-
Analysis of Common Problems in Potato Cultivation and Solutions
Yutian County has a perennial potato planting area of 70,000 mu, with yields generally around 2,500-3,500 kg per mu. Most potato growers have some experience and good methods in cultivation management, but overall, there are still many problems in potato cultivation management, which are summarized as follows. 1. Variety degeneration phenomenon: After continuous planting for several years, potatoes often show stunted plants, clustering, weak growth, wrinkled, smaller, and brittle leaves, or ring spots and streak spots, leaf veins turning dark brown, leaves easily falling off, and in severe cases the entire plant dies. Variety degeneration
-
What are the latest rice breeding technologies? A full analysis of the world's cutting-edge methods
Research on salt-tolerant rice breeding The aims of this research are: 1. To enable new salt-tolerant rice to adapt to cultivation in saline-alkali land. 2. To make full use of seawater irrigation when freshwater is scarce. Abroad, there have been reports of salt-tolerant crops such as tomato, melon and barley. Salt-tolerant rice bred by the University of Sussex in the UK can grow vigorously in the field, but the complexity of regulating salt content in the field must be recognized. Research on genetic engineering of salt-tolerant rice is quite active in the UK. Researchers insert genes from salt-tolerant rice into rice,
-
What to Do About Low Hatch Rates in Female Turtles? Cause Analysis and Solutions
Artificial turtle farming has sprung up in many places in recent years, especially as the soft-shelled turtle market has flattened while the turtle market has held firm, prompting many soft-shelled turtle farmers to switch to turtles. But farmers have found that although some female turtles lay a good number of eggs, the fertilization rate is not high and the hatch rate is low, especially with eggs from turtles at their first laying age, where the fertilization rate is even lower. Many people assume the female turtle is the problem, little realizing that the cause does not lie with the female turtle at all, but is mainly related to factors in the male turtle itself. Through practice, people have found that in nature many animals show differences in the timing of sexual development
-
A Brief Analysis of Treatment Methods for Hip Joint Dislocation in Cattle
Hip joint dislocation in cattle is extremely difficult to reduce, and most veterinarians classify it as an incurable disease. We now report the course of successfully reducing 1 typical case of hip joint dislocation in cattle as follows: Jie Jinbao's household in Shangfan Village, Changqiao Township, Guangchang County, 1 three-year-old yellow cattle bull. Chief complaint: On the morning of April 20, 2001, the cattle was tethered for grazing on a path embankment not far from the village. When someone went to change the grazing area in the afternoon, the cattle was found fallen beside the road and unable to stand. After learning of this, we quickly rushed to the scene. 1 Diagnosis Several people lifted the sick cattle up, and the hind limbs appeared mixed
-
Introduction to Tokyo Cherry Blossom Varieties and Analysis of Their Main Characteristics
Family and genus: Rosaceae. Alternative names: Japanese cherry, Edo cherry. Morphological characteristics: Deciduous tree with dark brown, smooth bark; young twigs hairy. Leaves ovate-elliptic to obovate, 5-12cm long, apex acutely acuminate, base rounded to broadly cuneate, margin with fine pointed double serrations, veins on the underside and petioles pubescent. Flowers white to pale pink, 2-3cm in diameter, usually single-petaled, slightly fragrant; calyx tube tubular, hairy; pedicel about 2cm long, with short pubescence; 3-6 flowers arranged in short racemes. Drupe nearly spherical, black. Flowering period April.
-
Experimental Methods and Results Analysis for the Control of Jujube Fruit Shrinkage Disease
In recent years, jujube fruit shrinkage disease has become increasingly severe. Jujube fruit generally becomes affected at the white fruit stage, and often a large number of fruits drop within a few days. In ordinary years the incidence rate is 5%-8%, and in severe cases the proportion of diseased fruit reaches over 30%. Diseased fruit tastes bitter and is unfit to eat, seriously affecting the quality and yield of jujube fruit. Because opinions differ from place to place on the pathogenic factor of this disease, and it was discovered in our county only just over 10 years ago, there is still no successful experience in controlling it. After consulting materials from many sources and conducting field observations, the fruit tree station formulated an experimental plan for the control of jujube fruit shrinkage disease and achieved fairly good results.
-
Full Analysis of the Key Technical Points for Lotus-Rice-Fish Integrated Farming
"Lotus-rice-fish" integrated farming refers to a co-culture model in which both rice is planted and fish are raised during the growing period of lotus root. The relevant integrated farming techniques are briefly introduced below. 1. Reasonable site selection. Choose gray mud fields with sufficient water sources, strong water retention capacity, and medium or above fertility. Fields with water-quality concerns, cold-waterlogged fields, and perennial lotus fields are not suitable for selection. 2. Select improved varieties. For lotus seeds, choose excellent varieties with large grains, a long flowering period, and high yield; for rice, it is advisable to choose early-maturing or early-to-medium-maturing varieties, such as Minke Zao No. 8, Zhefu 218, etc.; for fish, mainly stock common carp.
-
Analysis of Common Misconceptions About Soaking and Disinfecting Eel Fry
In many years of fishery production, aquaculture technicians have accumulated rich farming experience. Soaking fish fry in salt water for disinfection is one of the traditional practices of farmers in various regions. However, aquaculture experts in China and some eel farmers have found in practice that the method of soaking and disinfecting fish fry in salt water, which is widely used for other fish species, is not suitable for use in eel farming. In early 2000, based on experiments, a scholar put forward the view that "using salt water to disinfect eels is unsafe." The experiment showed that after using salt water to disinfect the body of
-
A Complete Analysis of the Key Cultivation Techniques for Abrus cantoniensis (Chicken-Bone Herb)
Abrus cantoniensis has strong adaptability and is not demanding about soil; it can generally be planted on dry land (flat land or sloping land), with sandy loam being the best. It is drought-tolerant and afraid of waterlogging, so the planting site must have good drainage and plenty of sunlight. 1. Raising seedlings (sowing from March to April on the Gregorian calendar is best). The seed coat of Abrus cantoniensis is smooth and hard, so the seeds must be treated before sowing, otherwise the germination rate will not be high. Treatment method: mix the seeds with twice their volume of fine sand, place in a mortar or bamboo tube and pound with a round-headed wooden pestle for 20 minutes, or rub by hand for 30 minutes, then sift out the sand.
-
What are the difficulties in cultivating Schisandra chinensis? A complete analysis of practical countermeasures
Cultivating Schisandra chinensis artificially to replace wild resources has already become an inevitable trend in the development of the Schisandra chinensis industry. Many difficulties have also emerged in the production process of artificially planting Schisandra chinensis, and these difficulties have seriously hindered the path of Schisandra chinensis production toward intensive, large-scale, and industrialized development, and are also the fundamental reason for the current lack of large-scale successful experience in artificially cultivating Schisandra chinensis. Regarding the harm caused by pests and diseases, pesticide residues, and drift. The overall countermeasure is: adhere to the three principles of prevention, mitigation, and treatment. Prevention: in the process of Schisandra chinensis cultivation, consistently implement the policy of placing greater emphasis on prevention than on treatment, act early to seize the initiative. Take preventive measures before trouble arises and avoid being passive. In recent years, due to consecutive warm winters, the development of Schisandra chinensis has advanced, so all agronomic measures must also be carried out earlier. Among the 24 solar terms, after Awakening of Insects, Schisandra chinensis should be protected according to local phenological conditions. To prevent certain fungi in the atmosphere from attaching to the stems and vines of Schisandra chinensis, the specific measure is to spray Bordeaux mixture, prepared with equal amounts of quicklime and copper sulfate, one part each, and 200 parts water. After Schisandra chinensis leafs out, promptly spray broad-spectrum fungicides and foliar fertilizers, Bihu + polyoxins + fulvic acid. Mitigation: if nearby farmland is sprayed with butyl ester pesticides, we must take targeted measures and spray mitigating agents, or spray foliar fertilizers to improve immunity. At this stage, prevention should focus mainly on leaf blight. Spray pesticides against Deuteromycota fungi. Treatment: if diseases still occur when protective and mitigating measures are ineffective, apply the right remedy for the condition. Carry out timely treatment. Strictly prevent the loss of the optimal prevention and treatment timing, which causes losses. For the treatment of several common diseases, please follow the methods in the Schisandra chinensis pest and disease section below. Keep firmly in mind the lesson of the large-scale damage to Schisandra chinensis in Heilongjiang in 2007, and never allow the tragic situation to repeat itself.
条件筛选