. Cyclopedia of farm crops. Farm produce; Agriculture. PEA PEA 513 moisture. The pea crop is made. by the middle of July and does not draw on the moisture supply in the orchard after that date, when the moisture is needed by the apple trees. [See page 506, Vol. I.] Seed-peas.—When produced for the supply of the seed trade, peas are usually grown on contract, the jobber supplying the planting stock and agreeing to buy the crop at a specified price. The peas are received at the seed houses and pre- pared for market by recleaning and hand-picking in the same way that beans are prepared. Split pea
. Cyclopedia of farm crops. Farm produce; Agriculture. PEA PEA 513 moisture. The pea crop is made. by the middle of July and does not draw on the moisture supply in the orchard after that date, when the moisture is needed by the apple trees. [See page 506, Vol. I.] Seed-peas.—When produced for the supply of the seed trade, peas are usually grown on contract, the jobber supplying the planting stock and agreeing to buy the crop at a specified price. The peas are received at the seed houses and pre- pared for market by recleaning and hand-picking in the same way that beans are prepared. Split peas.— About half a million bushels of smooth or Canada lield-peas are annually required for the produc- tion of "split peas," which are used principally in making soups. The hulls, which are removed in the pro- cess of manufacture, and the refuse peas are ground together to make "pea meal," which is sold as a stock- food. Canning. — The canning factories use the garden pea grown as a field crop, not the type known as field-pea. [The subject of canning is discussed in Part II of this volume.] The pods and vines from canning factories are often ensiled, or fed green. Enemies. Weeds.—The pea crop, as most others, encoun- ters a number of rather serious obstructions to growth. As a rule, it is not seriously interfered with by weeds, as it starts quickly and makes rapid progress, thus smothering out most weed competi- tion. If, however, the land is infested with the annual wild mustard (Brassiea Sinapislrum), the crop may be seriously injured. Fortunately this weed may be destroyed when a few inches high by spraying with a solution of about twelve pounds of copper sulfate in fifty gallons of water, while the peas are not materially injured by the solution. This treatment is most effective if the spraying is performed on a bright, hot day. Young mustard plants are much more easily destroyed than approaching bloom. An ordinary four- or potato
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