyaistvennoi akademii = Bulletin of the Kurgan State Agricultural Academy, 2019, no. 1, pp. 17–20. (In Russian).

4. Shakirov N.S., Bikmukhametov Z.M., Khisamova F.F., Safiollin F.N. Change in fertility indicators of gray forest soil and crop productivity in the crop rotation link when applying fretilizers. Vestnik Kazanskogo gosudarstvennogo agrarnogo universiteta = Vestnik of Kazan State Agrarian University, 2020, vol. 15, no. 2 (58), pp. 59–65. (In Russian).

5. Nesterenko V.A., Lapushkin V.M. Influence of mobile phosphorus content in soddy-podzolic soil and doses of nitrogen fertilizers on formation of yield and quality of spring wheat. Agrokhimicheskii vestnik = Agrochemical Herald, 2021, no. 1, pp. 38–42. (In Russian). DOI: 10.24412/1029-2551-2021-1-007.

6. Kotchenko S.G. Monitoring of the fertility state of arable lands in the Tyumen region. Dostizheniya nauki i tekhniki APK = Achievements of Science and Technology of AIC, 2021, vol. 35, no. 9, pp. 11–14. (In Russian). DOI: 10.53859/02352451-2021-35-9-11.

7. Nedbaev V.N., Zhilyakov D.I. Dynamics of the content of mobile phosphorus compounds in zonal soils of the Kursk region and yield of agricultural crops. Vestnik Kurskoi gosudarstvennoi selskokhozyaistvennoi akademii = Bulletin of the Kursk State Agricultural Academy, 2022, no. 5. pp. 41–47. (In Russian).

8. Tyutyunov S.I., Nikitin V.V., Solovichenko V.D., Karabutov V.P. Diagnostic bases of optimization of mineral nutrition of crops of grain-vitreous crop rotation on typical chernozem. Agrokhimiya = Agricultural Chemistry, 2019, no. 8, pp. 77–82. (In Russian). DOI: 1134/S0002188119080118.

9. Averkina S.S. Regional features and evaluation of the methods aimed at labile phosphates determination in the soil of Novosibirsk region. Vestnik NGAU = Bulletin of NSAU, 2019, no. 3 (52), pp. 7–16. (In Russian). DOI: 10.31677/2072-6724-2019-52-3-7-16.

10. Nechaeva T.V. Influence of calibration solutions on the results of available phosphorus measurement in soils. Pochvy i okruzhayushchaya sreda = The Journal of Soils and Environment, 2022. vol. 5, no. 4, pp. 1–9 (In Russian). DOI: 10.31251/pos.v514.187.

11. Zaryab Khan, AftabTabasum, Dost Muhammad, Maria Mussarat, Javaid Hassan Comparative Analisis of Soil Phosphorus Deterrmination Methods and Their Correlation with Plant Phosphorus in Standing Wheat Crops. Turksh Journal of Agriculture – Food Science and Technology, 2024, no. 12 (4), pp. 568–574. DOI: 10.24925/turjaf.v12i4.568-574.6393.

12. Сhristian Morel, Daniel Plenet, Alain Mollier. Calibration оf maize phosphorus status by plant-avialable soil P assessed by common and process-based approaches. Is it soil-specifie or not? European Journal of Agronomu, 122, 2021, no. 1–12, p. 126174.

13. Danilova A.A., Tkachenko G.I., Kolbin S.A. Soil phosphorus pool and the living phase response to phosphorus supplementation. Vestnik Omskogo gosudarstvennogo agrarnogo universiteta = Vestnik of Omsk SAU, 2022, no. 3 (47), pp. 33–40. (In Russian). DOI: 10.48136/2222-0364-2022-3.