Tainan 6, a New Super High yield Soybean Variety, how to grow High yield Soybean

A new soybean variety "Tainan 6" for mulching and green manure: do you know the new soybean variety "Tainan 6"? Do you know what features it has and the benefits of this breed? If you don't know, you want to plant it. Let's take a look at it.

This variety is bred by cross breeding method, and its hybrid parents are Zhongxing 3 and wild soybean (G. soja) (introduced in Japan). It has the characteristics of small seed, low creeping, fast mulching rate, high ​​ of fresh grass yield and growth period of more than 180days. it can be used for orchard mulching cultivation, which can reduce the use of herbicides and artificial weeding, as well as water supply and dry land green manure, and increase the diversity of green manure. Reduce the problems of diseases and insect pests encountered in the promotion of single green manure.

A new soybean variety for mulch and green manure, Tainan 6 series, was developed in cooperation with Zhongxing University and Chiayi University, which is suitable for orchard mulching cultivation and fallow field green manure cultivation.

Tainan 6 belongs to legume green manure, which can increase organic matter fertilizer, reduce the application of chemical fertilizer, reduce soil erosion after cultivation, and have the function of greening and beautifying landscape. Tainan 6 is suitable for green manure cultivation in sloping land, flat orchard and fallow land. After popularization, it is expected to provide tens of thousands of hectares of orchard cover cultivation in Taiwan, and the growth period is long, so it should be the best choice for paddy and dry fields as green manure and long-term mulching.

Characteristics of new varieties

I. Agronomic characteristics

1. Growth habit: germinate about 3-7 days after sowing. The number of flowering days is about 47-90 days in spring, 45-75 days in summer and 43-53 days in autumn. The number of childbearing days is 179190 days in spring, 118,139 days in summer and 96,122 days in autumn. The plant is sensitive to light and belongs to infinite growth type.

two。 Maturity: late maturity.

3. Disease resistance: no purple spot was found in this variety without inoculation of pathogens and pesticide control, and the incidence of dew fungus and rust was lower than that of tiger tail green pea.

4. Insect resistance: the damage ratio of wormhole area in plant leaves was lower than that in Huwei green pea, that is, Tainan 6 was less damaged by night moth larvae.

5. Growth period: orchard mulch cultivation, from sowing at the beginning of March to 60 days of growth, the yield of fresh grass reached the highest at 120 days, and then decreased gradually, the plant dried up naturally when it grew for 200 days, and the branches and leaves covered on the ground did not need to be ploughed. Resowing to the next spring to achieve the effect of annual coverage.

6. The burial period of green manure: Tainan 6 had the highest fresh and hay yield and plant nutrient content in the pod filling stage, so the plant Doulai filling stage was the best burial period for green manure.

7. Output:

(1) fresh grass yield:

Spring cropping for 80 days is 19,717,35,000 kg per hectare, and summer cropping is about 17333-34667 kg per hectare.

(2) seed yield:

The yield of artificial harvest is 1634 ~ 2233 kg per hectare.

Second, plant characters

1. Plant: according to the regional test data, the average spring mulch height is 50.7 cm, and the summer mulch height is 48.0 cm. In the late stage of sowing and growth in spring, the length of main stem can reach 290cm ~ 370cm, and the length of main stem in autumn is about 75.3cm ~ 97.5 cm, and the number of branches is about 5cm. The number of nodes of the main stem is 1720.

two。 Seedlings: Hypocotyl purple.

3. Stem: green.

4. Leaves: Ternate compound leaves, leaflets oval, green leaves.

5. Flowers: purple.

6. Pods: pods are sickle-shaped, dark brown, covered with brown velvet, 2 to 3 seeds per pod.

7. Seeds: oval, seed coat black with dark brown markings, cotyledons yellow, navel black, 100 seeds weighing 5-8 grams.

The advantages of variety

1. The effect of long growth period and coverage is good: Tainan 6 belongs to infinite growth type under long day, and the plant has many branches, strong regeneration ability, and coverage is not affected by lack of plants. during the growth period, the stems and leaves are luxuriant, and because of good nitrogen, it reaches full coverage 50 ~ 60 days after sowing, and the growth period is as long as 190 days, which has a great inhibitory effect on weeds.

two。 The effect of promoting the growth of fruit trees is remarkable: Tainan 6 has the functions of water conservation, fertilizer conservation and nitrogen fixation. After planting Tainan 6 between rows of citrus orchards for one year and nine months, the trunk base circumference, height and crown width of citrus plants increased by 10.9cm, 93.5cm, 344.7 cm, 8.3cm and 267.0 cm respectively. Therefore, the growth of citrus trees planted in Tainan No. 6 in citrus orchard is better than that in artificial mowing area.

3. It is easy to cultivate and reduce the cost of orchard management: Tainan No. 6 uses seed sowing to establish orchard mulching cultivation, which is fast and easy. The seed sowing rate per hectare is only about 15 kg. This variety has less diseases and insect pests than other soybean varieties. No ploughing and cover application is needed in the later stage, and the natural mulch is formed. The soybean mulching cultivation cost per hectare and green manure is 66800 yuan less than that of the orchard in the artificial mowing area.

4. Tainan 6 adapts to the high temperature and humid environment in spring and summer and is suitable for seed collection in autumn: Tainan 6 adapts to the high temperature and humid environment in Taiwan. As an orchard covering cultivation, the sowing period is from early February to early July, sowing once a year. Autumn is suitable for seed collection in the south of China to increase land use efficiency.

5. It is suitable for green manure cultivation in the positive and fallow period of water and dry land: Tainan No. 6 has high nutrient content, spring growth period is 80 days, fresh grass yield is 35000 kg per hectare, hay yield is 5887 kg, plant nutrient content is 171kg nitrogen, 8kg phosphorus, 120kg potassium, 37kg calcium and 23kg magnesium. The growth period of summer cropping is 80 days, the fresh grass yield and hay yield are 25467 kg and 3963 kg per hectare respectively, and the nutrient contents of nitrogen, phosphorus, potassium, calcium and magnesium are 128kg, 7kg, 84kg, 24kg and 14kg, respectively. And the mulching period is long, so it is the best green fertilizer and long-term mulching crop in paddy and dry land.

Third, sowing method

1. Orchard mulch cultivation:

Before sowing, clean up the weeds in the orchard and sow the seeds at a distance of 1 meter from the trunk of the fruit tree, using a small medium-tillage seeder or manual method. Strip sowing, the row spacing is 60 cm, and the thickness of the soil cover should not be too deep.

two。 Green manure cultivation:

The main results are as follows: (1) Upland cultivation, after harvest, soil preparation, evenly sowing the seeds in the field, ploughing and covering the soil, or directly using machinery for border sowing.

(2) in paddy field cultivation, the seeds were spread evenly on the day before rice harvest, and the rice stalks were harvested the next day and covered with seeds, which could save the cost of soil preparation. The method of seed propagation and sowing: after soil preparation, it is directly cultivated in the bed by machinery. the thickness of the covered soil is 2cm, which should not be too deep.

IV. Other matters needing attention

1. The quality of seeds is related to the germination rate and the initial growth potential of seedlings, so it is necessary to ensure that the seed germination rate is more than 90% before planting, and the seed sowing rate should be increased if the germination rate standard is not reached, so as to achieve the effect of early mulching.

two。 Only by keeping the orchard or field moist during sowing can we increase the unearthed rate of seeds, increase the effect of field mulching and inhibit the growth of weeds.

3. The seed of Tainan No. 6 is small, and the soil cover should not be too deep after sowing, so as to avoid great resistance to the emergence of young embryo stems and cotyledons, which will affect the germination rate. the ideal depth of soil cover is 2cm and 5cm.

4. Tainan No. 6 grows 50 to 60 days after sowing, and its stems and leaves can fully cover the rows of the orchard.

Cultivation methods and matters needing attention

I.

Extension area: according to the experimental results, Tainan 6 is suitable for inter-row mulching cultivation of orchards in Tainan, Chiayi and Yunlin counties or flood and dry fields as green manure cultivation and autumn planting in Tainan county.

II.

Use, sowing time and density.