Sweet sorghum cultivation techniques

First, the election and preparation:

It is best to choose sweet sorghum with irrigation conditions, rich organic matter and deep soil. Sweet sorghum has a smaller grain and weaker top soil capacity. When planting, the sensation is better, so that the emergence of seedlings.

Second, base fertilizer:

The amount of fertilization depends on the fertility of the soil. The fertile land can be used less, and the land is more barren. In the sweet sorghum planting before applying enough base fertilizer, if the application of farmhouse fertilizer per acre applied about 4000 kilograms, using fertilizer can be applied along the planting ditch per acre of 10 kg of urea or 30 kg of compound fertilizer, mixed with the subsoil after sowing.

Third, sowing time:

According to the local climate, variety, cultivation purposes vary. The ten-day mean temperature of 13 degrees Celsius can be used as a temperature indicator for proper sowing. In northern China this period is about mid-April. Sowing is too early because of the low temperature and the risk of powder species, too late may not be too mature. In southern China, two crops can be planted each year, and crop yields from the late March to early April are higher in the head crop.

Fourth, the amount of sowing:

The sowing rate per acre is between 500 and 750 grams. It can be sown with a wheat seeder or manually on demand. When planting, it must have enough mantle, with a depth of 2 to 4 cm, clay 2 cm.

V. Cultivation density:

Early maturing varieties can take a row spacing of 20 centimeters and 60 centimeters, about 5,556 per acre, and late maturing varieties can use a row spacing of 2070 centimeters, and about 4,762 acres.

Sixth, transplanting seedlings:

In order to solve the contradiction of the lack of growth period of sweet sorghum in the wheat bran, the method of seedling transplanting can be adopted. Seedlings should be planted near the cultivation site, and the nursery should be started 20 to 30 days before transplanting. The seeding rate is 2.5 times the number of seedlings. When the seedlings have 5 to 6 leaves, they can be transplanted. In order to reduce the trouble of transportation, the soil can be removed without soil erosion, but rooting should be minimized. In order to reduce the evaporation of water, the tip of the plant should be cut off immediately after planting and planted in a well-organized planting ditch as soon as possible. It is advisable to bury it at the white-green junction of the base of the seedlings and water immediately after planting. The amount of seedlings used for transplanting is small. When the amount of seeds is limited, this is an effective way to expand the planting area.

Seventh, make up seedlings:

Due to poor sowing quality or damage caused by underground pests, etc. Filling the seedlings when taking dense seedlings, the same method and seedling transplanting, filling the seedlings after its partial fertilization of water, prompting them to quickly catch up with normal seedlings.

Eight, seedlings, Dingmiao, in addition to earthworms:

The mu cultivating rate of the Yajin sweet sorghum is often much larger than the number of seedlings preserved, and the seedlings are necessary. Early seedlings can prevent seedlings from competing for nutrients and moisture, reducing land consumption and helping to cultivate strong seedlings. The Yajin sweet sorghum seedlings were carried out in the 2 to 3 leaf stage and the weak seedlings in the densely populated section were removed. In the 4 to 5 leaf stage, the seedlings were planted at a predetermined spacing. Yajin sweet sorghum has the habit of giving birth. The number of axillary buds differs greatly depending on the variety. There are more than a dozen, and one or two less. Over-consumption of a large number of nutrients, affecting the growth rate of the main stem. It is necessary to remove all the earthworms when they are kept in the fields and cultivated as sugar and wine crops. If it is cultivated as a green feed, it is not necessary to remove the tillers, but the amount of sowing should be adjusted so as to prevent the excessive density from causing lodging.

Nine, cultivating weeds and soil:

The first cultivator in the seedling stage of 2 to 3 leaves can be combined with the seedlings to increase the temperature, eliminate weeds and protect against drought and drought; the second cultivator is combined with Dingmiao in the 4-6 leaf stage, and the depth is About 10 centimeters to cut off the roots of the surface layer and promote the roots to lower; the third cultivator is usually carried out 10-15 days after the second cultivator, combined with small earth; when the plant grows to 70 cm in height, combined with topdressing for large earth. The soil between the rows is planted on the base of the sweet sorghum, forming ridges between the rows to promote root growth, enhance absorption capacity, prevent lodging, draining, and facilitate irrigation.

Ten, fertilization:

The type and amount of fertilization depends on soil fertility, soil type and moisture status. Due to the high biomass of Yasuji sweet sorghum, base fertilizer should be applied before planting, and more phosphorus and potassium fertilizer should be applied. Nitrogen fertilizer should be applied early and not excessive so as not to affect juice quality. Top dressing is done in combination with earth. The amount of fertilizer should be slightly higher than the amount of local corn.

Eleven, irrigation:

Yajin sweet sorghum is very drought tolerant, but in order to obtain high yields, appropriate irrigation must be performed according to the local climatic conditions and the stage of development of the plant. Seedlings usually do not require irrigation. After the jointing, the stems grow 4-10 cm tall each day. If there is water shortage, plant growth and young panicle differentiation are inhibited. The booting stage is the vigorous growth period of sweet sorghum. This period can not be short of water, the flowering period is the peak of water demand, there must be enough water for flowering, pollination needs and lay a solid foundation for the accumulation of solid and stalk sugar. If the climate is prolonged, it should be irrigated in time to ensure the normal growth of Yajin sweet sorghum. In most areas of China, the vigorous growth period of sweet sorghum coincides with the rainy season, which provides good conditions for the growth of sweet sorghum.

XII. Pest Control

1) Locust: Sweet sorghum has high sugar content and is vulnerable to aphids. Locusts may occur in large numbers in high-temperature, dry, and rainless years. Locust should be detected as soon as possible. Sweet sorghum varieties are allergic to organophosphorus pesticides and have been sprayed and killed with imidacloprid (trade name “One Shot”).

2) Locust: When it is found that aphids are harmful to the heart, imidacloprid is sprayed; if the aphid has already entered the sweet sorghum culm, it can be prevented and controlled by carbofuran at the heart; after the sweet sorghum has eared, the aphid is up to the panicle. Imidacloprid can be used to kill.

Thirteen, renewable sweet sorghum:

The southern provinces have a long growth period. Planting sweet sorghum can be used to harvest two crops at a time. The yield of regenerated sweet sorghum is 80% of the first crop, and the growth period can be shortened by about 35 days. The second crop can be harvested without replanting. Cultivation mainly pays attention to the following points:

1) timely harvest: sweet sorghum grain ripening after timely harvesting ears and stalks, in order to facilitate the growth of the second pod, selected sunny harvest, easy to incision heal, harvesting at the edge of the ground 3 to 5 cm with a knife cut;

2) Timely fertilization: Immediately after harvest, plow ridges will be broken and applied along the furrows in line with fertilizer or human waste, then covered with soil;

3) Select strong buds: Select to keep the upper two robust buds, and remove all other buds;

4) Pay attention to soil to prevent lodging, and combine topdressing with soil before plant closure.

XIV. Prevention of bird damage:

Sparrows particularly like to eat sweet sorghum seeds, especially when planting in a small area, a species can be eaten cleanly in a day, in addition to trying to drive birds, the negative factor is: the birds enter the milk period began to damage At the time, 4 to 8 sweet sorghum heads were bundled together and covered with plastic or nylon yarn bags to prevent birds from eating. The paper bag began to function a bit, but it didn't take long before the bird learned to break the paper bag.

Fifteen, harvest:

When the grains in the lower part of the ear of most plants reach the wax ripening stage, they can be harvested. Ears harvested, dried, threshed and properly preserved. The leaves of the plant after the harvest can continue photosynthesis and the sugar in the stalk continues to increase, peaking about a week after the head. Therefore, it is best to harvest stalks 5 to 7 days after the heading, and to test and test production. In areas where the growing season is short and where it is subject to frost, stalks can be cut at the time of harvesting.

(Triangular leaf Coptis) Ranunculaceae, Coptis. Rhizome yellow, internodes obvious, mostly densely rooted, with transverse stolons. Leaves 3-11; leaf blade ovate, slightly leathery; petiole glabrous. Scapes yellow-green, narrowly ovate, apical apex; petals nearly lanceolate, apex acuminate, Middle slightly widened, with honey groove; stamens long only about 1/2 of the petals; anthers yellow, filaments narrowly linear; style slightly curved. Oval oblong, carpels stalked puberulent. March-April flowering, April-June results. Specialty Chongqing pillars yellow water. Health elevation of 1600-2200 meters between the mountain forest, often cultivated, wild rare. Rhizome is a famous traditional Chinese medicine ("Coptis"), with berberine, Coptidis base, Coptis base, tetrandrine and other alkaloids, can cure acute conjunctivitis, acute bacillary dysentery, acute gastroenteritis, hematemesis, Embolism.


Plant Triangular Leaves Coptis

Plant Triangular Leaves Coptis

Plant Triangular Leaves Coptis

Chongqing Taisun Pharmaceutical Co., Ltd. , https://www.taisuncoptis.com

Posted on