POTATO.
Boiled potatoes, mixed up with steamed cornstalks, shorts, &c., make an excellent compound for fattening cattle; yet, at the present time, they are too expensive for general use. We hope, however, that ere long our farmers will take hold of this subject in good earnest,—we allude to the causes of potato rot,—and restore this valuable article of food to its original worth. A few remarks on this subject seem to be called for.
Remarks on the Potato Rot.
Where are the fine, mealy, substantial "apples of the earth" gone?—and Echo answers, "Where?" They are not to be found at the present day. The farmers have suffered great losses, in some instances by a partial, and in others by a total, failure of their crops. Numberless experiments have been tried to prevent this great national calamity, yet they have all proved abortive, for the simple reason that we have been only treating the symptoms, while the disease has taken a firmer hold, and hurried our subjects to a premature decay. Different theories have been suggested with a view of explaining the causes of the potato rot, none of which are satisfactory. We have the "fungous theory," "insect theory," "moisture theory," "theory of degeneration," and "the chemical theory of defective elements." In relation to the "fungous theory" we observe that fungi inhabit decaying organic bodies. They are considered to be a common pest to all kinds of plants, like parasites, living at the expense of those plants. We do not expect to find fungi in good healthy vegetables, at least while they possess a high grade of vital action. It is only when morbid deposits and chemical agencies overcome the integrity or vital affinity of the vegetable that fungous growth commences.
In the fungous development, the living parts of the vegetable are not always destroyed; yet these fungi obstruct vital action by their deposits or accumulations; hence the small vessels that lead from centre to surface are partly paralyzed, and the power peculiar to all vegetables of throwing off useless or excrementitious matter is intercepted. This is not all. The process of imperceptible elimination, which might restore the balance of power in any thing like a vigorous plant, is thus impaired.
Now, it is evident that the fungi are not the cause of the potato rot; they are only the mere effects, the symptoms: preceding these were other manifestations of disorder, and these manifestations, in their different grades, might with equal propriety be charged as causes of the potato rot. The deterioration of the potato has been going on in a gradual manner for a long time. A mild form of disease has existed for a number of years, making such imperceptible change that it has escaped the observation of many until late years, when the article became so unpalatable that our attention has been called to it in good earnest; and by the aid of the microscope we have discovered the fungi. Has this discovery benefited the agriculturist? Not a particle.
The theory of degeneration, without doubt, will assist us to explain the why and wherefore of the potato rot. But this is not all; the community want to know the cause of this degeneracy. We have spent some time in the investigation of this subject, and now give the public, in a condensed form, our opinion of this matter. We may err, but our progress is towards the full discovery of the direct cause, and the ways and means best adapted to prevent this sad calamity. The potato came into existence at a certain period in the history of the world. After its discovery, it was taken from the mother soil, the land of its nativity, planted in different parts of the world, and grew to apparent perfection. Our opinion is, that the transplanting was one of the causes of this degeneracy. It is generally known that indigenous plants do not thrive so well on foreign soil as in their native; for example, the plants of the sunny south cannot be made to flourish here in the same degree of perfection as at the south; they require the genial warmth of the sun's rays, which our northern climates lack. The soil, too, mast be adapted to each particular plant. It is true we do cultivate them by ingenuity and chemical agency; yet they seldom equal the original. Need we ask the farmer if he can, from the soil of New England, produce a St. Michael orange equal to one grown on its native soil? or if a squash will grow in the deserts of Arabia? All vegetables, as well as animals, possess a certain amount of vital power, which enables them to resist, to a certain degree, all encroachments on their healthy operations. The potato, having been deprived, in some measure, of its essential element, lost its reciprocal equilibrium, and has ever since been a prey to whatever destructive agents may be present, whether they exist in the soil or atmosphere. Yet we conceive that its total destruction is dependent on another cause, which has been entirely overlooked; for, in spite of the gradual deterioration alluded to, the potato will, for a number of years, continue to keep up a low form of vitality, and result in something like a potato. In order to comprehend the subject, let us, for a moment, consider the conditions necessary for the germination and perfection of vegetable bodies. We shall then be able to decide as to whether or not we have complied with such conditions. The first condition is, we must have a perfect germ; secondly, a ripe seed; and lastly, nutrimental agents in the sail, composed of carbon, hydrogen, and oxygen.
The potato requires but a small quantity of moisture to develop the germinating principle; for we have every day evidences of its ability to send forth its fibres, even in the open air. Now, the premature development of these fibrous radicles, or roots, debilitates the tuber; in short, we have a sick potato. Is the potato, under such circumstances, a perfect germ? No. If you examine the potato, with its roots and stem, you will find the cutis, or skin, and mucous membrane. This external skin, including that of plant, stalk, leaf, and ball, is to the potato what the skin and lungs are to animals; they, each of them, absorb atmospheric food, and throw off excrementitious matter; the roots and fibres are to the vegetable what the alimentary canal is to the animal. A large portion of the food of vegetables is found in the soil, and enters the vegetable system, through its capillary circulation, by the process of imperceptible elimination and absorption. Now, you must bear in mind that the fibres, stem, and leaves are delicate and tender organs; they are studded with millions of little pores, covered with a membrane of delicate texture, easily lacerated. When these delicate organs are rudely torn off or lacerated, the potato immediately gives evidence of the encroachments of disease; it shrinks, withers, and, although the soil abounds in all that is necessary for its growth and future development, it is not in a fit state to carry on the chemico-vital process. We often take the potato from the soil with a view of preserving it for seed, without any definite knowledge of the exact time of its maturity; as the season arrives for again replanting, the fibres are torn off, and the potato itself is often cut up into two or three pieces; sometimes, however, the smaller potatoes are used for seed. Both practices are open to strong objection. Oftentimes the cut surfaces of the potato are exposed to atmospheric air; evaporation commences, they lose their firm texture, and are more fit for swine than for planting.
The cause of the total destruction may exist in a loss of polarity! We know that all organic and inorganic bodies are subject to the laws of electricity—each has its polarity. Men who are engaged in mining can testify that the stratification of the earth is alternately negative and positive. The hemispheres of the earth are also governed by the same law; for, if you take a magnetic needle and toss it up in this hemisphere, which is negative, the positive end will come to the ground first; but if you pass the magnetic equator, which crosses the common equator in 23° 28', and then toss the needle up, its negative end will fall downwards. Hence we infer that the potato has a polarity, just as man has; and this is the reason of their definite character. Take a bean, and destroy its polarity by cutting it into several pieces, as you do the potato, and all the men on earth cannot make it germinate and grow to perfection. It will die just as a man will, if you destroy the polarity of his brain by wounding it.
Take an egg, and destroy its polarity by making a small puncture through it, and you can never get a chicken from it. A man or an animal will die of locked-jaw, caused by a splinter entering the living organism; and why? Because their electrical equilibrium, or their polarity is destroyed. Some of our readers may desire to know how we can prove that electricity plays a part in the germination and growth of animals and vegetables. In verification of it, we will give a few examples. A dish of salad may, by the aid of electricity, be raised in an hour. Hens' eggs can be hatched by a similar process in a few hours, which would require many days by animal heat. By the aid of electricity, water, which consists of oxygen and hydrogen, may be decomposed, and its elements set free. The poles of a galvanic battery may be applied to a dead body, and that body made to imitate the functions of life.
And lastly, it is through the medium of electrical attraction which bodies have for each other, that all the chemical compositions and decompositions depend. Bodies must be in opposite states of electricity in order to produce a result. Now, if the polarity of the potato is destroyed in the manner we have just alluded to, or should it be destroyed by coming in contact with the blade of a knife, the latter conducting off the electrical current, or by any other means, it must deteriorate. We are told that "the potato has several germinating points, and that a part will grow just as well as the whole." Such reasoning will not stand the test of common experience.
For example: the Almighty has endowed man with various faculties, and the perfection of his organism depends on these faculties, as a whole. Now, he may lose a leg, and yet be capable of performing the ordinary duties of life; but this does not prove that he might not perform them much better with both legs. So in reference to the potato. The fact of its ability to reproduce its kind from a small portion of the whole—a mere bud—should not satisfy us that a perfect germ is unnecessary. Then the question arises, How shall we restore the original identity of this valuable article of food?
We have, in the early part of this work, recommended the farmers to study the laws of vegetable physiology. This will furnish them with the right kind of information. We would, however, suggest to those who are desirous of making experiments, to comply with the conditions already alluded to, viz., plant a perfect germ, by which means the potato may be improved. Yet, in order to restore its identity, we must commence by germinating from the seed, and plant that on soil abounding in the constituents necessary for its development. Elevated land abounding in small stones, and hill sides facing the south, are the best situations. Potatoes should never be cultivated on the same spot for two successive years.
In relation to the insect theory, we would observe, that it throws no light on the cause of the potato rot; for, in its gradual decay, that vegetable undergoes various changes; the particles of which it is composed assume new forms, and enter into new combinations; its elementary substances are separated, giving birth to new compounds, some of which result in an insect. We all know that animal and vegetable bodies may remain in a state of putrefaction in water, and be dissolved in the dust; yet some of their original atoms appear in a new system. Hence the insect theory has no more to do with the cause of the potato rot than the fungus.