1. Location
1. Choose sandy loam soils that are easily irrigated.
2. The border should be made as high as possible, covered with mulch, and raised to the ground temperature.
2. Sowing preparation
1. Radish is a taproot crop, in order to reduce the occurrence of bifurcation and promote root hypertrophy,
To prevent the hazards of soil drying must be deep plowing.
2. 15 days before sowing, apply cooked chicken manure or organic fertilizer and till the land once.
3. 2 to 3 days before sowing, according to the fertility of the soil, apply N.P.K.B fertilizer after plowing
Ground broken soil.
4. In order to reduce the occurrence of rooting and divergent roots, deep plowing should be done after applying soil pesticides.
5. The border is 140cm wide, cultivated in two rows, and the planting distance is 60cm×25cm.
6. Practical fertilization essentials
The full amount of P.B fertilizer and fully cooked chicken manure is used as base fertilizer.
N.K fertilizer is divided into 2~3 times of top dressing
The location of fertilization: between the first tree and the tree, in the middle of the second border, and between the third border and the border, to avoid direct contact between the fertilizer and the roots.
7. Sowing: Sow 3 to 4 seeds per hole, cover with fine soil, and pay attention to keeping water. During the spring sowing period, the ground temperature should be kept above 10 ℃, and the ground mold should be covered. Raising the ground temperature is beneficial to germination and initial growth.
3. Fertility management
1. Germination and seedling stage management
① Moisture management: to maintain proper moisture.
② Prevention of pests and diseases: use pesticides to prevent various pests.
③ Thinning seedlings: When 2~3 true leaves grow, keep 2 per hole, and when 6~7 true leaves grow, keep one.
④ Temperature management: Bolting will occur if the temperature is lower than 12℃ for 15~20 days.
⑤ Others: When the true leaves are 6-7 in the late seedling stage, apply the first fertilizer to prevent the soil from being hard.
2. Management of leaf and root elongation period: During the period of vigorous growth, rapid water changes will lead to root cracking and other phenomena. Too much N fertilizer is easy to chaff.
Fourth, the reasons for the decline in commodity rates and countermeasures
1. Cause: Occurs when the growth point of the original root is damaged.
① There are obstacles such as stones and tree roots in the soil or the soil properties of each soil layer are very different or
Occurrence of application of immature compost.
② Application of fertilizers such as chemical fertilizers or immature compost, chicken manure and other fertilizers causes the growth of roots to be close to fertilizer
Occurs when the feed concentration is too high or the roots are topdressed.
(Note: This article is reproduced for reference only)