Technical elements
Key elements of core technologies and their supporting technologies
I. Selection of varieties
1. Corn varieties
Spring corn and autumn corn varieties should be selected for a tight or semi-climatic stock, a high school stock, a high-yield, drought-resilient species, such as green 700 and single 629。
2. Soybeans
(1) grand rock mountain region of guixi, south-west and north-west gui
It is advisable to choose shade-resistant, pre-cooked, stock-based, limited maturation, high-yielding and disease-resistant varieties. For example, spring soybeans should be selected for the 15th, 8th, and for the 3rd, 7th, etc。
(2) guinan, south-east, central hills of guiin
It is advisable to choose shade-resistant, pre-literate, stock-based, limited maturation, high-yielding and disease-resistant varieties. Spring soybeans are chosen for the 15th, 8th, and 15th, 8th and soybeans for the summer。
(3) cui-bein, north-east cui-cui hills region
The selections are shade-resistant, pre-literate, stock-based, limited maturation, high-yielding, disease-resistant varieties such as gui chun 15, hua chun 8, etc。
Ii. Grouping
1 between bands
The soybean corn belt is 60-70 cm, the corn line is 40 cm, the soybean line is 30-40 cm and the soybean corn line is preferred to the 3:2 and 2:2 models (2. 4 m/production unit)。
(1) spring soybeans between corn bands
Corn stands at 16-18 cm (32-36 cm and 2/cm) and soybeans at 20-25 cm and 2/cm。
(ii) summer soybeans in corn belts
Corn stands at 16-18 cm (32-36 cm and 2/cm) and soybeans at 20-30 cm and 2/cm。
(3) autumn soybeans autumn corn belt
Corn stands at 16-18 cm (32-36 cm and 2/cm) and soybeans at 20-25 cm and 2/cm。
2. Banded stock
Soybeans are 60 cm apart, corn is 40 cm apart, soybeans are 30-40 cm apart, and soybeans are preferred to 3:2 and 2:2. Corn stands at 16-18 cm (32-36 cm, 2/cm) and soybeans at 15-20 cm (30-40 cm, 2/cm)。
Iii. Sowning
Seed treatment
Corn uses high-efficiency, low-tox, insect-proof wrapping seeds and soybeans uses 62. 5 g/s of suspended clothing, etc., to plant clothing or blend。
2 period
(1) spring soybeans between corn bands
The soybeans are sowing at the same time. Cuennam planted seeds in mid-february, cain in late february to early march, and guiang in late march to early april。
(ii) summer soybeans in corn belts
Mid-july saw the planting of soybeans and acne corn, either simultaneously or first (with soybeans and maize production being higher than soybean and maize) and was completed。
(3) autumn soybeans and corn belts
Autumn soybeans were planted simultaneously. Done before and after the fall。
(4) spring corn summer soybean garbage
Precipient to the harvest of spring maize, around 15d, is free of cropping of summer soybeans, and after the harvest of spring corn, it is planted to form a banded complex。
3. Soil moisture
Soils remain about 70 per cent wet at seeding。
4. Sowing methods
Mechanized seeding or hand-on-demand planting depths of 3 to 4 cm。
Iv. Field management
1 shrimp management
(1) replantation
After seedlings are produced, seedlings are identified in a timely manner, seedlings, if any, should be replanted immediately, and when replanted, they should be soaked as to ensure seedlings。
(2) saplings
A small early morning approach is usually followed by a single completion of 8d-10d。
2. Chemical grass control
(1) before broadcasting
96 per cent of the precision alachlor cream in 2d after seeding may be used for closed weeding with 15 per cent compost of broad foliage and not recommended for use of alachlor. Closed weeding should be carried out after the rain in conditions free of wind and soil moisture and completed within 2d of the seeding。
(2) herbicide after seedling
In the case of corn, three to five leaves, sulfur (sulphuramine) + chlorofluorocarbons (cfcs), soybeans grow up to 2 to 5 spinach leaves, and are sprayed in the form of directed tubers, respectively, with euphemism + fluorine。
3. Water management
Water should be distributed in a timely manner to fields below 60 per cent during the birth period of maize, and soybeans should be irrigated during periods of flowering, gushing and drumping, and then pine soil should be ploughed in a timely manner. In the event of excessive rainfall, water should be drained in time. Soybeans corn can be irrigated at the same time when the soil lacks water。
4. Fertilizer management
In contrast to soybeans, which require high nitrogen and soybeans, they should be applied separately. It's all over the field。
(1) crop fertilization
Nitrogen fertilization in maize is equivalent to that applied in single cases. For the exclusive use of maize for the management of compound fertilizers, one-time fertilization is performed, followed up with a small amount of potassium nitrogen phosphorus and microfertilizers depending on the strength of the leaves. A total of 50 kg. 666. 7m2 or urea 15 kg. 666. 7m2, calcium perphosphate 30-40kg/666. 7m2, potassium chlorinated 15-20kg/666. 7m2; eight leaf periods of 15-20kg/666. 7m2 or urea 5-8kg/666. 7m2 for fertilizers between two rows of maize, and 30-35kg/666. 7m2 or urea 7-10-10kg/ kg/666. 7m2 for chlorinated potassium。
(2) fertilisation of soybeans
Non-fertilization of various fertilizers of summer soybeans; inter-band fertilizers, which, according to soil fertility, produce nitrogen 2-3kg)/666. 7 m2, are not recommended for fertilization in soil fertility; and primary flowering, when soybeans are small and small, can be combined with a fertilizer fertilizer fertilizer, which is applied in general urea 2. 5 kg/666. 7 m2, potassium chloride 5. 0 kg/666. 7 m2 or leaf fertilizer. Drum pellets are drought-ridden and leaf-faced microfertilizers are sprayed 2-3 times。
5. Prevention of disease and grass
Strict control of pesticide use and safety intervals to combat pests and diseases at the appropriate time. (c) to adhere to the “preventive approach, integrated treatment” approach. Priority is given to agricultural, biological, physical and scientific chemical control. Based on the occurrence patterns of soybeans corn belt complex cultivation pests, field pest survey monitoring is strengthened to capture accurately the dynamics of the disease and to enable timely detection and prevention. The harvest
Guangxi soybeans and maize varieties have different reproductive periods, with different patterns of cultivation, where intercropping or crop varieties can be harvested at the same time in very few cases, and combined belt-shaped cultivation is dominated by soybeans and maize。
V. Greenhouse access
1. Artificial harvesting
The soybeans are mostly yellow, 90 per cent of the soybeans become mature colours (specified colours) and can be harvested artificially when more than 50 per cent of the plants start to sound when they shake. Spring corn leaves are yellow, seed grains are hardened, breastlines cease to mature and can be harvested manually; when fall corn matures, the weather is dryer and the harvest can be delayed to increase seed abundance。
2. Mechanical harvesting
Soybeans can be harvested when they are nine years old, when the grain is ripe for maize (seeds are hardened, breastlines disappear). Soybean harvesters can choose a narrow-banded soybean soybean harvester or a full-fed cereal harvester, with a maximum width not greater than the maize bandwidth and a cutter at a height of less than 9 cm. After the soybean harvest, maize can be harvested either by a self-paced corn harvester or by full feeding into a grain harvester. Harvesters require skilled manual operation to avoid the loss of corn or soybean plantations that have not yet been harvested。
Attention
Elements that require special attention in technology diffusion applications
More rain in the spring, be careful to drain in time, harvest in time when the bean turns yellow, the seed grain returns to circle and the middle and lower leaves fall。
