Amphisarca Lists
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Several methods of judging watermelon ripening
1. Accumulated temperature method. Watermelon needs a certain accumulated temperature from flowering to ripening. Generally, it takes 700 ℃ 800 ℃ for early and middle maturing varieties and about 1000 ℃ for late maturing varieties. Therefore, under the condition of suitable sowing time in spring and normal climate, the fruit development days of each variety are basically fixed. Early-maturing varieties need 28Mui 3.
2018-09-16 -
Simple control techniques of watermelon diseases
Before sowing, select the greenhouse that has not planted melon crops, or use the shed with high temperature in summer leisure period, in order to prevent the invasion of soil-borne diseases such as Fusarium wilt, sudden collapse, blight and anthracnose at seedling stage. The seeds were soaked in 55 ℃ warm water for 10 minutes, stirred continuously, cooled and soaked for 6 hours, then.
2018-09-16 -
Strengthen the field management of watermelon at present
At present, the corresponding field management of watermelon should take the following measures: 1. Open a good drainage and irrigation ditch: if the trench does not meet the requirements before planting, the general ditch, perimeter ditch, middle ditch and border ditch should be opened in time. The depths of the grooves are 1.5 m for the total trench, 1.0 m for the middle ditch, 0.8 m for the middle ditch and 0.4 m for the border ditch. The trench must be unobstructed.
2018-09-16 -
Three elements of watermelon flower and fruit protection in high temperature and rainy season
The hot and rainy season is a test for most crops, and watermelon is no exception. In this weather, what we mainly do is how to protect flowers and fruits and improve fruit setting rate and watermelon yield. Mainly from three aspects of protection: factor 1, cultivation and management in the greenhouse 1, high temperature in summer.
2018-09-16 -
Key measures for raising watermelon seedlings in winter
In order to improve the heat preservation and heating measures of the seedling shed, the heat preservation and non-performance can be greatly improved by using polycyanoethylene non-dripping film instead of polyethylene film, and the greenhouse temperature can be increased by 1-2 degrees. Temporary heating equipment such as fire wall or heating furnace should be installed in the shed. Artificial warming should be carried out when necessary. 1. Watermelon and rootstock seeds were treated at low temperature.
2018-09-16 -
"five looks" to distinguish whether watermelons are sitting or not
The ovary of precocious watermelon is generally round (a few are oblong), and the female flowers with few hairs, thick and long fruit stalk and large petals are easy to sit on watermelon. Fruit-shaped oval melons (mostly mid-late ripening varieties), ovaries are oblong, hairy, fruit stalks thick and long, petals large female flowers easy to sit melon; the reverse is not easy.
2018-09-16 -
Cherry cultivation
1. Variety selection, garden establishment and planting Chinese cherry has weak cold resistance and likes warm and moist climate, so it is suitable to be cultivated in places with an annual average temperature of 15-16 ℃. Sweet cherries like cold and dry. The natural dormancy period of cherry is about 80,100 days. The chilling requirement for sweet cherry to complete dormancy is 1 100 to 1 300 hours below 7.2℃. Sour.
2018-09-16 -
Key techniques of Cherry cultivation
(1) soil management soil management should first lay a good foundation before planting and continue to improve the soil after planting. 1. Enlarge the acupoint and turn deeply. The method is to start from the edge of the planting hole and expand outward every year or every other year, digging a circular groove of about 50cm wide and deep 60cm until the two trees meet each other. Turn it deep.
2018-09-16 -
Technology of pressing vine and pruning of watermelon
Vine pressing and pruning are the main technical links in watermelon cultivation and management. through vine pressing and pruning, land and light energy can be effectively used to regulate and inhibit the growth and distribution of watermelon stems, so as to improve the quality and yield of watermelon. 1. Invert seedlings and cultivate soil in the rhizosphere before pressing the vine. 6 true leaves appeared in the seedling and began to be smoked.
2018-09-16 -
The key to artificial pollination of watermelon
(1) the flower pollinates the female flower stalk gently to expose the stigma, then select the male flower that blooms on the same day, pick it off together with the petal, turn out the petals and expose the stamens, and gently smear the pollen on the stigma of the female flower in the node position of the melon, so that the pollen is scattered evenly on the stigma.
2018-09-16 -
What problems should be paid attention to in watermelon seedling management?
What problems should be paid attention to in watermelon seedling management? (1) temperature management: in temperature management, two tendencies should be avoided, one is that they do not dare to uncover the film for ventilation, for fear that the seedlings will be frozen, resulting in high temperature and humidity in the seedling bed, causing the seedlings to grow excessively; the other is that the ventilation rate is too large, which makes the temperature in the bed too low, causing the seedlings to grow slowly.
2018-09-16 -
Comprehensive Control of Watermelon Seedling Diseases
1. Symptoms of major diseases. 1. Cataplexy. In the initial stage, there is a phenomenon in the root and stem of the seedling (the joint of the root and stem). The disease spot is the same as boiling water, and then the disease part becomes yellowish brown and dry shrinks, the cotyledons have not yet withered, and the seedlings fall to the ground. Stunting disease often occurs in the seedling cotyledon stage unearthed to 2 true.
2018-09-16 -
Four key steps in raising Watermelon seedlings with Hot Kang
The hot Kang seedling of watermelon has the characteristics of fast heating, uniform temperature, low cost, simple operation and so on. Strong watermelon seedlings can be cultivated in January and February when the temperature is very low, and the effect is similar to that of an electric hotbed. First, build a seedbed. First, dig a bed pool that is 4.5 meters long from east to west, 1.6 meters wide from north to south and 0.2 meters deep.
2018-09-16 -
Three measures for watermelon post-flowering management
It is difficult to set fruit if watermelon is in low temperature and rainy season with artificial pollination. On the one hand, the low temperature and rainy weather is not conducive to the activities of pollinators such as bees; on the other hand, the rain is too much, it is easy to wash away the pollen on the female flower stigma or make the pollen burst and lose the germination ability, and it is difficult to complete the fertilization.
2018-09-16 -
Requirements for cultivation environmental conditions of watermelon
First, the variety selection as a gift watermelon should choose small and exquisite, beautiful appearance, good quality varieties, as the main varieties, single fruit weight should be in the 1-2kg heavy varieties. If the fruit is too big or too small, it will lose the function of a gift. At present, there are mainly Huangshui jade, Xiangyu crystal, flower beauty, Xiangyu black rose, hibiscus honey,.
2018-09-16 -
There is a good way to keep watermelons fresh for two months.
Chemical control began to spray at the initial stage of the disease, every 7 to 10 days, continuous prevention and treatment for 2 times. 68.75% DuPont EC 1000 times, 25% Shibaogong EC 1000 times 1500 times, 80% Sanderson wettable powder 600 times 800 times, 50% topazine wettable powder 1000 times, 40% Daco.
2018-09-16 -
Key Technical points of Grape Spring Management
Spring is the season for grape sprouting, leaf spreading, branch elongation, heading, flowering and fruiting. Strengthening the management of grape in spring can improve the yield and quality of grape. From the middle and last ten days of February to the beginning of March, the budding water was irrigated and available nitrogen fertilizer was applied. Orchards with conditions at this stage should be irrigated in time to ensure neat sprouting. And at this point.
2018-09-16 -
Field management needs to be strengthened after grape harvest.
As the tree is weak after grape harvest, the field management should be strengthened to improve the cold resistance of the plant in winter and promote the growth of new branches in the following year. Pruning Qingyuan on the basis of summer pruning continues to do a good job of heart-picking and branching, removing tendrils and thin branches, and removing diseased leaves, so as to reduce nutrient consumption and promote full bud eyes. At the same time, remove weeds from the garden.
2018-09-16 -
Winter pruning technique of grapes in scaffolding
Most of the scaffolding grapes are trimmed by the "keel" method, which can maintain good ventilation and light transmission, strengthen the top advantage, make the tree strong, and achieve the goal of high quality and stable yield. First, it is more appropriate to use a single slope scaffolding for the retention and shearing of the main vine, which is inclined to the south. Munag grape grows more vigorously, according to its.
2018-09-16 -
Early Fruit cultivation techniques of American Black and Red Grape
First, the garden construction technology: 1. Garden selection: grape is most suitable for sandy loam with loose soil and rich organic matter. two。 Frame type selection: in order to produce early and increase the previous yield, we should choose the hedge type, mainly the single hedge type. Row spacing 2-2.5 m, frame height 2-2.5 m, pillar spacing 4-5 m, in the pillar.
2018-09-16