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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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Master the correct method when earthing up ginger to avoid damaging the roots
Ginger needs to be earthed up several times during its growth period. It is understood that the mechanical earthing-up machine used locally in Anqiu causes more serious root damage to ginger than manual earthing up, because the furrow bottom formed by the earthing-up machine is about 20 cm wide and the ridge height is 40 cm, while manual earthing up with a hoe leaves a furrow bottom of about 10 cm and a ridge height of around 35 cm. "When the earthing-up method cannot be changed, excessive root damage can be avoided by adjusting the growth direction of the underground ginger tubers, that is, when sowing the seed ginger, deliberately place the seed ginger perpendicular to the planting row, so that the daughter ginger and granddaughter ginger are also perpendicular to the planting row. By the time of earthing up, the entire ginger tuber is then perpendicular to the planting row, while the fleshy roots, lateral roots and fibrous roots caused by earthing up extend along the direction of the planting row, so they will not be damaged too much during earthing up. If the underground seed ginger is sown parallel to the planting row, too many roots will be damaged during earthing up." said Liu Shinian of Qianyulin, Linghe Town, Anqiu City.
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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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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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A Detailed Guide to Managing Wheat Seedlings Before Winter by Leaf Color
1. Causes of yellow leaves in wheat seedlings and their management. First, soil drought, which mostly occurs in wheat fields with insufficient subsoil moisture or where moisture escapes through cracks in the soil. Its characteristics are slow tiller emergence, grayish-green leaf color, short and small heart leaves, slow or stalled growth (known as "shriveled-heart seedlings"), gradual yellowing and drying of the middle and lower leaves, and few, thin roots. The key management point is to apply 15 kg of ammonium bicarbonate per mu along with irrigation. Second, nitrogen deficiency, in which seedlings are thin and weak and grow upright, tillering is reduced, leaves are narrow and short, and the lower leaves gradually turn yellow and dry starting from the leaf tips and progressing upward. The key management point is to use urea per mu
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Detailed Explanation of Grading and Packaging Standards for Button Mushrooms (Agaricus bitorquis)
Quality Standards Basic quality requirements: fresh and clean, free of abnormal odor or taste, free of abnormal foreign moisture, carefully picked, fully developed, with maturity suitable for market or storage requirements. Special grade: same variety, excellent shape and color, cap not opened, with the inherent color of the variety, no water damage, no rot. Grade I: same variety, normal shape and color, cap not opened, with the inherent color of the variety, no water damage, no rot, no pests or diseases or other damage. Grade II
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Packaging Methods and Technical Points for Cut Chrysanthemums
When cut chrysanthemums are transported over short distances or in small quantities, they usually do not need packaging and can be sent directly to the flower market; however, for long-distance transport, especially cross-border export of cut flowers, packaging is essential. When cut chrysanthemums are transported over short distances or in small quantities, they usually do not need packaging and can be sent directly to the flower market; however, for long-distance transport, especially cross-border export of cut flowers, packaging is essential. The packaging of cut chrysanthemums follows the general principles of cut flower packaging: (1) protect the product from mechanical damage, and
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Fish heads contain substances that can fight against human aging
Professor Wang Cunxin, a fish research expert at the Institute of Oceanology, Chinese Academy of Sciences, says that fish brains contain a kind of fish oil needed by the human body, and fish oil is rich in highly unsaturated fatty acids, whose main component is what we call "brain gold." This is an essential nutrient for humans, mainly present in the phospholipids of the brain, and it can maintain, enhance and improve brain function. If intake is insufficient, the brain development process of infants will be hindered. Therefore, there is a saying that eating more fish heads can make people smarter. Professor Wang says that other parts of the fish head have no special nutritional
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How should the most eco-friendly zongzi packaging be designed, and what eco-friendly packaging materials are there?
Zongzi - the most eco-friendly packaging design
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