At the moment, the cucumbers of the open floors and sheds enter the critical stage of chicken-sitting, with many vegetable farmers crouching daily in gardens to pour water, some with wild vines and flowers, some with fine strips, some with malformations, others with rotting roots, and others with decaying trees. The same species, the same bottoms, the picks of cucumbers, some of them early and early, and the problems are mostly due to poor water management and lack of understanding of the cucumbers' long-term demand patterns. Today, in the context of the prevailing field climate, the six cucumbers have been detached from water use habits, the water programme has been refined and phased, and water recharge has been rationally controlled, and the cucumber vines are thick and continuous with fruit。
I. Shrimp seasons are drought-resistant and water is so heavy that they can be sorely fed
The cucumber seedlings are shallow and thin, with only 10 centimetres above and below the ground depth, and drought-resistant water is the primary characteristic, which is one of the most easily pedestals of vegetable farmers. Many farmers sow seedlings, fearing a short water shortage, pouring water every two to three days, chronic saturation of the soil, lack of oxygen in the earth floor, rapid decomposition of the plume, rigidity of seedlings, yellow leaves and dead seedlings。
It is most appropriate to maintain 60 per cent water content in seedling soils and to follow the dry-wet principle. Before seedlings reach the two leaves, unless they are dry and dry from the surface of the surface, the water will be reduced to a minimum, and moderate dry seedlings will contribute to deep-seated roots down, the saping of the seedlings will be short, and lateral resistance will be enhanced. It is critical to plant the seedlings, so that small water is immersed in the surrounding soil and no longer soaked for seven days。
North-south cultivation was managed separately: rain-fed open areas in the south, deep-drilling ditches followed by rain-drilling, and rain-drive areas were eliminated; and dry winds in the north were used to select small morning water spots to avoid high noon temperatures. Simple earth survey: remove 2 cm of soil from the surface, dry and loose and watered。
Ii. The condensation of the cranium is pushed on the water
The cucumber-crawling phase has been characterized by strong nutrient growth, and water control imbalances have directly affected the guacamole. Heavy water is responsible for increasing the length of vines and foliage, increasing their nutrients to the point where they are fully fed, preventing the lumbering of flowers, reducing the number of female flowers, and reducing the number of flowers in the later stages。
The soil moisture of the cranium period is stable at about 65 per cent, with a small water drop at intervals of 7 to 10 days, depending on the permafrost. Water is given priority in the morning of the sun, in the air and in the showers, in a timely manner, and in the open from the rainy weather. Water fertilisation is synchronized, nitrogen fertilization is reduced during the water control phase, phosphorus potassium fertilisation is increased, and lumbers are divided with force。
The rainy season in the south has reduced the frequency of water irrigation, relying on natural rainfall and draining water first; the northern spring drylands block has been filled with water by ditches, which have been eliminated. Punctuation: chicken stretches with less water and more females sit firm。
Iii. Severely controlled water during the first flower, and the water is very easy to fall into cucumbers
The cucumber season was a turning point in the transition from nutritional to reproductive growth, and the sudden increase in moisture was the main cause of the fall and fall. The soil is over-watered, growing too strong, nutrition struggles to feed vines, and larvae are not supplied with nutrients。
Soil moisture during the first flower period is reduced to 55 to 60 per cent, and water is suspended as long as the leaves do not fall. When half of the melons in the fields grow to the point where their thumbs are thick, the water control phase is over and the water supply is gradually restored. During this period, the shed was planted with attention to the humidity of the shed, watered with increased ventilation, reduced leaf cover and reduced the probability of frost and powder disease。
In the south, there is a series of rainy periods, with drainage and asphalting and no extra water after the rains; and in the north, arid plots of land, with a small amount of water flowing along the edges of the puddle, do not stretch through the roots of the earth。
Iv. Water needs surged during the poignant period and water-deficit melon strips were deformed form
The bulk harvest period is the peak of the cucumber's need for water for the whole reproductive period, with fruit expansion dependent on sufficient moisture, soil drying and flooding, chronic water scarcity, melon cell development, bending, fine waist melons, beaks, and a sharp decline in commerciality。
Soil moisture is maintained at 75 to 80 per cent during the fertilization period, water is poured around every five days, soil is always moist and no further heavy water can be draught. Three days before the harvest, the cucumber can be moderately watered, and the cucumber can be so full as to be fine. Watering is fixed and best served around 9 a. M。
In the south, water is poured in the morning and in the evenings in order to avoid the tan of the afternoon; in the northern drylands, water is used in isolation to reduce the humidity of the fields, taking into account the protection against disease。
V. Low-temperature rain-fed water, wet cold-induced disease
The cucumber root system is suitable for temperature of 20°c ~ 28°c. It is watered in low-temperature, rain-fed environments. The temperature is rapidly declining. The root system is prevented from sucking water. A large number of vegetable farmers saw the cloudy soil dry and watered as usual, in a matter of days, causing widespread disease。
Water is completely suspended regardless of whether the soil is dry or wet, when continuous rainfall and temperatures are below 15°c. The sheds are exposed to cooling weather, delay the watering hours and wait for the weather to return to the sun before refilling. If the soil is too dry, the leaf-spray can be used for temporary wetting without major field water。
Spring and rain in the south run long hours, and the whole process is wet by drainage; the north is cold and cold, and the water cycle is delayed to reduce the water content of field soils。
Vi. Gradual reduction of water in the post-harvest period and prevention of prolonged harvesting of premature decay period
In the latter part of the cucumber harvest, the roots are ageing, the capacity to absorb water is declining, and the persistence of heavy water irrigation is prone to early root decay, with leaves falling yellow, and the pull-out early。
Soil moisture fell back to about 65 per cent at the end of the period, with water between 8 and 12 days to stretch, and a small amount of water is sufficient to sustain the plant activity. Potassium phosphate is sprayed on the side of the leaf, rehydration is combined, slowing the aging of the leaves and continuing to hang the melon。
The late cooling of cucumbers in the south has gradually reduced water irrigation; the northern autumn drylands have a small amount of water recharge to prevent drought from falling leaves。
I'm going to be able to do some management skills
In the context of the current phase of the cucumber field environment, three practical points of care were added. First, the water mix is followed by fattening, and during the guacamole is applied with water to sodden with potassium water, in small quantities, to improve the quality of the seating fruit; secondly, the water is distributed in a synchronized manner, with regular inspections during high-wet periods, priority is given to the physical control of wetness and disease control, the selection of a pesticide for registration in compliance and the maintenance of a safe interval; and thirdly, the whole of the guacamole is accompanied by water control, the surplus branch is removed in a timely manner, the consumption of nutrients is reduced and the concentration of nutrients is provided for the growth of the melon strip。
In sum, cucumber water is not given a single fixed number of days and can be grown with a constant flow of cucumbers, depending on the period of seeding, chicken stretching, primary flowers, fruits, and five long-lived, long-term water control, adapted flexibly to the north-south climate, weather changes, and avoiding the two faults of water flooding and water flooding. Locally, the nature of the soil and the open-air environment vary, and vegetable farmers adapt their water-watering programmes to their local needs, so that they are not forced to carry rigid kits。
