Integrated green manure management for cotton crop

Dear farmers,
Green manures play a very important role in increasing seed cotton yield. Short growing and low water requiring green manure crop like sunn hemp is found to be effective for sustainability of both soil fertility and crop productivity in winter irrigated cotton crop.
For this, the green manure seed is sown at the rate of 15kg/hectare and grown simultaneously with the cotton for a period of 45 days and then buried in the soil before flowering in the furrows and cotton is grown upto maturity. In this process green manure meets one third of the nitrogen (N) requirement of the cotton crop.
          The combined application of farmyard manure (FYM) @ 5 tonne/hectare and in situ green manure of sunn hemp produces highest seed cotton yield. It is approximately equal to recommended dose of NPK (60:13:25kg/ha) in respect of yield and associated traits but soil fertility status under it will be considerably improved in comparison to control or recommended NPK. 
Following are the advantages of green manure in the cotton crop field.
1. Higher growth and fibre yield due to steady nitrogen availability.
2. Efficient utilisation of interspaces before crop competition starts.
3. Weed suppression as it covers top soil and less pest and diseases.
4. Moisture conservation and its efficient utilisation through burying near the root zone.
5. Restoration of soil fertility and higher efficiency in nutrient use.

Comments

  1. Please write upon npk fertilizer management for cotton

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