-
What are the improved methods for pear tree cultivation?
For pear trees with poor quality and low yield, the usual method is to cut down the original plants. Planting improved, vigorous seedlings for renewal means it takes five years before they come into production. If the top-grafting and variety-change technique is used, however, the original tree framework can be utilised to rapidly form a canopy, achieving a per-tree yield of
-
Control Methods for Anthracnose in Muskmelon Cultivation
It is a fungal disease. Muskmelon anthracnose occurs severely in the middle and late stages of plant growth, mainly damaging stems, leaves and fruits. After harvest, infected fruits will rot in storage and transport when exposed to a humid environment and become unfit to eat. On diseased seedlings, semicircular brown lesions appear on the edges of the cotyledons.
-
A Detailed Guide to Blackberry Propagation Methods: Teaching You How to Grow Blackberries Well
Blackberries can be propagated by methods such as cuttings, layering, root sucker division, and tissue culture. At present, hardwood cuttings and root sucker propagation are mainly used, and where conditions permit, softwood cuttings can also be used. 1. Hardwood cuttings. During winter pruning (after leaf fall in December), cut vigorous, plump, disease-free and pest-free branches into cuttings 8-12 cm long with 2-3 buds, and store them in sand. In early spring before budbreak (around mid-February), insert the cuttings. Bury the cuttings 3-5 cm into the soil, planting 40-50 cuttings per square meter. After inserting, water thoroughly and cover with rice straw, then keep the soil moist regularly. With good management, the survival rate can reach 40-50%, and at best over 60%, and the plants can be lifted from the nursery in the same winter. After the cutting-propagated seedlings are lifted from the nursery, many root segments remain in the soil and can be used to continue propagating seedlings. The specific method is to apply a small amount of organic fertilizer to the nursery bed in winter, shallowly turn it once to press the fertilizer into the soil, prepare the land and make beds in early spring, water once during drought, and by April a large number of root sucker seedlings will sprout. Leave about 20 seedlings per square meter, and thereafter manage them the same as in a general nursery.</p><p>2. Softwood cuttings. From mid-July to early August, carry out softwood cuttings under shade frames and full-automatic misting conditions. Use peat and sand mixed at 1:1 for the cutting bed soil. Roots can form 7-10 days after insertion, and the survival rate can be as high as 80-90%. After 1 month, move them to open ground, strengthen management, and they can be lifted from the nursery the following spring.</p>
-
Control methods for the blackberry pest, the sloe bug (Dolycoris baccarum)
Blackberry is one of the third-generation fruits recommended to the world by the Food and Agriculture Organization (FAO) in 1993. In 1995, the Xingnong Seed Company of Xuecheng District, Zaozhuang City, Shandong Province, successfully introduced it from the United States, and in 1997 it was listed by the Municipal Science and Technology Commission and the Municipal Finance Bureau as a key agricultural extension project. Because of its good nutrition
-
How to Cultivate Blackberries with High Quality and Scientific Methods? Detailed Explanation of Key Technical Points
1 Site Selection The most suitable soil texture for a blackberry orchard is loam or sandy loam. Soil pH can range from 5.0 to 8.0, but 6.0 to 6.5 is best. Soil salt content should be <0.1%, soil layer thickness should preferably be >50cm, and the groundwater level should be >100cm. For most blackberry varieties, the minimum winter temperature needs to be above -15 degrees Celsius
-
What are the common methods for removing astringency from persimmons?
For traditionally cultivated persimmons, most cannot complete natural astringency removal on the tree, and must undergo artificial astringency removal treatment after harvest before they can be eaten or processed into dried persimmons. These persimmons that can only be eaten or processed after artificial astringency removal are called astringent persimmons. There is also another type of persimmon that must have
-
Management Methods and Technical Key Points After the Persimmon Tree Fruits
Timely fertilization: When the fruit's transverse diameter reaches 4~5 cm and when the fruit size has basically become fixed, apply fruit-swelling fertilizer and pre-harvest fertilizer, mainly with quick-acting, quick-dissolving nitrogen-phosphorus-potassium fertilizer. For fruiting trees over five years old, apply 1.5~2 kg of urea and 0.75~1 kg of monopotassium phosphate per tree, or apply nitrogen-phosphorus-potassium
-
What are the control methods for citrus canker?
Symptom characteristics Damage to leaves, twigs and fruit. The common feature of the symptoms is that all affected parts show corky, raised lesions, with the center of the lesion cracking in a crater-like pattern; the difference is that the corky lesions on leaves penetrate both the front and back of the leaf, with a yellow halo around the lesion, while the lesions on fruit and twigs
-
Pomelo Anthracnose Control Methods, a Must-Read for Growers
Symptom Characteristics Harm to leaves, twigs and fruit. On leaves and twigs during continuous rainy and humid weather, acute-type symptoms appear: pale bluish patches with dark brown on leaf tips, like scalded by boiling water, with indistinct edges; tender shoots show acute wilting like scalded by boiling water. In briefly humid weather that quickly turns clear,
-
Control Methods for Penicillium Mold and Green Mold in Pomelo
Symptom characteristics: mainly affects fruit after harvest during storage and transport. The symptoms of the two diseases are similar, mostly starting from the stem end or wounds, initially appearing as light brown water-soaked spots. The lesions expand rapidly, the fruit softens and rots, and a layer of white mold grows on the lesion surface; later the white mold patches turn into green mold patches.
条件筛选