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A Detailed Guide to Fertilizing and Managing Roses
How should roses be fertilized and managed? Please give guidance. Rose fertilization varies by season; 25% in summer and 12.5% in winter is suitable. Various nitrate-nitrogen and ammonium-nitrogen fertilizers can all be used, but urea is not suitable, especially on clay soil, because urea raises the soil pH. Rose fertilization...
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A Detailed Guide to Identifying and Managing Poplar Canker Disease
The typical symptoms of poplar canker disease fall into two types: the canker type and the dieback type. In the early stage of the canker type, brown circular or oval, water-soaked or blister-like lesions appear on the bark of the affected trunk; pressing them by hand causes liquid to ooze out, and after the blisters rupture, a liquid with a distiller's grains odor flows out. The diseased area then shrinks and collapses into a canker lesion, and the cortex at the lesion turns brown...
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Detailed Explanation of the Key Technical Points for Cultivating and Managing Impatiens walleriana
Cultivation and Management Techniques for Impatiens walleriana
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Detailed Explanation of the Key Technical Points for Cultivating and Managing Spray Chrysanthemums
Chrysanthemums are one of China's ten traditional famous flowers. They can be grown in a wide range of regions, with many varieties, abundant flower colors, and changeable flower forms. They bloom proudly in the frost of late autumn when hundreds of flowers have withered, and they have high ornamental value. Potted spray chrysanthemums, in particular, are deeply loved by people because of their compact plant shape, neatly arranged flowers, and ability to display varietal characteristics. How to grow spray chrysanthemums well - technique is the key. 1. Potting soil preparation. How well chrysanthemums grow and how they bloom is closely related to potting soil preparation. Chrysanthemums dislike waterlogging and tolerate drought, like a certain amount of fertility, and cannot tolerate excessive fertility.
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What are the methods for managing yew seedlings?
The methods for managing yew seedlings are: 1. Seedling overwintering management: seedlings are afraid of frost, so in winter they must be protected in an arched shed to keep them warm, and covering the plastic film with straw curtains is even better. 2. Seedling transplanting and hardening: after 1 year of cultivation, both seed-grown seedlings and cutting-grown seedlings should be transplanted for hardening; transplant the seedlings into open-field seedbeds at a spacing of 25 to 30 cm between plants and rows, build a 1.5 m high shade shed with six parts shade and four parts light, water frequently, and when the seedlings turn yellow, apply diluted urea water or light manure water as a top dressing to cultivate strong seedlings.
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What are the key technical points for tending and managing Korean pine (Pinus koraiensis) seedlings?
The tending and management of Korean pine (Pinus koraiensis) seedlings is as follows: the emergence period of Korean pine takes about 20 to 30 days. When the temperature is above 16°C, germination is most vigorous. Attention should be paid to watering to prevent drought, and to preventing damage from birds pecking. During the seedling stage, roots grow relatively fast; the main root can reach 10 cm long, accounting for about 40% of the annual growth, and can produce 4 to 5 lateral roots. However, the height growth of the seedlings is very small. Therefore, the resistance of the seedlings is very poor. Attention should be paid to watering to lower the temperature, preventing sunscald, and timely topdressing and loosening the soil and weeding. From the time Korean pine seedlings form terminal buds until the growth rate declines, it lasts about
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Detailed Explanation of Key Technical Points for Planting and Managing Cut Lily Flowers
① Time: It depends on the desired flowering period. In principle, it can be planted at any time of the year. However, it is best to avoid the hot summer season. When the temperature is relatively high, planting should be done in the evening, with artificial ventilation, shading, and cooling, etc., to ensure that the soil temperature is not too high, preferably with the soil temperature at a depth of 5 cm below 20°C. ② Planting method: open furrows and plant at points. In summer: first open furrows and plant the bulbs at points, then water and cover with soil; in winter: first open furrows, water, then plant at points, and cover with soil. ③ Density: generally 40 per sq m, varying according to variety
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