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What are the field management measures for Coptis chinensis cultivation?
1. Replanting: In the first 3 years after planting, replanting should be done promptly. Generally, replanting is done 2 times: the 1st time in the autumn of the same year, and the 2nd time after the snow melts the following year but before new leaves emerge. 2. Weeding: In the year of planting and the following year, weed promptly and loosen the surface soil, weeding 4-5 times each year; chemical herbicides can also be used.
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Key Field Management Techniques for Cotton During the Squaring Stage
Currently, cotton in Shache County is about to enter the squaring stage. All townships must attach great importance to field management of cotton fields during the bud and boll stage, and specifically provide technical guidance focused on fertilizer and water management, intertillage and weeding, and chemical regulation. 1. Prepare for the first watering. Conventional irrigated land should be intertilled, weeded, and have the film removed before the first watering
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Field Management Techniques for Pollution-Free Mango Cultivation
(1) Soil management: In combination with the application of base fertilizer, dig a trench on each side of the tree canopy below the drip line. The standard trench size is 100 cm x 50 cm x 40 cm, and green manure, decomposed organic fertilizer and phosphate fertilizer are pressed into it. It is recommended to interplant dwarf leguminous green manure, forage grass, other nectar source plants or grow grass between the rows of the mango orchard, but the intercrops should be at least 1 m from the base of the mango trees. The grass species selected should be short-stemmed or creeping, share no common pests or diseases with mango, and have a short growth period, such as Ageratum conyzoides (goatweed). It is recommended that the root zone or planting strip of mango be covered year-round.
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Key Field Management Techniques for Fig Cultivation
(1) Intertillage and weed control: In young orchards, intertillage and weed control should be carried out once each in spring, summer and winter, and winter intertillage should be combined with earthing up to prevent freezing. In mature orchards, intertillage should be done during the dormant period, and in summer the ground should be covered with grass, which can both suppress weed growth and prevent drought and preserve soil moisture. If weeds still grow, they can
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Key Points of Field Management Experience for Sugar Tangerines in October
1. Field management ① Orchard grass management: choose measures you consider economically effective to control weed growth. Controlling weeds at this stage helps expose the fruit to light, improves ventilation, reduces air humidity in the tangerine orchard, and supports disease prevention work. ② Strengthen late-stage nitrogen control of the fruit to ensure quality: citrus fruit
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Key Technical Points for Spring and Summer Field Management of Navel Orange Orchards
Spring comes early in southern Jiangxi, warm and rainy. From March to June, navel oranges are in the phenological stages of spring shoot growth, flowering and fruit set, and the first and second physiological fruit drop. This is also the dangerous period when more than 10 kinds of pests and diseases, such as citrus flower bud midge, mites, scale insects, tortrix moths, longhorn beetles, anthracnose, resin disease, and canker, rapidly multiply, spread, and proliferate.
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What are the field management measures for summer corn in the middle and late stages
1) Timely intertillage and topdressing to meet nutrient needs. During the jointing to small trumpet stage (from 6 leaves unfolded to 10 leaves unfolded), apply fertilizer in combination with intertillage. Through intertillage, destroy wheat stubble, loosen the soil, and control weeds. Topdressing should be mainly nitrogen fertilizer; do not broadcast it on the soil surface. It should be concentrated near the roots
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Key Technical Points for Summer Corn Planting and Field Management
Most summer corn has already entered the jointing stage to the large trumpet stage; therefore, doing a good job of chemical regulation for lodging prevention at the jointing stage, ear fertilizer application, and pest and disease control is crucial for achieving high corn yields. 1. Scientific chemical regulation. Because the wheat growth period was delayed, corn sowing dates were generally later, and the jointing stage coincided with the rainy season, planting hidden risks for corn lodging. Chemical regulation not only makes corn stalks tough, the root system well developed, and lodging resistance stronger, but also deepens leaf color, thickens leaves, increases chlorophyll content, and enhances photosynthesis. It can generally reduce plant height by 10-15 cm and ear height by 10-12 cm, and can also shorten internodes, shaping an ideal high-yield plant form with good ventilation and light penetration. It plays a role in drought resistance, disease resistance, lodging resistance, and promoting reproductive growth, helping to produce large cobs, more kernels, heavier kernels, and a low bare-tip rate. It increases density by 200-400 plants per mu, with a yield increase generally of 15%-30%, truly achieving “seeking high yield within dense planting.” The time for chemical regulation is generally when corn has 6-13 expanded leaves, and the effect is best at 8-13 expanded leaves. Before the 6-leaf stage, corn leaves are slender and the leaf surface is smooth. When corn reaches the 7-expanded-leaf stage, the leaves become broad and thick, and fine soft white hairs appear on the leaf surface that can be easily felt with the back of the hand; this is the best time to spray chemical regulation agents. For the spray agent, the top choice is Dinongbao, the latest research achievement of the Chinese Academy of Agricultural Sciences.</p><p>2. Topdressing ear fertilizer. During the ear stage, the absorption of mineral nutrients is greatest and the absorption intensity is highest; this is the period when corn absorbs nutrients fastest and is also the most important fertilization period in its life. Topdressing nitrogen fertilizer at the large trumpet stage can effectively promote the differentiation of female ear florets and achieve large ears with many kernels. Generally, 20-25 kg of urea or nitrogen-potassium compound fertilizer can be topdressed per mu. The topdressing method can be trenching beside the rows or hole application deep beside the plants, preferably combined with irrigation or applied during effective rainfall. Never broadcast fertilizer on the soil surface to prevent fertilizer loss.</p><p>3. Strengthen pest and disease control. For pests and diseases at the summer corn ear stage, focus on controlling brown spot and corn borer. Brown spot can be controlled by foliar spraying with 12.5% Hexaconazole or 12.5% Triadimefon; corn borer can be controlled at the large trumpet stage by pouring phoxim granules into the whorl or by spraying the heart leaves with 4.5% beta-cypermethrin emulsion or 50% phoxim emulsifiable concentrate. </p>
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Key Field Management Techniques for Corn at the Big Trumpet Stage
The big trumpet stage is a critical period for corn growth and development, when both reproductive growth and vegetative growth are vigorous. At the same time, this stage is also a period of high incidence of corn pests and diseases. Field management at this stage should emphasize the "five preventions": 1. Preventing fertilizer deficiency. The big trumpet stage is the peak period of fertilizer demand,
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Spring field management for winter wheat: remember these eight key points
Spring is the critical period that determines the number of spikes per mu, the number of grains per spike and grain weight in wheat. Strengthening spring field management according to seedling conditions is the key to achieving high wheat yields. In terms of management, the eight key points of pressing, raking, clearing, topdressing, watering, controlling, preventing and protecting should be implemented as priorities. Pressing: namely early
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