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Why does a tree rose (standard rose) bloom little?
A tree rose refers to a single-stem, tree-like arbor form of rose produced through artificial horticultural techniques, giving it a trunk and a crown, and it retains the rose's characteristic of blooming profusely. However, after many tree roses are planted, they not only fail to retain the rose's profuse-blooming characteristic, but may even fail to bloom at all. Based on years of observation, study and exploration of tree roses, the author summarizes the reasons as follows. 1. Insufficient light and poor ventilation. As everyone knows, the rose is a strong sun-loving flower, and tree roses are no
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What level does a cotton single boll weight of 8 grams represent?
1. Large bolls: The average single boll weight of this variety is 8 grams, with the largest single boll weighing 9.2 grams. Lint percentage is 41.5%, and seed index is 11.1 grams. 2. Good emergence: The seeding rate for this variety is 400-500 grams per mu, with strong germination vigor, good emergence, and uniform, vigorous seedlings. 3. Strong growth: The growth period of this variety is about 128 days, with medium-sized leaves and good ventilation and light penetration. Plant height is 105 cm, the cotton plants are clean, and the fruiting branches have strong outward extension ability. Cotton bolls are evenly distributed on the lower, middle, and upper parts of the plant and on the inner and outer periphery, and boll weight is consistent. 4. Good resistance: This variety is highly resistant to cotton
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What effect does light have on the growth and health of pigs
Lighting in pig houses can be divided into natural lighting and artificial lighting according to the light source. Natural lighting refers to direct sunlight and scattered light entering the pig house through light-transmitting structures such as doors and windows for illumination. In the solar spectrum, visible light accounts for 50%, and most of the remaining 50% is infrared light, with a small amount being ultraviolet light. Natural lighting in a pig house is generally expressed as the ratio of the total light-transmitting area of the pig house to the floor area inside the house, which is called the lighting coefficient. Artificial lighting uses artificial light sources (incandescent lamps or fluorescent lamps, etc.) for illumination. In the spectrum of incandescent lamps, infrared accounts for 60%
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How does the rice variety Xindao 97203 perform?
This variety was developed in 1997 by crossing Yujing 6 with Xindao 89402. Characteristics: moderate growth period, maturing more than 10 days earlier than Yujing 6; when grown as a wheat-stubble rice in the Yellow River rice region, the full growth period is about 140 days. Good plant type, leaves held upright, panicles erect, plant height about 100 cm. Strong tillering ability, high panicle-setting rate, 230,000-240,000 panicles per mu, 100-110 grains per panicle, 1000-grain weight 25 g-26 g. High yield; in the early-maturing group variety comparison, average yield per mu
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Detailed Explanation of Key Management Techniques for Does During the Breeding Period
After the beginning of autumn comes the breeding, gestation and lactation period for does, and artificial rearing management must be tracked in place from beginning to end to ensure the economic benefits of artificial deer farming. 1. Organizing the doe herd before mating. Before mating, does that are infertile, have vicious habits, are too old, or have serious diseases and no breeding value should first be removed from the herd. And according to blood relationships, age groups and health conditions, etc., form a breeding core herd, a general breeding herd, and a first-mating doe herd. A breeding group should preferably consist of 15 to 30 does. The body condition of does
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Why does Schisandra chinensis experience flower and fruit drop?
I. Flower drop caused by herbicide damage. (1) Symptoms: In spring, newly grown functional leaves curl; in severe cases, the leaves turn black, wither and fall off. When herbicide drift damage occurs during the flowering period, the petals wilt and drop early, pollen viability declines or the pollen dies, pollination becomes difficult, and flowers fail to set fruit; (2) Cause: damage from 2,4-D butyl ester herbicides; (3) Preventive measures: (1) It is recommended to use 2,4-D isooctyl ester instead of 2,4-D butyl ester. (2) If symptoms are found, spray with Kompo Kaipuke 500-fold fulvic acid foliar fertilizer. II. Flower and fruit drop caused by low temperature and freezing damage
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What ecological characteristics does Lycoris radiata have? A comprehensive analysis of its growth habits
Lycoris radiata, also known as cockroach flower and crow garlic, is a perennial herbaceous flower with persistent roots belonging to the Amaryllidaceae family. It is native to China south of the Qinling Mountains, and is most commonly found in the Yangtze River basin and the southwestern region. It mostly grows in cool, damp rock crevices containing humus, prefers fertile and moist soil, is cold-tolerant, and requires good drainage. It propagates by bulbs, and division replanting is best done once every 3~4 years. When planting, break off the daughter bulbs beside the mother bulb by hand or cut them off with a sharp knife for division replanting. After planting, keep the soil moist; do not water too much, so as to prevent the bulbs from rotting. Before sprouting, topdress
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How Does the San Jose Scale Spread? A Full Analysis of Control Measures
I. Distribution and Damage The San Jose scale (Quadraspidiotus perniciosus) in the Korla region mainly damages pear, apple, apricot, peach, hawthorn, grape, and white poplar, among other fruit trees and forest trees. The insects cluster densely on the branches and trunk in the upper canopy and inner part of the crown, with more on smooth-barked areas and the sunny side. Population density is highest on 2- to 5-year-old branch sections, and on 1-year-old branches they mainly gather around the bud bases. The San Jose scale sucks the sap of branches, leaves, and fruit as female adults and nymphs. Young branches and leaves dry up and fall off after being damaged; damaged fruit develops purplish-red
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What kind of growing environment does oleander like?
It likes sunny, warm and humid environmental conditions. It is relatively cold-tolerant, slightly shade-tolerant, slightly alkali-tolerant, tolerant of drought and poor soil, and intolerant of waterlogging; it has a certain resistance to toxic gases such as smoke and dust and sulfur dioxide. It is suitable for growing in fertile, loose, well-drained slightly acidic to slightly alkaline soil. Light and temperature: potted oleander needs to be brought indoors to overwinter, with the room temperature kept above 5°C, placed in a spot by a window with full sunlight. Generally it is moved into the greenhouse around October 20 and moved out of the greenhouse around April 20. After being moved out, it should first be placed in a wind-sheltered, sunny spot, then gradually
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Why Does Schisandra Drop Its Flowers and Fruit? Causes and Control Methods
I. Causes of flower and fruit drop 1. Low-temperature freezing damage causes flower drop. In some areas of the east, the last frost period occurs in mid-May, and cold air masses cause physiological chilling injury, causing some flower buds to drop. 2. Herbicide drift causes flower drop. Field herbicides are mostly used in late April and early May, which is exactly the flowering period of Schisandra. Herbicide drift directly damages Schisandra petals, preventing female flowers from pollinating normally and causing flower drop. 3. Pests and diseases cause fruit drop. The main diseases are root rot, leaf blight, and powdery mildew, which cause fruit drop when they occur severely;
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