“The land must be fertile to a depth of at least nine inches. Beyond that depth the taproot in its search for water will take care of itself.”

Another writer, impressed by practices he regards as reprehensible, enumerates them as follows:

“Don’t sow any nurse crop.

“Don’t sow on freshly plowed land, no matter how carefully prepared.

“Don’t let weeds or grass grow over six inches high without clipping.

“Don’t clip or mow when wet with rain or dew.

“Don’t let alfalfa stand; if turning yellow, cut it.

“Don’t sow old seed.

“Don’t sow less than twenty pounds per acre, one-half each way.

“Don’t sow twenty-five acres at first; sow five.