(a) (i) The crop which is being planted in the picture is ‘Rice’ The method used for sowing is ‘transplantation’ method Though it is a laborious method but it increases the yield by 45%. 

(ii) Mean annual temperature of 24°C with a range of 22°C to 32°C. Rainfall required : 150 cm to 300 cm, but much less is required if irrigation is available. 

(b) Gujarat leads in cotton cultivation. 

1. Frost is injurious to the crop. 

2. There should be no rains at the time of ripening of cotton balls. 

(c) (i) (a) Sett Method: Cutting of two or three joints taken from a healthy plant and planted horizontally, in furrows then piled with fertilized soil. 

(b) Ratoon Cropping: The Cane is cut close to the ground where the sugar content is concentrated. After the crop has been cut the stem begins to grow again and gives a new crop. 

(ii) A lot of labour is required for sugarcane cultivation from the time of sowing. Such as before sowing ground is prepared, furrows are made, cuttings (setts) are made by the sugarcane, besides this pesticides and insecticides are sprayed twice or thrice, manuring is also done two or three times. At the time of harvest also lot of manual work is done. Thus a lot of labour is required for sugarcane cultivation. 

(iii) After harvesting cane it is processed within 24 hours If delayed the sucrose content starts decreasing. If the sugar mills are close to the fields, without wasting time in transportation sugarcane can be reached easily. Hence the sugar mills must be near the sugarcane fields. 

(d) (i) Tea bushes are pruned at regular interval as it helps in growing more new leaves and also the height of the plant does not increase, which helps in picking leaves. (ii) Tapping of rubber tree is usually done in the morning hours as latex flows freely at this time, it is also to avoid heat after 12 o’clock and the convectional rain due to which the latex may be diluted. 

(iii) Oil cake is a useful residue because it can he used as manure and also can be used as fodder for cattle.