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Raising cotton seedlings in foam tray substrate with hydroponics gives higher returns
The widely promoted F1 hybrid cotton variety Ezamian No. 10 was selected to compare the cultivation effects of plastic soft-tray substrate seedling raising, foam tray substrate hydroponic seedling raising, and fertile-soil nutrient bowl seedling raising. The results showed that on alluvial fluvo-aquic soil in the Wuhan area, with cotton planted in continuous cropping with rapeseed, the net income per unit area was highest with foam tray substrate hydroponic seedling raising, followed by plastic soft-tray substrate seedling raising. Therefore, matching cotton varieties with simplified, light-labor cultivation techniques selected according to local conditions and promoting them together can improve the profitability of cotton growing.
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How to grow azaleas hydroponically? Hydroponic methods and care tips
Soilless cultivation is characterized by replacing soil with an artificially made substrate. The Hunan Provincial Forestry Research Institute used a solid substrate for soilless cultivation of azaleas and achieved very satisfactory results. The variety was the summer azalea (Rhododendron); under soilless cultivation the crown structure was compact, the flowering amount was abundant; the flower diameter was large, and there were few pests and diseases. It not only improved flower quality, but also greatly reduced heavy physical labor, and is a cultivation method worth vigorously promoting. 1. Preparation of the substrate: Azalea roots are very fine, requiring a loose substrate to facilitate aeration and drainage. Use 1 part vermiculite,
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Why do the leaves of the purple magnolia (Magnolia liliiflora) wither and drop?
A reader from Tianjin wrote in to ask: 4 years ago I bought 2 grafted purple magnolias (Magnolia liliiflora). They used to grow fairly well, but starting last year, yellow leaves appeared while they were overwintering in the flower cellar, and later this gradually developed into half of each leaf scorching and dropping off. After they came out of the cellar this May, the newly sprouted leaves soon turned half-withered and dry, and it was even worse from July to August. I originally thought it was caused by fungi, but applying fungicide had no effect. May I ask what is causing this? What rescue measures should be taken? Answer: The withering and dropping of your purple magnolia leaves may be caused by the following aspects: First,
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New water dropwort variety successfully bred in Hubei
The new water dropwort variety "Eshuiqin No. 1", bred by the Wuhan Vegetable Research Institute (postcode: 430065, tel: 027-88116313), recently passed variety certification in Hubei Province. The variety has a plant height of 45-50 cm, 5.0-5.5 leaves per plant, strong adaptability, a crisp texture and a strong aroma. Every 1 kg of fresh product contains 82.04 mg of vitamin C and 0.93 g of crude fiber. The yield per 667 sq m (1 mu) reaches 3200-37
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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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Causes of Leaf Drop in Bonsai Ficus in Northern Cultivation and Preventive Measures
Ficus (Ficus microcarpa L.) is an evergreen ornamental plant of the Moraceae family, generally grown as bonsai in the north. Its leaves are bright green, its branches and trunk are vigorous and rugged, and its forms are endlessly varied; the coiled and twisting aerial roots in particular give a sense of antiquity, desolation and richness. It is an excellent bonsai plant. However, bonsai ficus grown in the north always drops its leaves, seriously affecting its ornamental effect. The author has investigated this for many years, analyzed the causes, and summarized preventive methods. 1 Causes of leaf drop Leaf drop of bonsai ficus in the north can be divided into two
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What to Do When a Ficus Bonsai Drops Its Leaves? A Detailed Guide to Prevention and Treatment
When a newly purchased healthy ficus drops its leaves, it is mostly due to insufficient nutrition and a hidden decline in tree vigor, triggered by sudden changes in its habitat (such as temperature, humidity, light, etc.). If a long-cultivated potted plant drops its leaves, factors such as soil nutrient deficiency, alkalization, or pests and diseases should also be considered. For this situation, we can summarize the prevention and treatment measures as follows: 1. When purchasing, choose a healthy, long-potted plant with spreading leaves, deep green and glossy, and free of pests and diseases on the whole plant, and the growing medium should be loose, fertile, and airy. 2. Place it in a relatively bright indoor spot, with the temperature between 10°C and 30°C and with little fluctuation
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What disease causes geese to die quickly after passing green droppings?
Ma Yonggen from Qinxing Village, Zhenze Town, Wujiang City called to say that he had raised more than 400 geese. When the geese weighed three to four jin, he found that several geese were lying down unable to stand, passed green droppings, and died quickly. Within two days, 6 had already died, and several more geese had also shown symptoms of lying down and looked like they were failing. The local veterinarian diagnosed it as a septic infectious disease. Based on the above situation, the geese may have viral enteritis or fowl cholera. Both diseases have symptoms of passing green droppings and rapid death. Which specific disease it is should still be further diagnosed.
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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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Why do rabbits eat their own soft droppings?
In the process of raising domestic rabbits, we see that the hard fecal pellets they excrete are formed through a second round of digestion. Domestic rabbits eat grass and feed during the day, and excrete soft droppings at night or before dawn, and as soon as the soft droppings are excreted, they immediately eat them, and only through the second round of digestion and absorption are the residues formed into hard fecal pellets and excreted from the body. When domestic rabbits eat the soft droppings they excrete at night, it is not coprophagia caused by a lack of some nutrient in their body, but a normal physiological phenomenon. This instinct of domestic rabbits has two major benefits: first, it can keep the rabbit hutch and rabbit farm
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