INFLUENCE OF FERTILIZERS AND LIMING ON THE AGROCHEMICAL PARAMETERS OF SOIL AND LOSSES OF PLANT NUTRIENTS THROUGH DRAIN WATER
DOI:
https://doi.org/10.17770/etr2007vol1.1745Keywords:
mineral fertilizers, liming, field crops, plant nutrients, drain waterAbstract
The aim of the research was to study the influence of mineral fertilizers and liming on yields of field crops and agrochemical parameters of soil and loss of plant nutrients through drain water. Since 1982, long-term field trials were carried out under crop succession with long-term grass, grain (rye, triticale, spring wheat, barley, oat), potatoes and rape. Annually from soil thought drains were leached about 3.0 - 21.9 kg ha-1 nitrogen, 0.1 - 0.5 kg ha'1 and 0.6 -1.7 kg ha-1 potassium. Application of P0 and P30 led to the further decrease of phosphorus content as fa r as 0-6 mg kg especially in limed soil. Significant increase of phosphorus content was observed only using phosphorus rate P90. Positive NPK balance in limed trial plots was achieved with annual inputs of 90 kg ha-1 N, 100 kg ha-1 P20 s and 90 Kg ha-1 K20.
Downloads
References
Štikāns, J. (1992) Augšņu kaļķošana un tās efektivitāte. Rīga, 192 Ipp
Štikāns, J., Kažociņš, V., Līpenīte, I. (1996) Augu barības vielu izskalošanās meliorētās augsnēs. Jelgava: LLU, 29 lpp.
Štikāns, J., Kažociņš, V., Līpenīte, I. (1996) Impact of fertilizers on nutrient losses through tile drains Proceedings of the Latvian Academy of sciences. 1996.- v.50.- N 2. pp.85-89.
Štikāns, J., Vigovskis, J., Jermušs, A., Līpenīte, I. (2000) Impact of fertilises and lime on soil fertilitiy and crop yield at the drainage field trials at Skriveri. Proceedings of Interational Scientific Conference “The results of long-term field experiments inBaltic States”. Jelgava, pp.155-163
Vigovskis, J., Līpenīte, I. (1999) Slāpekļa bilance eksperimentālajā lauka drenāžas stacionārā Skrīveros. Agronomijas Vēstis. Jelgava: LLU, 101-106 lpp.
Vigovskis, J., Jermušs, A. (2000). Balance of phosphorus in soil at long application of fertilisers and liming/ Potassium and phosphorus: fertilisation effect on soil and crops. Proceedings of the Regional IPI Workshop October 23.- 24., 2000, Lithuania pp. 81- 84
Кажоциньш, В. (1990) Взаимосвязь урожайнотьи полевых культур изменения агрохимических свойств и вымывания элементов питания растений водой дренажного стока на осушенной дерного- подзолистой глееватой суглинистой почве в зависимости от норм извести и минеральных удобрений. Минск, 1990.
