Many of the natives grow a number of autumn potatoes, so that they can harvest early and produce more. In the first place, they were rushing down with potatoes, working for half a day to discover that they were growing early without potatoes, with small amounts of potatoes, and were prone to rotten potatoes, disease and, finally, a large cut in production。
Autumn potatoes are not the same as spring potatoes, which are cold and cold, have no timing for planting and are difficult to manage quickly. The climate gap between the north and the south is wide and the days suitable for the next species are quite different. Today, in the light of years of practical experience in the field, we have been able to arrange for the planting of potatoes in the various regions of the country, as well as a full set of pit-scrambling features, with much more graft and a smooth head, and a lot of production after the fall。
First, let's get this straight: why can't autumn potatoes grow blindly early
Potato-mashed potatoes are very selective to temperature, and the most appropriate temperature for the size of the chips is 15°c ~ 20°c. When temperatures are longer than 25°c, the ground potatoes stop swelling, and the ground vines only grow mad, feed all the seedlings and do not contain the chips。
If the seeding is too early to keep up with the high temperature of the autumn tiger after the seeding, even if it cools later, the potato has missed the best expansion period and production has been lost。
It can't sow too late, it's warmer later, it's colder, it's colder, it's frozen before it's long enough, and it's cut back。
Autumn potato cultivation core principles: to allow potato expansion falls just in the autumn, avoiding high temperatures and late frost。
Pipe avoidance warns against planting alone, which is a reference, focusing on the time of constant local temperatures and early frosts, which are tailored to local conditions。
Ii. Detailed timing of the fall potato standard planting in all regions of the country
1. Quarterly zone in the north (three north-east provinces, inner mongolia, north-north of the river, north-west of the mountain, parts of ningxia)
Climatic characteristics: short frostfreeze, fast cooling in autumn and early frost。
Suitable planting time: late july — early august
Emphasis: the area cannot be towed, the planting is too late, the frost arrives early and the chips can't expand. At the same time, it should not be earlier than late july, when high temperatures can easily cause the cultivation of potatoes to rot。
2. Central central china (most parts of shandong, north henan, south central hebei, central mount west, north west wing)
Climatic characteristics: the summer heat is long, the autumn tigers are visible and gradually cooled after september。
Suitable planting time: mid-august
Highlights: the best way to sow in early august was to avoid extreme summer temperatures and then wait for the temperature to fall in september, just as the potato boom was. We need to keep the seeds from planting before the end of july。
3. Southern hwang hwang, jiang hwa region (south henan, north anhui, north jiangsu, north lakes)
Climatic characteristics: high summer and autumn temperatures persist, cooling down in autumn and longer periods of frost。
Appropriate planting time: mid-august
The region is one of the most taboos of early seeding. High temperatures in the early part of july and august, with the early broadcast of very easy-to-reach potatoes, were just about to fall in late august。
4. Centre-downstream area of the yangtze river (southern jiangsu, south anhui, zhejiang, north-west of the gang, south-north of lake, north of hunan)
Climatic characteristics: incendiary heat, high temperature lasts for long periods and more rain in autumn。
Suitable planting time: late august — early september
Highlights: avoid the high temperature of the winter season while keeping an eye on the rainy season, so as to clean up drainage and prevent the cultivation of soybean saplings. Wet-resistant potato varieties are preferred。
5. South-west plateau region (yunnan, guizhou, sichuan heights)
Climate characteristics: high altitude, cool summer, high day and night temperature, suitable for potato growth, and wide variations in intra-regional temperature。
Appropriate planting time: mid-august to mid-september (low altitude delayed and high altitude advanced, as appropriate)
Highlights: frozen high-altitude mountain areas come early and can be duly early; low-lying valleys are still hot in the autumn and need to delay seeding and prioritize drained plots。
6. South china (gangdong, guangxi, fujian, hainan)
Climatic characteristics: the summer is long and hot, and the winter is very late, with virtually no early frost。
Suitable planting time: late september — early october
Highlights: china must not plant early, in august/september at high temperatures, and the seeding of potatoes is highly perishable in the soil, until the temperature drops in autumn。
Three, four things must be prepared before the potato is planted in the autumn
Even if the planting dates are selected, the pre-positioning period is not ready and the disease continues to grow。
1. Choosing potato varieties suitable for autumn broadcasts
In autumn, pre-maturity, high-temperature and disease-resistant varieties are preferred. Do not directly use old potatoes from spring potatoes, which are not stored properly and are prone to decomposition, disease and loss。
2. Cultivation, seeding
1. Cuts around a week before seeding, each with at least two budding eyes and a single block weight of 30 to 40 grams
2. Slice the grass ash and dry the wounds in the cold air so as to prevent subsequent decay
3. Conditional sprouts may be triggered by shallow sand formations, which may last no more than one centimetre to the ground again and produce seedlings in a faster and more integrated manner。
Pipe avoidance alerts: cut blades are wiped early to avoid cross-infection, not too thin, too small, with insufficient nutrients for small pieces of potato, and small and thin。
3. Plots and drainage
The rain is erratic during the autumn season, and potatoes are the worst afraid of water-filled potatoes. Land parcels are soared, they are soared, they are soaked and drained. Do not choose low-lying, easily watered plots。
After the previous harvest, weeds were removed from the ground to reduce insect insect egg residues。
4. Bottom fertilizer balanced application
Demersal fertilizers are preferred to be fully fertilized farmers, with a small mix of compound fertilizers, to avoid the use of large amounts of nitrogen fertilizer alone and to prevent late-stage seedlings. The fertilizers are separated from the seeding of potatoes, so that no direct contact is made to avoid the burning of potatoes。
Iv. Elements for the enhancing of autumn potato
1. Depth of seeding: high temperatures in autumn, drying of the surface of the earth, slightly deeper in sowing than the spring potato, with soil ranging from 8 to 10 cm
2. Reasonable planting: the long-term overall shortness of the potato production in the autumn and the production of a single plant of less than the spring potato can increase cultivation density appropriately
The seeding shall be conducted in such a manner as to avoid high noon temperatures and to reduce the loss of water from the seeding of potatoes。
V. Key points for the long-term care of potatoes in the autumn
1. The seeding phase: soil is kept wet, small water is irrigated, water is not overflowing, and in case of heavy rain, gutters are drained
2. Current cassava period: this period is a critical period for the expansion of the chips, which is followed by water fattening, increases in potassium fattening and promotes the expansion of the chips
3. Medium-term and later management: timely cultivation of soil to prevent the appearance of chips on the ground from becoming luminous and green; timely prevention and treatment of chronic diseases and aphids
4. Timing of harvest: after the aging of the vines of the ground, the sun is chosen for harvest and then the skin is dry for storage。
Vi. Five major pits where autumn potatoes are most easily grown
Zone one: the earlier the sowing, the higher the yield
Blindly predetermining, the seedlings continue to experience high temperatures, the seedlings grow mad, the ground does not contain potatoes, the disease is high and yields are reduced. Autumn potatoes watch the temperature sowing, not the weather。
Zone two: big water pours after planting
Potato wounds are not fully healed, and the high water is sorely immersed in potatoes; the high temperature and humidity are high, and the fever is high. The water is dry and wet and the water is slowly watered。
Zone three: spring potato spears directly for the autumn seeding
The spring potato harvest is stored at high temperatures, prone to degradation, disease, weakness and longness, and is conditional on the replacement, to the extent possible, of a suitable autumn seeding。
Zone four: no high-strength cultivation, flat cultivation
The fall rains are variable, water is flat, the probability of bad potatoes is much higher, and the autumn potatoes must grow。
Zone five: no soil later, truffle of chips green
The soil-stained potato skin becomes green, produces harmful substances, is not edible, reduces the value of commodities, and before sealing it up, it is cultivated。
Vii. Emergency remedies for disappearances
1. Continued high temperatures after seeding: surface layers of the earth cover the straw to cover the cooling of the sun, with a small amount of water to keep the water wet and avoid the drying of potatoes
2. Large-scale decay of the seeding of potatoes: timely cleaning of rotten potatoes, estrangement of the soil and replanting, if necessary, for several days
3. Saplings, with no potatoes: stop applying nitrogen fertilizers, control water, appropriate removal of twigs from the bottom, increase of potassium fertilizers and promotion of the transfer of nutrients to the subsurface chips
4. Late exposure to early frost: early watering before the frost comes, or straw cover to protect the temperature and mitigate the damage caused by the cold。
Wenmu's summary is good
Autumn potato seeding is done early and time is selected according to the temperature of the region; in the north, it is done in advance, and in the south, it is delayed to grow, it is ready to grow, it is drained, it is scientifically protected, and it is very productive。
For everyone:
Autumn potatoes are not available early and temperatures are the most important
In july and august, it was broadcast in south nine, with time to remember
(b) the stem of the sprouts and the high-water drainage cellar
Potassium is used to control the land and the chips are full of harvests。
I find this fall potato planting schedule useful, welcome the collection, forward it to the neighborhoods, select the planting window, grow a large potato, harvest after autumn
