STUDIES ON NUTRIENT UPTAKE BY PIGEON PEA AS INFLUENCED BY INTERCROPPING AND P FERTILIZATION

Abstract

A study was carried out at the Tamil Nadu Agricultural University, Coimbatore (during kharif, 1977) to find out the effect of intercropping and P fertilization on the nutrient depletion pattern in rainfed pigeonpea, Pigeonpea as a base crop was raised in solid stand and with inter crops viz., sorghum, pearlmillet, blackgram and coriander under three levels of P fertilization (0, 25 and 50 kg P,O,/ha). Intercropping did not interfere with the total nutrient depletion of pigeonpea per unit area very much. Pigeonpea-pearlmillet intercropping system was found disadvantageous because of mu- tual competition Uptake of N, P and K by pigeonpes was more when intercropped with blackgram. The available N in the post-harvest soil was also moro in this com bination. P fertilization influenced the NPK uptake by pigeonpes. Nutrient uptake was sig nificantly improved by application of 25 kg P,0./ha ovor no P in all the intercropping systems. This suggests that P application is essential for proper growth and develop. ment of pigeonpea in a medium P soil.

DOI

https://doi.org/10.29321/MAJ.10.A02553

Pages

791 - 794

Creative Commons

Copyright

© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

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