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1) Saline soils - Salt concentration is more and EC of the soil is > 4 dS/m, Exchangeable sodium percentage is < 15, pH is below 8.5 2) Non saline- alkali soil: (sodic soil)- Low soluble salts, EC < 4 dS/m, Exchangeable Na percentage is > 15, pH is > 8.5 3) Saline alkali soils - High concentration of soluble salts with ESP is greater than 15, EC> 4 dS/m, pH is < 8.5
Crop failure due to prolonged dry spells during crop period and less than 75 days of crop growing season are the characteristics of which type of farming?
Which of the following hormones is associated with the reduction of plant growth?
PAR falls in the range of wavelength of
What led to India's self-sufficiency in cotton production in the mid-1970s?
Mean deviation is least when calculated about:
Which of the following is a dicotyledonous weed?
Which of the following crop is biennial in nature?
In delinting process, the ratio of concentrated sulphuric acid to cotton seed is:
Which crop is sensitive both to drought and excessive moisture condition?
The headquarter of Cotton Corporation of India is located at
