ECONOMICS (CBSE/UGC NET)

ECONOMICS

ECONOMIC DEVELOPMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How much crop productivities lessened due to plant diseases?
A
25%
B
10%
C
30%
D
27%
Explanation: 

Detailed explanation-1: -FAO estimates that annually between 20 to 40 percent of global crop production are lost to pests.

Detailed explanation-2: -It has been estimated that of the 36.5% average of total losses, 14.1% are caused by diseases, 10.2% by insects, and 12.2% by weeds. Considering that 14.1% of the crops are lost to plant diseases alone, the total annual worldwide crop loss from plant diseases is about $220 billion.

Detailed explanation-3: -Loss of crops from plant diseases may also result in hunger and starvation, especially in less-developed countries where access to disease-control methods is limited and annual losses of 30 to 50 percent are not uncommon for major crops.

Detailed explanation-4: -Select an area that is representative of the paddock. Do this 5 times to get an average of the crop (A) Count the number of grains in at least 20 heads or pods and average (B) Using Table 1 determine the grain weight for the crop concerned (C) Yield in t/ha = (A × B × C) / 10, 000. 23-Dec-2022

There is 1 question to complete.