What is the advantage of selecting seeds of crops with wider adaptability for agriculture?

How do Sunhemp or guar help in crop production management? How is it better than fertilizers?

What are those crops called which are grown in the winter season?

Write three advantages of crops growing in shorter duration of time compared to those growing in longer duration of time.

Balwinder was a small farmer. As his field was rain-fed,he could not take the risk of growing specialized crops. He used to mix the seeds of two crops and sow them in the field. Kaku,his son who passed class $IX$,suggested growing two or more crops simultaneously in a definite pattern. Balwinder followed this,and the productivity per unit area increased.
$(i)$ Name the cropping pattern which Balwinder used earlier and the one suggested by Kaku.
$(ii)$ Write two advantages of practicing the pattern suggested by Kaku.
$(iii)$ Write two values displayed by Kaku.

$(a)$ $A$ farmer wants to harvest more than two varieties at a time from his crop field. He has no idea about the cropping patterns. Suggest one method to get the desired result. Also,state three advantages of this cropping pattern.
$(b)$ Name any two fodder crops.