They did not have a zero.
The mean deviation of a set of observations is always zero and so conveys no information whatsoever!
A society that cannot compute fractions and has no concept of "zero" is at an instant disadvantage compared to one that can and does.
no disadvantage
Advantage is the opposite of disadvantage.
In Canada, the Father of Zero Tillage is Jim McCutcheon. But one of the earlier proponents of no-till might have been Masanobu Fukuoka (Japan). Masanobu Fukuoka wrote books and travelled and lectured extensively on his methods of natural farming.
They did not have a zero.
One disadvantage of conservation tillage methods is that it can lead to increased weed pressure, as reduced or no-till practices may not sufficiently disturb the soil to control weeds effectively. This can require additional weed management strategies to be implemented.
Jethro Tull was father of tillage.
Conventional tillage involves intensive soil disturbance through plowing, while conservation tillage aims to minimize soil disturbance and maintain soil structure. Conservation tillage practices, such as no-till or reduced tillage, help to reduce erosion, conserve soil moisture, and improve soil health compared to conventional tillage methods.
The disadvantage is that the mean deviation of a set of data is always zero and so does not provide any useful information.
Minimum tillage involves disturbing the soil to a lesser extent compared to conventional tillage practices, while reduced tillage aims to further minimize soil disturbance and maintain more residue cover on the soil surface. Minimum tillage may involve shallow tillage to create a seedbed, while reduced tillage may only disturb the soil in the planting row or use specialized equipment like no-till drills.
tillage is which you use a tool to make the soil good
Some fields are for grazing , others are for tillage to sow new crops.
The objective of primary tillage is to attain a reasonable depth of soft soil, incorporate crop residues, kill weeds, and to aerate the soil. Secondary tillage is any subsequent tillage, to incorporate fertilizers, reduce the soil to a finer tilth, level the surface, or control weeds.
there is difficulty in the mathematical opperations there is no zero
October 5, 2011