Purple, white and gold are layered, and it is a beautiful pastoral landscape

How to scientifically sow seeds to achieve purple, white and gold layers, but also a beautiful pastoral landscape

Liao Chuanli

Astragalus is a wintering herbaceous crop with a well-developed root system, thick main root, many lateral roots, and many rod-like or fan-shaped nodules on the roots; suitable for sandy loam or clay loam soil, soil pH 5. 5～7． 5. Prefer warm and moist, medium cold resistance, poor drought tolerance, but avoid water accumulation during growth and development.

1． Seed treatment Astragalus should be seed treated before sowing. Seed drying: Before sowing, select sunny days to dry seeds for 1 to 2 days, and spread evenly and diligently when drying seeds, so that the degree is consistent. Rub seeds: mix 1 per 10 kg of seeds. 5 kg of fine sand, beat 1 to 2 times with a rice mill, the seeds can be slightly heated; you can also mix the seeds and fine sand according to the ratio of 2:1, put in a woven bag and knead, with appropriate strength to avoid scratching the seeds. This can cause the waxy layer on the seed coat of Astragalus to be scratched, which is conducive to water absorption and germination after sowing.

2． Scientific sowing

The appropriate temperature for the germination of astragalus seeds is 15 °C to 25 °C, and it is generally sown from late September to early October. Per 667 square meters of seed 1. 5 to 2 kg, sowing must be quantitative according to the field, even sowing, even planting, falling seeds evenly. In addition, every 667 square meters of seeding can also be refueled vegetables and 100 grams of full garden flower seeds, which is often referred to as three-flower mixed sowing. The cultivation of three flowers is mainly based on purple cloud ying, supplemented by rape flowers and garden flowers. Rapeseed and garden flowers are tall, and the "protected" purple cloud green manure yield is high. During the flowering season, the stars of purple clouds and flowers are hidden under a golden canola flower, and the purple, white and golden layers are clear, which is a beautiful pastoral landscape.

3． Open three ditches During the growth period, Ziyunying is afraid of both flooding and drought. Open the gutters, owls and waist grooves according to the standard before sowing: the width of the compartment is 2. 7 to 3 meters, the width of the ditch is 24 cm, the depth is 30 cm, the ditch and the waist ditch are 30 cm wide, the depth of the ditch should break the bottom of the plough, so that the ditch is connected, and the drainage and irrigation are free.

4． Field management (1) drought resistance and stain prevention to preserve seedlings. In case of drought weather after sowing, it is necessary to irrigate "running horse water" once to keep the field moist. (2) Stubble. When cutting rice, 25 to 30 cm long stubble should be left in order to have a certain shade and field humidity, otherwise the seedlings of Astragalus are prone to redness. (3) Apply seedling fertilizer before winter. Generally, after the emergence of seedlings, 250 to 300 kg of thin manure water is watered every 667 square meters, making full use of the warm light conditions before winter to accelerate the growth of seedlings. (4) Apply wax fertilizer to prevent frost damage. In early to mid-December, 400 to 500 kg of soil fertilizer plus 25 to 30 kg of calcium superphosphate was applied per 667 square meters. Increasing the application of calcium superphosphate is an important yield increase measure for raising large fertilizers with small fertilizers and cannot be ignored. (5) Apply spring fertilizer to promote spring hair. After the beginning of spring, 2 to 4 kg of urea are applied per 667 square meters, and the seedlings are applied to promote balanced growth and build a shelf for abundant production. Foliar spray 0. 2% borax solution 2 times, can increase fresh grass yield by 20%. (6) Control of diseases and insects to ensure abundant yields. Astragalus mainly has aphids, leafminer flies, sclerotia and other diseases and insect pests, which should be sprayed in time to prevent and control. (7) Nitrogen fertilizer should not be applied to the field, and about 10 kg of calcium superphosphate and 10 to 15 kg of grass and wood ash can be added per 667 square meters, which can improve seed yield and quality.

5． Harvest the purple cloud ying as a plough at the right time, and must be harvested at the right time. Astragalus is generally more suitable for turning at the peak flowering stage, with a green pressing volume of 1000 to 1500 kg per 667 square meters, and the high yield can be adjusted to other fields. When most of the seed pods are matured, they should be harvested in time, harvested too late, and the seeds are over-ripe to cause germination degradation, which often causes early flowering of offspring, and the pods are easy to burst to make the seeds fall off, and the yield is reduced.