Which of the following are essential factors that need to be considered to decide when and how much a cultivated field needs to be irrigated? P. the crop to be sowed.
Q. the number of weeds in the field.
R. the nature of the soil S. the average amount of rainfall the region receives.
T. the type of tractors used in the field.
1 only P, R and S
2 only P. Q and R
3 only P. Q and S
4 All - P. Q. R, S and

not sure if this what   you'r looking for would be percent composition

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.

the  different  of  these  two  are  that  they  differently  handle  their  team.

an  expressive  leader  focuses  on  the  task  at  hand  and  make  sures  that  their  goal  is  achieved.  they  accurately  finish  the  task.  an  instrumental  leader  on  the  other  hand  works  on  the  unity  of  the  group,  they  care  more  about  their  employees.  all  the  while  creating  a  good  environment.