Heinong 41 (soybean)

Heinong 41 (Ha 91-6045 >) was bred by advanced high light efficiency breeding technology adopted by Heilongjiang Academy of Agricultural Sciences. The original air-dried seeds of Heinong 33, No. 87-3, were treated with 60Co8000 Roentgen in 1987 and bred according to the procedure and method of soybean breeding with high light efficiency.

The plant of Heinong 41 is tall and tall, with a height of 95cm and 100cm, convergence of plant type, branching ability, sub-limited pod-setting habit, uniform upper and lower pods, white flowers, gray hairs, lanceolate leaves, more than three or four pods, 100-grain weight 1820 grams, round seeds, seed coat thick yellow, navel yellow, high quality appearance. The growth days are 120-123 days, the active accumulated temperature is 2628.8 ℃, the root system is well developed, the culm is strong, it prefers fertilizer and water, does not crack pods, has strong stress resistance, medium resistance to gray leaf spot, and higher complete grain rate than resistance to aphids and heart-eating insects. It has good photosynthetic physiological characteristics, belongs to a uniform main stem type, and has an ideal photosynthetic ecotype. From 1992 to 1994, the average photosynthetic rate of R4 was 17.64 μ mol (CO2) / (m 2 s), which was 8% higher than that of high light efficiency germplasm Ha 79-9440, 20% higher than that of standard variety Heinong 37, 290.5 μ mol (CO2) g fresh weight, and 12% higher than that of standard variety Heinong 37. This variety has the performance of high, stable and high yield. In the regional trial of the first region of Heilongjiang Province from 1996 to 1998, the average yield at 16:00 was 2780.46 kg / ha, 10.2% higher than that of the standard variety Heinong 37, and participated in the production test in 1998. the average yield was 3143.7 kg / ha, 11.39% higher than the standard variety Heinong 37. The highest yield in the regional trial was 4000 kg / ha in Acheng original seed Farm in 1997, which was 17.1% higher than that of the standard variety Heinong 37. It has the yield potential of more than 300 kg per mu. In 1998, the yield was 353.91 kg per mu in the plot of crop Institute of the Academy of Agricultural Reclamation Sciences.

The variety is a high-fat variety, with a fat content of 22.7% and a protein content of 37.8%.

Soybean Institute of Heilongjiang Academy of Agricultural Sciences

Regional and technical Heinong 41 is suitable for the first accumulated temperate zone and the second accumulated temperate zone in Heilongjiang Province. Because the maturity is 3-5 days earlier than that of the standard variety Heinong 37, and it is a high-fat and high-yield variety, it can replace the planting area of Heinong 37 and has a broad prospect of popularization. The main points of planting are as follows:

1. Select stubble, corn and other stubble to avoid repeated stubble. If the right stubble can not be selected, priority should be given to the following stubble land and the plot with good basic fertility of the previous stubble. Select the black soil plot that turns ridges in autumn or loses the stubble deeply and fertile, and suppresses it in early spring to keep the moisture to reach the state of waiting for sowing. In the deep ploughing and deep loosening foundation land, the corn stubble prepared in spring was stirred and suppressed by summer ridges or cleaned in early spring, and the stubble pit was leveled out to reach the state of waiting for sowing.

two。 Scientific fertilization applies 1500 kg of high-quality agricultural fertilizer per mu (organic matter content 8% > as base fertilizer, combined with soil preparation. The seed fertilizer is 7.5-10 kg per mu of diammonium phosphate and 2.5 kg of potassium sulfate, and the mixture of them is evenly put into the fertilizer box. With sowing at the same time, the seed fertilizer should be applied deeply on the side, 5-7 cm from the seed.

3. Qualified soybean seed coating agent was used for seed coating in seed treatment.

4. Sowing (1) sowing date: it is required to finish sowing from April 25 to May 5. Carry out seed cleaning to ensure the quality of sowing and ensure that the seedlings are uniform, complete, uniform and strong. (2) sowing method: precision-on-demand sowing of double-striped seedlings on 70cm ridge, uniform precision-on-demand with ZBT-II seeder, small row spacing of 10cm / 12cm or hole sowing on ridge (hole spacing of 15cm / 18cm, 4 plants per hole, ZBT-II was changed into corn tray for debugging). The sowing amount per mu is 4 kg. (3) sowing density: adopt the technical route of medium population, strong individual and high harvest index to establish a reasonable population structure. The sowing density is 270000 ~ 280000 plants / ha, and the podding stage density is 240000 ~ 250000 plants / ha. (4) weeding in mid-ploughing, irrigation and fertilizer spraying: deep loosening of ridges and furrows before shoveling soybean arch soil. Carry out three shovels and three times. Take the grass once in the first ten days of August. Chemical weeding, the mixture of Acetochlor and sulfuron-methyl must be applied before emergence after sowing, to master soil moisture and to ensure the effect of weeding. If there are irrigation conditions, in soybean pod stage, sprinkler irrigation and other water-saving irrigation techniques, one time to increase flower and pod water, and one time to increase grain weight water at the early stage of seed filling. During the flowering and podding stage of soybean, 50 grams of potassium dihydrogen phosphate per mu and 25 kilograms of water were sprayed. Or foliar fertilizer spraying with other growth regulators with the effect of increasing production.

5. The prevention and control of diseases and insect pests is determined according to the forecast of diseases and insect pests in the growth period of soybean. Spray control with 35 grams of omethoate and 30 kilograms of water per mu. Thrips, red spiders and aphids were fumigated with dichlorvos on August 15-20. Heart-eating insects were evenly distributed in the field with 135 grams of 8% dichlorvos EC per mu, dipped in 40 sticks. If there are irrigation conditions, in soybean pod stage, sprinkler irrigation and other water-saving irrigation techniques, one time to increase flower and pod water, and one time to increase grain weight water at the early stage of seed filling. During the flowering and podding stage of soybean, 50 grams of potassium dihydrogen phosphate per mu were sprayed with 25 kilograms of water or other growth regulators with yield-increasing effect.

6. Timely harvest soybean plants are harvested when 80% to 90% of the leaves fall off and the beans return to the garden and ring the bell. Single single harvest to ensure a bumper harvest.