Farmers of Forty Centuries; Or, Permanent Agriculture in China, Korea, and Japan

by F. H. King

The canalization of fifty thousand square miles of our Gulf and Atlantic coastal plain, and the utilization on the fields of the silts and organic matter, together with the water, would mean turning to account a vast tonnage of plant food which is now wasting into the sea, and a correspondingly great increase of crop yield. There ought, and it would seem there must some time be provided a way for sending to the sandy plains of Florida, and to the sandy lands between there and the Mississippi, large volumes of the rich silt and organic matter from this and other rivers, aside from that which should be applied systematically to building above flood plain the lands of the delta which are subject to overflow or are too low to permit adequate drainage.

It may appear to some that the application of such large volumes of water to fields, especially in countries of heavy rainfall, must result in great loss of plant food through leaching and surface drainage. But under the remarkable practices of these three nations this is certainly not the case and it is highly important that our people should understand and appreciate the principles which underlie the practices they have almost uniformly adopted on the areas devoted to rice irrigation. In the first place, their paddy fields are under-drained so that most of the water either leaves the soil through the crop, by surface evaporation, or it percolates through the subsoil into shallow drains. When water is passed directly from one rice paddy to another it is usually permitted some time after fertilization, when both soil and crop have had time to appropriate or fix the soluble plant food substances. Besides this, water is not turned upon the fields until the time for transplanting the rice, when the plants are already provided with a strong root system and are capable of at once appropriating any soluble plant food which may develop about their roots or be carried downward over them.

Although the drains are of the surface type and but eighteen inches to three feet in depth, they are sufficiently numerous and close so that, although the soil is continuously nearly filled with water, there is a steady percolation of the fresh, fully aerated water carrying an abundance of oxygen into the soil to meet the needs of the roots, so that watermelons, egg plants, musk melons and taro are grown in the rotations on the small paddies among the irrigated rice after the manner seen in the illustrations. In Fig. 153 each double row of egg plants is separated from the next by a narrow shallow trench which connects with a head drain and in which water was standing within fourteen inches of the surface. The same was true in the case of the watermelons seen in Fig. 154, where the vines are growing on a thick layer of straw mulch which holds them from the moist soil and acts to conserve water by diminishing evaporation and, through decay from the summer rains and leaching, serves as fertilizer for the crop. In Fig. 155 the view is along a pathway separating two head ditches between areas in watermelons and taro, carrying the drainage waters from the several furrows into the main ditches. Although the soil appeared wet the plants were vigorous and healthy, seeming in no way to suffer from insufficient drainage.

These people have, therefore, given effective attention to the matter of drainage as well as irrigation and are looking after possible losses of plant food, as well as ways of supplying it. It is not alone where rice is grown that cultural methods are made to conserve soluble plant food and to reduce its loss from the field, for very often, where flooding is not practiced, small fields and beds, made quite level, are surrounded by low raised borders which permit not only the whole of any rain to be retained upon the field when so desired, but it is completely distributed over it, thus causing the whole soil to be uniformly charged with moisture and preventing washing from one portion of the field to another. Such provisions are shown in Figs. 133 and 138.

Extensive as is the acreage of irrigated rice in China, Korea and Japan, nearly every spear is transplanted; the largest and best crop possible, rather than the least labor and trouble, as is so often the case with us, determining their methods and practices. We first saw the fitting of the rice nursery beds at Canton and again near Kashing in Chekiang province on the farm of Mrs. Wu, whose homestead is seen in Fig. 156. She had come with her husband from Ningpo after the ravages of the Taiping rebellion had swept from two provinces alone twenty millions of people and settled on a small area of then vacated land. As they prospered they added to their holding by purchase until about twenty-five acres were acquired, an area about ten times that possessed by the usual prosperous family in China. The widow was managing her place, one of her sons, although married, being still in school, the daughter-in-law living with her mother-in-law and helping in the home. Her field help during the summer consisted of seven laborers and she kept four cows for the plowing and pumping of water for irrigation. The wages of the men were at the rate of $24, Mexican, for five summer months, together with their meals which were four each day. The cash outlay for the seven men was thus $14.45 of our currency per month. Ten years before, such labor had been $30 per year, as compared with $50 at the time of our visit, or $12.90 and $21.50 of our currency, respectively.

Her usual yields of rice were two piculs per mow, or twenty-six and two-thirds bushels per acre, and a wheat crop yielding half this amount, or some other, was taken from part of the land the same season, one fertilization answering for the two crops. She stated that her annual expense for fertilizers purchased was usually about $60, or $25.80 of our currency. The homestead of Mrs. Wu, Fig. 156, consists of a compound in the form of a large quadrangle surrounding a court closed on the south by a solid wall eight feet high. The structure is of earth brick with the roof thatched with rice straw.

Our first visit here was April 19th. The nursery rice beds had been planted four days, sowing seed at the rate of twenty bushels per acre. The soil had been very carefully prepared and highly fertilized, the last treatment being a dressing of plant ashes so incompletely burned as to leave the surface coal black. The seed, scattered directly upon the surface, almost completely covered it and had been gently beaten barely into the dressing of ashes, using a wide, flat-bottom basket for the purpose. Each evening, if the night was likely to be cool, water was pumped over the bed, to be withdrawn the next day, if warm and sunny, permitting the warmth to be absorbed by the black surface, and a fresh supply of air to be drawn into the soil.

Nearly a month later, May 14th, a second visit was made to this farm and one of the nursery beds of rice, as it then appeared, is seen in Fig. 159, the plants being about eight inches high and nearing the stage for transplanting. The field beyond the bed had already been partly flooded and plowed, turning under "Chinese clover" to ferment as green manure, preparatory for the rice transplanting. On the opposite side of the bed and in front of the residence, Fig. 156, flooding was in progress in the furrows between the ridges formed after the previous crop of rice was harvested and upon which the crop of clover for green manure was grown. Immediately at one end of the two series of nursery beds, one of which is seen in Fig. 159, was the pumping plant seen in Fig. 157, under a thatched shelter, with its two pumps installed at the end of a water channel leading from the canal. One of these wooden pump powers, with the blindfolded cow attached, is reproduced in Fig. 158 and just beyond the animal's head may be seen the long handle dipper to which reference has been made, used for collecting excreta.

More than a month is saved for maturing and harvesting winter and early spring crops, or in fitting the fields for rice, by this planting in nursery beds. The irrigation period for most of the land is cut short a like amount, saving in both water and time. It is cheaper and easier to highly fertilize and prepare a small area for the nursery, while at the same time much stronger and more uniform plants are secured than would be possible by sowing in the field. The labor of weeding and caring for the plants in the nursery is far less than would be required in the field. It would be practically impossible to fit the entire rice areas as early in the season as the nursery beds are fitted, for the green manure is not yet grown and time is required for composting or for decaying, if plowed under directly. The rice plants in the nursery are carried to a stage when they are strong feeders and when set into the newly prepared, fertilized, clean soil of the field they are ready to feed strongly under these most favorable conditions Both time and strength of plant are thus gained and these people are following what would appear to be the best possible practices under their condition of small holdings and dense population.

With our broad fields, our machinery and few people, their system appears to us crude and impossible, but cut our holdings to the size of theirs and the same stroke makes our machinery, even our plows, still more impossible, and so the more one studies the environment of these people, thus far unavoidable, their numbers, what they have done and are doing, against what odds they have succeeded, the more difficult it becomes to see what course might have been better.