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RESPONSE OF COWPEA (VIGNA UNGUICULATA) TO PHOSPHOGYPSUM APPLICATION

Jeena Mathew, K.C. Manorama Thampatti

Affiliations

¹Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vellayani, Thiruvananthapuram – 695522, India

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Cite article:- Mathew Jeena, Thampatti Manorama K.C. (2025). RESPONSE OF COWPEA (VIGNA UNGUICULATA) TO PHOSPHOGYPSUM APPLICATION. Legume Research. 30(4): 271 - 274. doi: .

ABSTRACT

Response of cowpea to Phosphogypsum, a by-product of phosphatic fertilizer industry was studied during of rabi season 2002 in Laterite soil (Typic Kandiudult). The field experiment was carried out with 8 treatments including absolute control, recommended package of practices (250 kg ha−1), lime/phosphogypsum @ full lime requirement (full LR) and half LR respectively and combination of both lime and phosphogypsum each at 1/2 and 1/4 LR respectively. Application of amendments either as lime or phosphogypsum has significant effect on yield and yield attributes of cowpea. Phosphogypsum @ full LR gave the highest grain yield (2311 kg ha−1) followed by the combination of lime and phosphogypsum each @ 1/4 LR which was on par with the former.

KEYWORDS

REFERENCES

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