REGIONAL FEATURES AND EVALUATION OF THE METHODS AIMED AT LABILE PHOSPHATES DETERMINATION IN THE SOIL OF NOVOSIBIRSK REGION

The paper summarizes the results of many-year research on applying the existing methods for determining labile phosphates aimed at evaluation of the phosphorus fertilizers effect. The standard methods of phosphorus determination according to Truog and Chirikov suggests extracting a large amount of hard-to-reach forms from the soil. The existing scales for determining the soil needs inside this element for crops do not allow to evaluate objectively the fertility of black soil in the Novosibirsk Region. The application of buffer mixtures, acid and salt extractants for the diagnosis of phosphorus nutrition of plants is discussed. The authors suggest to explore black soil according to the Nikolov method and the LAC- method. They characterize the actual reserves of available phosphorus in the soil. During the growing season, it is necessary to carry out operational diagnostics using Karpinsky–Zamyatina method. The method determines the degree of transition of phosphorus to the soil fluid and the presence of residual phosphates. The amount of energy required to extract phosphorus from soil compounds is suggested to be determined by the Scofield method. Its value depends on the absorption properties of the soil and is regional in nature. For all the methods studied the new scales for the supply of black soil in the Novosibirsk Region were proposed. These scales give opportunity  to find out the appropriateness of applying phosphorus fertilizers and give a correct assessment during the study of the diagnosis of phosphorus nutrition of plants.

labile phosphorus, methods, scales, phosphate fertilizers, diagnostics, black soil, fertility, standard

1. Chumachenko I. N. Aspekty issledovanija fosfornogo rezhima optimizacii jeffektivnosti fosfornyh udobrenij (Aspects of the study of the phosphorus mode of optimizing the effectiveness of phosphorus fertilizers), Proceeding of the International Symposium, Moscow, 1999, pp. 23–26. (In Russ.)

2. Kuz’mich M. A. Ocenka metodov opredelenija podvizhnyh fosfatov, Agrohimicheskij vestnik, 2002, No. 2, pp. 28–30. (In Russ.)

3. Sychev V. G., Muzykantov P. D., Popova R. N. Metody ocenki pokazatelej fosfatnogo sostojanija pochv Rossii i puti ih sovershenstvovanija (Methods for assessing indicators of the phosphate state of soils in Russia and ways to improve them), Proceeding of the International Symposium, Moscow, 1999, pp. 10–22. (In Russ.)

4. Ginzburg K. E. Agrohimicheskie metody issledovanija pochv (Agrochemical soil research methods), Moscow, Nauka, 1975, 187p.

5. Averkina S. S. Sravnitel’naja ocenka metodov opredelenija fosfora v chernozjomah Priob’ja Novosibirskoj oblasti v svjazi s primeneniem udobrenij (Comparative evaluation of methods for the determination of phosphorus in chernozems of the Ob region of the Novosibirsk region in connection with the use of fertilizers), Extended abstract of candidate’s thesis, Novosibirsk, 1971, 25 p.

6. Averkina S. S. Metody opredelenija podvizhnyh fosfatov na chernozjomah Sibiri (Methods for the determination of mobile phosphates on chernozems of Siberia), Lap Lambert Akademic Pablishing, 2012, 92 p.

7. Averkina S. S. Opredelenie podvizhnyh fosfatov v pochvah Novosibirskoj oblasti, Plodorodie pochv i pitanie rastenij. Sb. nauch. tr.SibNIIZhim, 1986, pp. 85–89. (In Russ.)

8. Dospehov B. A. Metodika opytnogo dela (Experimental Technique), Moscow, Kolos, 1968, 352 p.

9. Stepanov M. I., Efimova G. I. Ocenka plodorodija pahotnyh pochv Novosibirskoj oblasti, Sibirskij vestnik s. h. nauki, 2001, No. 5–6, pp. 13–18. (In Russ.)

10. Antipina L.P Diagnostika pochvennogo pitanija fosforom pod zernovye kul’tury v Zapadnoj Sibiri, Primenenie fosfornyh udobrenij, Nauch. – tehnich. bjul., Novosibirsk, SIBNIIZhim, 1989, No. 1, pp. 3–9 (In Russ.)

11. Antipina L. P., Malygina L. P., Juzhakov A. I. Optimizacija fosfatnogo rezhima pochv Novosibirskoj oblasti (Optimization of the phosphate regime of soils in the Novosibirsk Region) Metod. rekomendacii, VASHNIL SibNIIZhim, Novosibirsk, 1990, 22 p.

12. Antipina L. P., Pashkovich N. K., Averkina S. S. Nauchnoe obosnovanie raspredelenija fosfornyh udobrenij po Novosibirskoj oblasti (Scientific substantiation of the distribution of phosphate fertilizers in the Novosibirsk region), Rekomendacii: VASHNIL SibNIIZhim, Novosibirsk, 1986, 31 p.

13. Chagina E. G., Berhin Ju.I. Hacevich A. I. Izmenenie plodorodija pochv pri intensivnom zemledelii (Change in soil fertility with intensive farming), Novosibirsk, Nauka SO RAN, 1986, 56 p.

14. Berhin Ju.I., Chagina E. G. Odnovremennoe opredelenie azota nitratov i fosfora v solevoj vytjazhke, Agrohimija, No. 1, 1983, pp. 119–121. (In Russ.)

15. Berhin Ju.I., Chagina E. G. Jancen E. D. Pochvenno-agrohimicheskie problemy intensifikacii zemledelija, Sib. Sb. nauch. tr. VASHNIL SibNIIZhim, Novosibirsk, 1989, pp. 128–137. (In Russ.)

16. Puhovskij A. V. Modelirovanie mobilizacionnyh processov v pochve, Agrohimicheskij vestnik, 2002, No. 6, pp.12–13. (In Russ.)

17. Puhovskij A. V. Jekspressionnyj metod opredelenija stepeni podvizhnosti pochvennyh fosfatov, Agrohimicheskij vestnik, 2000, No. 6, pp. 32–34. (In Russ.)

18. Mineev V.G, Sychev V.G, Emel’janchik O. A. Praktikum po agrohimii (Workshop on Agricultural Chemistry), Moscow, 2001, 661 p.