Farmers get better returns on Cotton with Polysulphate

21

Yield Increase
Seed cotton benefitted from Polysulphate fertilizer application with heavier bolls, and more bolls per plant compared to the farmers usual practice, resulting in an overall yield increase of 21%.

Maharashtra, India
2020

Trail

21

Yield Increase

Key Conclusions

Trial shows how Polysulphate fertilizer increases cotton yield by up to 21%, and increases the net return for the farmer, with an average benefit:cost ratio of 7.7.

Objective

To evaluate the effect of Polysulphate on the yield, and important yield parameters, of cotton (Gossypium hirsutum) when compared to the farmers’ common practice in Maharashtra, India.

Trial Details

Trial station

Maharashtra, India

Product

Standard Polysulphate

Assessments

Yield, sympodial branches/plant, bolls/plant, and boll weight

Treatments

Nine unreplicated field trials were carried out on 0.4 ha plots in Ahmednagar, Aurangabad, and Beed districts of Maharashtra, with control plots of the same size where the farmers’ common fertilizer practice was used.

  • The control plots received a basal application of 125 kg/ha DAP and 125 kg/ha MOP, followed by 225 kg/ha of urea top-dressed one month after sowing in two split applications at 15-20-day intervals.
  • The Polysulphate-treated plots received the same fertilizer applications as the control, with an additional basal application of 125 kg/ha of standard Polysulphate.

 

DAPMOPureaPolysulphate
kg/hakg/hakg/hakg/ha
Control125125225-
Polysulphate125125225125

Treatments

Nine unreplicated field trials were carried out on 0.4 ha plots in Ahmednagar, Aurangabad, and Beed districts of Maharashtra, with control plots of the same size where the farmers’ common fertilizer practice was used.

  • The control plots received a basal application of 125 kg/ha DAP and 125 kg/ha MOP, followed by 225 kg/ha of urea top-dressed one month after sowing in two split applications at 15-20-day intervals.
  • The Polysulphate-treated plots received the same fertilizer applications as the control, with an additional basal application of 125 kg/ha of standard Polysulphate.

 

DAPMOPureaPolysulphate
kg/hakg/hakg/hakg/ha
Control125125225-
Polysulphate125125225125

Results

  • Seed cotton yield increased by 21% in the Polysulphate treated plots across the locations, with an average yield gain of 5.4 q/ha.
  • Yield contributing traits, namely sympodial branches, and bolls/plant, increased by an average of 12% and 31% respectively across the locations in Polysulphate plots compared to the controls.
  • Average boll weight increased by 1.5 g in Polysulphate plots compared to the controls.
  • Polysulphate application increased the net return and was very profitable in all locations, with an average benefit:cost ratio of 7.7.

 

Polysulphate fertilizer increased seed cotton yield by 21% compared to the control.

 

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