Chapter Eleven: Agriculture and Human Affairs — Summer Field Management, Guarding Against Drought and Flood, and the Rush of Harvest and Planting

I. The Plum Rains End, the Fu Days Begin: The Critical Agricultural Timing of Rain and Heat Coinciding

Around Minor Heat, in the middle and lower reaches of the Yangtze River, the "plum rains" (meiyu) season comes to its end. The plum rains are the prolonged overcast drizzle characteristic of the Jiangnan region in early summer (from Grain in Ear through Minor Heat), named for coinciding with the ripening of plums to a yellow hue. Once the plum rains end, the region enters the high-temperature, low-rainfall period of "dog-day drought" (fuhan). This transition of "the plum rains ending, the fu days beginning" is the most important climatic feature of the Minor Heat season, and it directly determines the core agricultural tasks of this period.

The passage cited earlier from the "Monthly Ordinances" of the Book of Rites, describing the month of late summer as "the earth moist and steaming with heat, and great rains falling from time to time," is precisely a precise description of this climate of rain and heat coinciding, damp heat steaming upward. On one hand there is the "great rains falling from time to time" before the plum rains end (prone to flooding); on the other hand there is the "dog-day drought" after the plum rains end (prone to drought) — this alternation between drought and flood is precisely the greatest peril facing agricultural work at Minor Heat.

II. Guarding Against Drought and Flood: The Dilemma of Water

One of the core agricultural tasks at Minor Heat is "guarding against drought and flood." This is an exceedingly delicate dilemma — one must guard against flood while also guarding against drought.

Before the plum rains end, rainfall is abundant, even excessive, easily causing flood damage that submerges the fields, and so one must promptly drain floodwater and clear the irrigation channels. After the plum rains end, the region enters dog-day drought, with high temperatures and little rain, causing rapid evaporation of moisture; crops (especially rice, then heading and filling its grain) are extremely vulnerable to reduced yield from water shortage, and so one must promptly combat drought and divert water for irrigation.

The "Measuring the Land" (Dudi) chapter of the Guanzi offers a systematic discussion of water management: "One who is skilled at governing the state must first eliminate its five harms... water is one harm, drought is one harm..." One skilled at governing the state must first eliminate five kinds of harm; flood is one harm, drought is one harm. The Guanzi lists flood and drought together among the harms a ruler must first eliminate, which shows how highly the ancients valued the prevention of drought and flood. In this critical season of Minor Heat, when drought and flood alternate, "guarding against drought and flood" is precisely the paramount priority of both agricultural work and governance.

At a still deeper level, this dilemma of "guarding against drought and flood" itself embodies the wisdom of "central harmony" at Minor Heat — too much water (flood) will not do, and too little water (drought) will not do either; the key lies in "the center" — the precisely fitting point of neither flood nor drought. This once again forms a profound echo with Earth virtue's "peaceful and evenly applied, central and correct, without partiality," with the Confucian "doctrine of the mean," and with the spirit of the "minor" of Minor Heat (not yet extreme, centrally harmonious). What the farmer pursues, in struggling against drought and flood in the fields, is precisely that "center" — providing the crops with precisely the right amount of moisture, neither too much nor too little.

III. Summer Field Management: Guarding Amid Growth

At Minor Heat, various crops enter their period of vigorous growth, and agricultural work enters the stage of "summer field management" (xiaguan) — the tending of the fields in summer. The core of this stage is providing careful care to crops that have already been sown and are now growing: tilling and weeding, applying additional fertilizer, guarding against pests and disease, and regulating moisture.

The "Fine Fields" (Fu Tian) ode of the "Lesser Odes" section of the Book of Songs contains the lines: "Now we go to the southern fields, some weeding, some hilling up the earth, and the millet grows luxuriant." Going to the fields in the south, some weeding, some hilling up the soil, the millet growing luxuriantly. "Weeding" (yun) and "hilling up the soil" (zi) are precisely the core tasks of summer field management. In the high heat and abundant rain of high summer, weeds grow wildly and pests and disease breed rapidly; if tilling, weeding, and pest control are not carried out promptly, the growth of the crops will be severely affected.

The spirit of "summer field management" is "guarding amid growth." Unlike spring planting, which is a matter of "initiation," and unlike autumn harvest, which is a matter of "gathering in," it is a quiet, continuous, unassuming form of "guardianship" — guarding the crops as they pass safely through the trials of high summer, laying the foundation for autumn's abundant harvest. This spirit of "guardianship" resonates with Earth virtue's central and harmonious virtue of "assisting the four seasons in their coming and going, nurturing the transformation of all things" — not contending for credit, not rushing ahead, but quietly bearing, tending, and assisting the growth of all things.

IV. The Rush of Harvest and Planting: The Busy Season of the "Double Rush"

Around Minor Heat, in many regions, it is also the busiest season of the "double rush" (shuangqiang) — rushing to harvest the early rice and rushing to plant the late rice. Once the early rice ripens, it must be harvested promptly, or else, struck by torrential rain or high heat, its yield will be reduced or even lost entirely; and once the harvest is rushed, the late rice must immediately be rushed into the ground, or else the proper agricultural timing will be missed, and the late rice will be unable to ripen before autumn's cold arrives.

The character "rush" (qiang) in "double rush" fully conveys the urgency and hardship of agricultural work at Minor Heat. A farmers' proverb says: "Minor Heat, Great Heat — steamed from above, boiled from below." In this scorching heat of being steamed from above and boiled from below, farmers must still labor beneath the blazing sun, rushing to harvest and rushing to plant, racing against the timing of heaven. What great hardship this is! Yet it is precisely this urgency of racing against the timing of heaven that most profoundly embodies agrarian civilization's utmost reverence for "timeliness" — to miss this "moment" is to miss an entire season's, even an entire year's, harvest.

This utmost reverence for agricultural timing is precisely the root from which solar term culture springs. The ancients established the solar term of Minor Heat, finely subdividing the summer heat and marking out the proper season, ultimately in order to guide farmers in precisely grasping the timing of heaven and arranging their agricultural work during this critical season of alternating drought and flood, of rushed harvest and rushed planting. Starting from the most basic needs of agricultural production, the ancients constructed an entire, refined philosophy of time — and Minor Heat is precisely the concrete realization of this philosophy in the sixth month of high summer.