How to grow summer radishes for high yields? Practical growing tips to share
How can summer radishes be grown for high yields? Please explain the growing method. To get a high yield when growing summer radishes, you can refer to the following growing methods: 1. Choose good varieties. Selecting the right improved variety is the prerequisite for getting high quality and high yields from over-summer radishes. Therefore, when cultivating radishes in the high-temperature seasons of midsummer and early autumn, you must choose heat-tolerant...
How can summer radishes be grown for high yields? Please explain the growing method
To get a high yield when growing summer radishes, you can refer to the following growing methods:
I. Choose good varieties
Selecting the right improved variety is the prerequisite for getting high quality and high yields from over-summer radishes. Therefore, when cultivating radishes in the high-temperature seasons of midsummer and early autumn, you must choose early-maturing varieties with good heat tolerance and strong stress resistance.
II. Apply enough base fertilizer
Early-maturing radishes have a short growing period and relatively high nutrient requirements, so apply enough base fertilizer while preparing the land. Base fertilizer should account for 70% of the total fertilizer applied; per mu, you can apply 4000 kg of fully decomposed farmyard manure and 30-40 kg of compound fertilizer. Radishes should be grown on deep furrows and high beds, with the bed height at 25-30 cm.
III. Sowing and raising seedlings
When cultivating radishes in over-summer and early autumn, you can sow in batches from May to August according to market demand during the summer-autumn off-season. Sowing methods include dibbling and broadcasting, which can be chosen reasonably according to the variety type. Large-fruited varieties should be dibbled, with a plant spacing of 20 cm and a row spacing of 35 cm; the sowing holes should be shallow, and after sowing cover the seed with fine soil. Small-fruited varieties can be broadcast, and after thinning keep a plant spacing of 6-12 cm. After sowing, the bed surface can be covered with rice straw to prevent sunscald and reduce heat, prevent heavy rain from washing the soil, and reduce the loss of fertilizer and water. You can also cover the bed surface with shade netting, which helps achieve full emergence; after the seedlings emerge evenly, remove it in time to avoid pressing the seedlings or causing them to become spindly and weak. Note that during the seedling stage, thinning must be done early and final thinning late. After the seedlings emerge, they grow rapidly; when the seedlings have 1-2 leaves and 3-4 leaves, thin them once each time, and when the seedlings reach the 5-6 leaf stage, do the final thinning.
IV. Fertilizer and water management
Radishes need a relatively large amount of water, and the amount of water is closely related to yield and quality. Too much water makes the radish skin rough and also easily causes root cracking and rot; lack of water during the seedling stage easily leads to viral disease. When fertilizer and water are insufficient, the fleshy root of the radish is small and lignified, with a strong bitter and pungent taste, and it is prone to pithiness. In cultivation, water should be supplied evenly according to the characteristics of each growth stage of the radish and its water needs; never let the soil alternate between dry and wet. After sowing, water thoroughly, and after most seeds have emerged, water once more to help achieve full emergence. After planting, the seedlings quickly enter the peak leaf growth stage, so water moderately. In the late stage of vegetative growth, control water appropriately to prevent excessive leaf growth from affecting fleshy root growth. When the plant has 12-13 leaves, the fleshy root enters the rapid growth stage; at this time, fertilizer and water supply should be sufficient, and watering should be flexible according to weather and soil conditions. After heavy rain, drainage must be done promptly to prevent excess water from waterlogging the roots, causing root cracking or root rot. In hot and dry seasons, insist on watering in the evening; never water at noon, to prevent tender leaves from wilting and the fleshy root from rotting. Stop watering 7 days before harvest. Radishes also have special requirements for nutrients; boron deficiency can make the fleshy root turn black and become pithy. During the fleshy root swelling stage, appropriately increase potassium fertilizer; from emergence to final thinning, apply additional seedling-protecting fertilizer as needed; when the seedlings have 2 true leaves, apply a small amount of fertilizer; after the second thinning, apply fertilizer once together with intertillage and weeding. During the period from "breaking white" to "showing shoulder" of the radish, carry out the second topdressing, and afterward topdress according to seedling growth. It should be noted that topdressing should not be applied too close to the fleshy root, so as not to burn the roots. Intertillage and weeding can be done together with irrigation and fertilization; intertillage should be deep first and then shallow, near first and then far, and stop intertillage after the rows close.
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