Planting Technology Lists
-
Technical opinions on Spring sowing and Seedling Protection of Cotton
"half of the seedlings are produced." Since late March, cotton sowing across the country has been carried out one after another. Due to the high cotton prices last year, cotton production has recovered this year, seed markets have started early around the country, and seed sales have rebounded significantly. In view of the abnormal climate last year, rainy and low temperature in autumn, more rotten bolls, and the overall deviation of seed quality, coupled with the low temperature and drought in last winter and spring, we should be prepared in advance to actively deal with the unfavorable weather of low temperature, drought or high humidity. According to the forecast of the Central Meteorological Observatory, there is a high probability of high temperature and drought this spring.
2019-01-16 -
Seedling raising techniques of tender wood cuttings of Metasequoia glyptostroboides?
The seedling raising techniques of tender wood cuttings of Metasequoia glyptostroboides are as follows: from late May to early June in early summer, the temperature reaches 25 to 28 degrees Celsius, and cuttings can be selected to raise seedlings. Generally, twigs about 14 to 18 centimeters long are selected in the early morning and cut off from the inflated parts with bud scales at the base of the branches. Then remove the extra feather leaves, leaving only the tip and the upper 4-5 feather leaves. Wrap it in a moist substance and keep it fresh in a cool place. Cut cuttings were treated with 50 mg of NAA per kg for 5 to 6 hours, or 300 to 500mg of NA per kg.
2019-01-16 -
Management of Metasequoia glyptostroboides seedlings?
The management method of Metasequoia glyptostroboides seedling stage is: after the seedling survival stage, followed by the seedling stage. The fast-growing period of seedlings is from mid-July to mid-September. Attention should be paid to strengthening fertilizer and water management and topdressing every 20 days or so, which is beneficial to the growth of seedlings. Water should be watered in time during drought, and attention should be paid to drainage in rainy areas. The nursery land should pay attention to timely loosening the soil and weeding. In that year, the seedlings can reach 50 to 90 cm high and 0.8 to 1.2 cm in diameter, which can be afforestation.
2019-01-16 -
Rapid Seedling raising technique of Metasequoia glyptostroboides
1. Soil preparation and bed preparation are required to raise seedlings with conventional small seeds. Bed width 100cm, high 20cm, slightly suppressed after leveling, sprinkled with 3G pesticide per square meter to control underground pests and earthworms. The nursery bed for raising seedlings will be ready before the middle of February. Every 500g seeds will be sown in the 20m2 seedbed and can be used for field transplanting in the future. The field transplanting seedbed will be ready by late March. two。 Timely sowing time is the key. Temperature has a great influence on the underground part of seedlings, and lower air temperature can inhibit the growth of main roots and promote the growth of main roots.
2019-01-16 -
Matters needing attention in tending and Management of Metasequoia glyptostroboides
It should be nurtured in time after afforestation. Watering in April and May is the key to survival. When planting big seedlings, special attention should be paid to drought resistance in the hot season. Weeding and loosening soil were carried out two or three times a year, and the tending effect was significant from May to June and from August to September. Two years later, it is necessary to apply fertilizer before germination in spring. Generally speaking, pruning is not necessary before the forest is formed, but it should be pruned moderately after the forest is established. When the tree is 6 to 10 meters high, the pruning height is 1/4 to 1/3 of the tree height; when the tree height is 10 to 15 meters, the pruning height is 1/3 to 1/2 of the tree height.
2019-01-16 -
Cultivation techniques of Metasequoia glyptostroboides
Metasequoia glyptostroboides (Metasequoiaglyptostroboides), alias Metasequoia glyptostroboides, Taxodiaceae. First, overview: is an ancient and rare tree species, known as "living fossils", for the national key protection of plants. In 1941, Chinese botanists first discovered it in Wanxian, Sichuan and Lichuan, Hubei, which caused a shock in the botanical circle of the world. Second, ecological characteristics: originating from China. Like a warm, humid and sunny environment. Strong adaptability, cold tolerance, shade tolerance, moisture tolerance, drought tolerance and drought tolerance
2019-01-16 -
Control methods of privet inchworm in garden ornamental trees
Distribution and damage of privet inchworm NaxaseriariaMotschulsky, also known as lilac inchworm. It belongs to Lepidoptera, Geometridae. Distributed in Northeast, North China, Northwest, Southwest and East China. The larvae are martyr, Beijing clove, weeping clove, lilac, Liaodong clove, white clove, privet, big leaf privet, sweet-scented osmanthus, camellia, tea, water wax, Fraxinus mandshurica and Fraxinus mandshurica. The larvae gather to feed on the leaves, often nibbling away at the leaves. The larvae have the habit of spinning and netting, and when it is serious, the net covers the tree crown.
2019-01-16 -
Brief explanation of Seedling raising technique of lobular Ligustrum lucidum
Lobular Ligustrum lucidum belongs to Oleaceae, Ligustrum lucidum, evergreen or semi-evergreen shrubs. Also known as small leaf holly, small ash tree. It is a hedge material in the garden, and can be used as the rootstock of sweet-scented osmanthus, cloves and other trees. Strong sex, cold tolerance; strong root tillering; resistance to pruning. It can be propagated by sowing, cutting and ramet, but mainly by sowing. First, sowing seedlings from October to November, when the drupe is purple-black, it can be harvested and sowed immediately after harvest, or it can be dried and stored until March of the following year. Soak the seeds in warm water for 2 days before sowing, and sow the seeds after soaking. Mining
2019-01-16 -
Control of spot disease of lobular privet
Lobular Ligustrum lucidum belongs to the genus Ligustrum lucidum of Oleaceae. It is an excellent colored shrub and has been widely planted in recent years. However, with the increase of planting area and the growth of planting years, some of its shortcomings are gradually exposed, especially the old seedlings, there are varying degrees of fallen leaves in the rainy season every year, and occur year after year, seriously affecting the landscape effect. It is observed that this situation is caused by the spot disease of Ligustrum lucidum. According to the preliminary observation and study, the pathogen of lobular privet spot disease belongs to semi-known subphylum fungi. Circle
2019-01-16 -
Lobular privet
Scientific name: LigustrumquihouiCarr. English name: PurpusPrivet family name: Oleaceae shrub of Oleaceae, 2mi 3m high. Branchlets densely pilose. Leaves thinly leathery, elliptic or Obovate-oblong, 1.5 cm long and 0.8 mi 1.5 cm wide, glabrous, apex obtuse, base cuneate; petiole pubescent. Panicle 7 mi 22 cm long, pilose; flowers white, fragrant, sessile; Corolla tube and lobes equal, anthers slightly protruding flowers
2019-01-16