# Farm Machinery Questions and Answers – Sowing Equipments – Rice Transplanter

This set of Farm Machinery Multiple Choice Questions & Answers (MCQs) focuses on “Sowing Equipments – Rice Transplanter”.

1. At what height should the transplanting be done in paddy?
a) 5-10 cm
b) 15-20 cm
c) 45-50 cm
d) 30-35 cm

Explanation: For paddy, one should do the transplantation when they are at 4-5 leaf stage which is approximately about 15-20 cm height. We should not delay beyond this otherwise it leads to poor tillering i.e., early flower of the main tillers which will reduce the overall yield of the crop.

2. What should be the spacing of paddy in the sub-normal conditions?
a) 15*10 cm2
b) 24*12 cm2
c) 34*24 cm2
d) 8*12 cm2

Explanation: Under good management and adequate nitrogen levels, the optimum spacing should be around 20*10 cm2. With excellent cultural practices, the spacing may be slightly wider, say 20*15 cm2 but under sub normal conditions, the spacing should be slightly narrower i.e. 15*10 cm2.

3. Which geometry has smothering effect on weeds?
a) Planting
b) Triangular
c) Circular
d) Square

Explanation: Planting geometry of 15*15 cm to be maintained in organic rice cultivation so that 1 mm2 area has about 50 hills. Square geometry has smothering effect on weeds.

4. How many seedlings per hill is recommended to transplant?
a) 6-7
b) 7-8
c) 2-3
d) 5-6

Explanation: One should do transplanting of two to three seedlings per hill under normal conditions. If we use more seedlings, it will cost more but will not give the extra benefit as compared to the extra cost.

5. What should be the transplanting depth of paddy?
a) 2-3 cm
b) 4-5 cm
c) 8-9 cm
d) 6-7 cm

Explanation: In case of shallow planting, the tiller buds which are formed at the basal node area are suppressed in the soil. Hence, the transplantation depth of the paddy seedlings should be 2-3 cm only.
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6. In which country the rice trans planters were developed?
a) India
b) Pakistan
c) China
d) Japan

Explanation: During late 19th century, an attempt was made to mechanize the rice trans plantation system. However, Rice trans plantation system was developed in Japan in 1960s and it evolved and progressed at a rapid pace during 1970s and 1980s.

7. Which part of the rice trans planter acts like a shed roof to the seedlings?
a) Seedling tray
b) Motor
c) Running gear
d) Gear box

Explanation: A rice trans planter consists of seedling tray, the seedling tray shifter and pickup forks. The seedlings are fed to the seedlings tray which acts like a shed roof for the seedlings.

8. The accuracy of the planter does not depend on ________
a) Speed of seed plate
b) Shape of hopper bottom
c) Uniformity of seed size
d) Weather

Explanation: The spacing of seeds or hills in the row is determined by the ratio of linear or peripheral speed of the cells to the forward speed of the planter and by the distance between the cells in the metering unit. The accuracy of the planter depends upon several factors such as: speed of seed plate, shape of hopper bottom, shape and size of cells, uniformity of seed size.

Sanfoundry Global Education & Learning Series – Farm Machinery.