Which are the three solar terms of agriculture in my country?

Solar terms and agricultural activities have strong regional characteristics due to differences in geographical latitude, altitude, and topography. Solar terms have different agro-meteorological contents for different regions and crops.

1. Beginning of Spring (February 4 or 5): Harrow the dry land to protect moisture. Check potato cellars and vegetable cellars promptly. Build farm tools and construct water conservancy projects. Spring tobacco sowing and seedling raising (mid-February). Sowing spring onions. Spring tomato seedlings are sown in the open field (early February), spring zucchini seedlings are sown (early February), and spring cabbage seedlings are sown in protected areas (early February). Sowing and raising seedlings of cucumbers in small sheds (early February), sowing and raising seedlings of watermelons in small sheds (mid-February). Watermelon planting in solar greenhouse (mid-February). Harvesting of winter and spring leeks in the solar greenhouse ends (mid-February).

2. Rain (February 19th or 20th) The wheat begins to turn green. Harrow and hoe the wheat quickly to increase temperature and preserve moisture. Apply herbicides. Prevent and control wheat sheath blight (the appropriate control period is from the late tillering stage to the early jointing stage). Sowing spring onions. Spring potato sowing (late February). Sowing and raising seedlings of watermelon with plastic film and sky film (late February). Sowing and raising seedlings of beans and vegetables in small sheds (late February). Zucchini planting in small sheds (late February). The solar greenhouse’s winter and spring crop of cucumbers and zucchini begin to be harvested (late February).

3. The Waking of Insects (March 5 or 6): Wheat rises, timely cultivating, top dressing, watering, and application of herbicides. Control wheat sheath blight and wheat spider mites. Sweet potato seedlings are raised on a heated stove. Spring peppers, wheat peppers, garlic and rapeseed peppers are sown and seedlings are raised. Yam seedlings. Spring Celery Live. Sowing spring onions. Dagou onion (dry onion) sowing (early March). Spring potato sowing (early to mid-March). Spring zucchini is planted in the open field (early March), and spring cabbage is planted in the protected area (early March). Sowing and raising seedlings of spring cucumbers and legumes in the open field (mid-March). Watermelon planting covered with plastic film (mid-March). Tomatoes (early March), cucumbers (mid-March), and peppers (mid-March) are planted in small sheds. Early spring tomatoes and cucumbers are planted in plastic greenhouses (both in early to mid-March). Three-film watermelon planting in greenhouse (early March). The harvest of a large crop of toona overwintering in the solar greenhouse ends (mid-March). The solar greenhouse’s winter and spring cucumbers (early March), winter and spring eggplants, and green peppers (mid-March) begin to be harvested. Plant afforestation (March 12 is Arbor Day).

4. On the vernal equinox (March 20 or 21), when wheat is jointing, watch the seedlings and apply jointing fertilizer, watch the seedlings, moisture, and sky for watering. Control wheat sheath blight, rust, and red spider mites. Water wheat and rapeseed to prevent frost. Sowing corn with plastic film. Sweet potato solar hotbed, Yangqi heating seedlings and potato rowing. Garlic stubble, rapeseed stubble, wheat stubble, pepper sowing and seedling raising. Spring cotton sowing and seedling raising (March 16 or 20), wheat-in-cotton sowing and seedling raising (March 25 to April 5). Sowing spring onions. Spring Celery Live. Sowing and raising seedlings of watermelon in the open field (late March). Planting of beans and vegetables in small sheds (late March). Early-ripening spring eggplants and sweet peppers are planted in plastic greenhouses (mid-to-late March). The winter and spring tomatoes in the solar greenhouse begin to be harvested (late March). A large crop of toon seedlings are sown and raised in the solar greenhouse for overwintering (late March). Continue to plant trees.

5. Tomb-Sweeping Day (April 5 or 6): Wheat jointing, timely top dressing and watering to prevent powdery mildew, rust, aphids, and red spider mites. Spring sowing is a busy season. Spring corn and spring sorghum are sown, and plastic film cotton is sown (early April). Wheat cotton sowing and seedling raising (around April 5), wheat stubble cotton sowing and seedling raising (mid-April). Planting spring tobacco (mid-April). Live broadcast of watermelons and cucumbers in the open field (mid-April). Watermelon planting with plastic film and sky film (early April). Watermelon planting with plastic film (mid-April). Sowing spring onions. Spring tomatoes are planted in the open field (early April), and spring cucumbers, spring peppers, and legumes are planted in the open field (all in mid-April). Spring eggplant seedlings are sown in the open field (early to mid-April). Harvest early spring cucumbers in plastic greenhouses (early to mid-April). Sowing of leek seedlings in autumn and winter in solar greenhouse.

6. Grain Rain (April 20 or 21): Control wheat powdery mildew, rust, long-legged spiders, aphids, and armyworms, and control wheat midge (mid-to-late April) ), pour the jointing water well. Sow spring millet, spring mung beans, and spring cotton (mid-April). Transplant spring cotton (April 25 to May 5), plant spring sweet potatoes and spring yams. Apply herbicides to cotton (you can choose high-efficiency grass cover, Jingfangcaoke, Weiba). Watermelon planting in the open field (late April). A large strawberry harvest overwintering in the solar greenhouse is over. Garlic sprouts are shaken or their tails are exposed, and the garlic is topdressed and watered.

7. Beginning of Summer (May 5 or 6): Control wheat head blight (spray carbendazim around 10 days after flowering) and powdery mildew. Control wheat armyworm and ear aphid. Pour the grouting water well. Transplanting spring cotton (before May 5). Sow spring millet and spring mung beans. Sow green onions in summer and plant onions in a pinch. Summer celery sowing. Sowing and raising seedlings of summer tomatoes (early May). Early spring tomatoes in plastic greenhouses begin to be harvested (early to mid-May). The winter and spring zucchini harvest in the solar greenhouse ends (early May).

8. Xiaoman (May 21 or 22): Prevent wheat from dry and hot winds and wheat withering. Control wheat rust and ear aphids. Corn, cotton, and soybeans are planted in wheat ridges (10 days before wheat harvest). Plant wheat, cotton, pepper and tobacco leaves. Sow spring millet, spring mung beans, and sow spring sesame seeds (best from May 20th to 25th). Harvest barley, rapeseed, and garlic. Plant barley stubble, rapeseed stubble, garlic stubble, pepper, cotton, and tobacco leaves. Control thrips in tobacco fields. Control of spring millet ash borer (heart borer, end of May). Use omethoate and other systemic organophosphorus slow-release agents (1 part of medicine, 0.1 part of polyvinyl alcohol, 5-6 parts of water) on the 4-5-year-old main stem of spring cotton to treat aphids (mid-to-late May). 6 Ye Ling takes off her trousers. Summer onions are sown, pinched onions are planted, and Dagong onions (dried onions) are planted. Sowing and raising seedlings of summer cucumbers (late May). Summer celery is broadcast live, and autumn celery is sown and nursed (late May). Watermelon planting in small shed. Early spring eggplants and bell peppers begin to be harvested in plastic greenhouses (mid to late May).

9. Egzhong (June 6 or 7) Harvest wheat. Sow seeds in early autumn (summer corn, summer soybean, summer millet, summer sorghum, summer mung bean, summer sesame). Planting wheat stubble cotton and wheat stubble pepper. Apply herbicides to corn and peppers (atrazine and cyclopentadiene can be used for corn fields, and Jingwenshade and Shuletong can be used for peppers). Strengthen summer management. Top dressing and watering of cotton and peppers will promote growth and prevent drought. Prevent pepper virus disease. Control first-generation cotton bollworm (mid-to-late June), cotton aphid, cotton spider mite, and corn borer (early to mid-June) in cotton fields. Apply methicillin to regulate the plant shape (9 to 10 leaves on the main stem, 0.8 to 1.0 grams per acre). Control thrips in tobacco fields. Control of spring millet ash borer (heart borer, early June). Spring smoke topping (when the first center flower opens). Summer onions are sown, small ditch onions (horn onions) are sown, pinch onions are planted, and big ditch onions (dry onions) are planted. Live broadcast celery in summer and sow celery seedlings in autumn. Spring eggplant planting in the open field (early to mid-June). Summer cucumber planting (mid-June). The picking of winter and spring tomatoes in the solar greenhouse ends (mid-June).

10. Summer Solstice (June 21st or 22nd): Early autumn crops are planted, weeded, topdressed and watered. Cotton branches are pruned and pruned to prevent and control spider mites, cotton bollworms (first generation in cotton fields), red bollworms (first generation), and aphids. The second chemical control (early flowering period, main stem and leaf age is 17-18 years old, use 2.2-2.5 grams of mediamine per acre). Control soybean aphids (late June). Sow green beans. Summer onions are sown, small ditch onions (horn onions) are sown, and big ditch onions (dry onions) are planted. Spring potato harvest. Summer tomato planting. Sowing and raising seedlings of Pinellia cucumbers (late June). Sowing and raising seedlings of celery in autumn. The harvesting of a large crop of cucumbers, tomatoes and bell peppers overwintering in the solar greenhouse has ended (mid-June). The winter and spring cucumber harvest in the solar greenhouse ends (mid-to-late June).

11. Slight Heat (July 7 or 8): Cotton enters its peak flowering period, so it is timely tilling and weeding, and pruning and topping. High-density plots and summer cotton topping (main stem 20 to 21 leaves old, 10 to 12 fruit branches, early to mid-July). To prevent and control cotton spiders, cotton bollworm (second generation in cotton fields, mid-to-late July), and pink bollworm (first generation), apply flower boll fertilizer topically.

Control soybean aphids (early July) and summer millet ash borer (heart borer). Sow mung beans (early July is the lower limit for sowing). Summer mung beans are used to prevent leaf spot (three weeks after emergence, spray chlorothalonil or carbendazim every 2 weeks), aphids, and red spider mites. Small ditch onions (horn onions) are sown, and big ditch onions (dried onions) are planted. Planting of pinellia cucumbers (mid-July), sowing and raising seedlings of autumn cucumbers (mid-July). Sowing and raising seedlings of autumn cabbage and autumn cauliflower (early to mid-July). Sowing and raising seedlings of celery in small sheds (early to mid-July). Delayed autumn tomato sowing and seedling cultivation in plastic greenhouses (early to mid-July). In the solar greenhouse, autumn and winter celery (early July) and tomato seedlings (early to mid-July) are sown and seedlings are planted, and autumn and winter leeks are planted (early July).

12. During the Great Heat (July 22 or 23), pruning cotton branches, top with "head bending", and the edges with "Two Volts", and top with sparsely planted cotton fields in fertile land (the main stem is 22 to 23 years old, the leaves are 12 ~15 fruiting branches, late July), middle and lower soil cotton fields are harvested (late July). Spray mediamine to adjust the plant shape (5 to 7 days after topping, 2.5 to 3.0 grams per acre). Control second-generation cotton bollworm, pink bollworm (first-generation), aphids (mid-to-late July), and red spider mites in cotton fields. Topdress with blooming fertilizer. Mung beans control leaf spot and aphids. Sesame prevents and controls viral diseases (spray once each in mid-to-late July to kill aphids), stem blight and leaf diseases (starting from July 25, spray carbendazim once every 7 to 10 days, and spray once every 7 to 10 days. 2 to 3 times). To prevent and control corn borer (dispose of granules at the end of corn heart leaf stage, i.e. the big trumpet stage). Control tobacco caterpillars on tobacco. Small ditch onions (horn onions) are sown, and big ditch onions (dried onions) are planted. Overwintering in the solar greenhouse, a large crop of strawberry seedlings are sown and raised (in late July), and eggplant and pepper picking is completed. The solar greenhouse is planted with leeks in autumn and winter, and the picking of eggplants and green peppers in winter and spring ends (at the end of July).

13. Beginning of Autumn (August 7 or 8) "The sickle is moved in the ten days of Beginning of Autumn", spring corn and spring millet are mature. "At the beginning of autumn, all the big and small are pulled together", cotton topping (must end), and edge topping (taqunjian, early to mid-August). Spray mediamine to control vigorous growth and regulate plant type. Control aphids, cotton bollworm (third generation, mid to late August), pink bollworm (second generation, early to mid August). Control tobacco caterpillars. Control of summer millet ear borer (spray once during the peak and final stages of poplar bloom). Control summer mung bean leaf spot, pod borer, and red spider mites. Prevent and control stem blight and leaf diseases of summer sesame. Plant cabbage (including white radish or spicy radish) three days before and after the Beginning of Autumn Festival. Autumn potato sowing. Autumn cucumber planting (early August). Autumn cabbage and autumn cauliflower planting (early to mid-August). Autumn celery is planted, overwintering celery is sown and seedlings are sown (early to mid-August), and greenhouse celery is sown and seedlings are sown (early to mid-August). Tomato planting in plastic greenhouses is delayed in autumn (early to mid-August), and cucumbers are sown in late autumn (around the beginning of autumn). The solar greenhouse is used for sowing and raising seedlings of autumn and winter cucumbers (mid-August), and planting of tomatoes for winter and spring crops (early to mid-August).

14. Summer heat (August 23 or 24): Cotton harvest begins. Harvest spring sesame seeds. Control three generations of cotton bollworm in cotton fields. Control soybean borer (mid to late August) and pod borer larvae (late end of August). Control tobacco caterpillars. Control millet ear borer. Control mung bean pod borer and red spider mites. Sowing autumn onions (late August). Sowing and raising seedlings of zucchini in autumn and winter in the solar greenhouse (late August).

15. White Dew (September 8 or 9): Autumn crops are mature and harvested. Control soybean borer and pod borer larvae (early September). Tobacco field control of tobacco caterpillars. Cotton controls pink bollworm. Control of summer millet borer (early September). Autumn onions are sown, Dagon onions (dried onions) are sown, and Xiaogou onions (crown onions) are planted. The harvest of cucumbers in plastic greenhouses will start later (mid-September). Greenhouse celery planting. A large crop of tomatoes, eggplants, peppers, and bell peppers are grown and sown in the solar greenhouse for overwintering (early to mid-September). Autumn and winter cucumber planting in the solar greenhouse (mid-September).

16. Autumn Equinox (September 23 or 24) Harvest small autumn crops. Send manure to prepare the land and prepare for wheat sowing. Winter wheat sowing (late September). Sow rapeseed and sow garlic in the open field. Autumn onions are sown, Dagon onions (dry onions) are sown, and Xiaogou onions (Oxagon onions) are planted. Sowing and raising seedlings of spring cabbage in the open field (late September). Celery planting in plastic greenhouses (late September).

A large crop of strawberries is planted in the solar greenhouse for overwintering (mid-to-late September). In the solar greenhouse, celery is planted in autumn and winter (mid-to-late September), and zucchini is planted in autumn and winter (late September).

17. Cold Dew (October 8 or 9): Sow semi-winter wheat (early October) and weak spring wheat (mid-October). Wheat seed dressing is used to prevent and control fishy smut, loose smut, and stem smut. Cotton is sprayed with ethylene to accelerate ripening (around October 5). Autumn onions are sown, Dagon onions (dry onions) are sown, and Xiaogo onions (Oxagon onions) are planted. Spring cabbage seedlings are sown in the open field (early October). Celery is planted in plastic greenhouses, and tomatoes are harvested in late autumn (mid-October). A large crop of cucumber seedlings are sown and raised in the solar greenhouse for overwintering (early to mid-October). Solar greenhouses are used for sowing and raising seedlings of winter and spring tomatoes (early and mid-October), sowing and raising seedlings of green peppers (early October), and sowing and raising seedlings of eggplants (mid-October).

18. Frost (October 23 or 24). Sow weak spring (mid-October) and spring wheat (late October). Pull cottonwood, harvest peanuts, sweet potatoes, and yams. Sow green onions in pinches (mid-to-late October), sow green onions in big ditch (dry green onions), and transplant in small green onions (horn onions). Spring cabbage seedlings are planted in the open field (late October). Overwintering celery planting (late October), celery planting in plastic greenhouses. The autumn and winter harvest of cucumbers, tomatoes, and zucchini in the solar greenhouse begins (late October).

19. Beginning of Winter (November 7 or 8): Control wheat yellow dwarf and bush dwarf diseases (spray to kill aphids and gray planthoppers). When spraying herbicides in wheat fields, you can use Superstar (also called broadleaf net) to control broad-leaf weeds. The appropriate spraying period is from the second-leaf stage of wheat to before jointing, and the weed height does not exceed 10 cm; you can use Super Star to control grass weeds. For gelding, the appropriate spraying period is from wheat emergence to before jointing, and grass weeds from the second-leaf stage to the tillering stage. Herbicides that can control both gramineous weeds and broadleaf weeds include: luthuron, methuangulon, etc. Autumn potato harvest (early to mid-November). Autumn cauliflower harvest (early November). Spring cabbage planting in the open field (early November). Overwintering celery planting (early November). Overwintering spinach sowing (early November). Overwintering in the solar greenhouse, a large crop of tomatoes, eggplants, peppers, and bell peppers are planted (early to mid-November), and toona is planted (early November). The winter and spring cucumbers are sown and raised in the solar greenhouse (mid-November), and the autumn and winter leeks begin to be harvested (early November).

20. Light snow (November 22 or 23). Harvest cabbage in time to avoid snow and freezing. Water the wheat well, apply winter fertilizer, and spray to kill aphids and gray planthoppers (to prevent wheat yellow dwarf and bush dwarf diseases). Control wheat sheath blight. Apply herbicides. A large crop of cucumbers are planted in the solar greenhouse for overwintering (mid-to-late November).

21. Heavy snow (December 7 or 8): Prevent and control wheat sheath blight. Wheat fields are suppressed, topdressed with coarse fertilizer to prevent air leakage and moisture loss, reduce freezing damage, and apply herbicides. A large crop of strawberries overwintered in the solar greenhouse begins to be harvested (early to mid-December). The winter and spring crop of zucchini are sown and raised in the solar greenhouse (early December), and the autumn and winter crop of leeks begin to be harvested (early December).

22. Winter Solstice (December 22 or 23): Wheat is irrigated with winter water. "It is best to finish watering after freezing at night." Control wheat sheath blight. Sowing and raising seedlings of tomatoes and peppers in small sheds (mid-to-late December). Plastic greenhouses are used for sowing and raising seedlings of early spring tomatoes, eggplants and green peppers (mid to late December), and sowing and raising seedlings of early spring cucumbers (at the end of December).

23. Xiaohan (January 5th or 6th) Spring pepper seedlings are sown in the open field (mid-January). Plastic greenhouses are used for sowing and raising seedlings of early spring tomatoes, peppers and cucumbers. Sowing and raising seedlings of watermelon in solar greenhouse (early January). A large crop of cucumbers, eggplants, peppers, bell peppers, and Chinese toons have been overwintered in the solar greenhouse and harvesting begins (early January). The harvest of autumn and winter celery, cucumbers, tomatoes, zucchini, and leeks in the solar greenhouse ends (early January), and winter and spring cucumbers, tomatoes, zucchini, and green peppers are planted (mid-January).

24. Big Cold (January 20 or 21) Spring tomato seedlings are sown in the open field (late January). Spring cabbage seedlings are sown in protected areas (late January).

Sowing and raising seedlings of zucchini in small sheds (late January). Sowing and raising seedlings of three-film watermelons in greenhouses (late January). A large crop of tomatoes overwintered in the solar greenhouse begins to be harvested (late January). Cucumbers are planted in the solar greenhouse in winter and spring (mid-to-late January), and eggplants are planted in winter and spring (late November).