questions:  query regarding  grass production   for 1 1 no  dairy cow , the area measuring 1 bigha of land  
 answers:  told him to cultivate napier , maize , para , guinea  in the grass land , measuring 1 bigha of land , generally minimum 8-10 kg green grass is require for a milh cow , in 1 month  totel grass requirement  will be [8*30]240 kg . thus for 2 & 1/2 month totel grass requirement will be[ 240* 2.5] 600 kg [ 1 st cutting can be done 2- 2 1/2 month of seedling ] after 1 st cutting to 2 nd cutting the gap should be 2-2.5 month , if repeatition method of cutting is followed