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Key technical points for mid-season management of cotton during the Major Heat solar term
Focus on promoting growth, combining promotion with control, achieve control of large seedlings, promotion of small seedlings, and supplementation of weak seedlings, promote the transformation of weak seedlings, achieve balanced growth of strong seedlings, and build a high-yield framework early. Scientific fertilizer and water management: First, apply bud fertilizer early and steadily. For weak seedlings, apply bud fertilizer early and steadily, generally applying 5-7 kg of urea per mu, and 25-50 kg each of cake fertilizer and phosphate fertilizer. Second, apply flower and boll fertilizer early and heavily. Generally in late early July, when 1~2 large bolls appear on the lower part of the cotton plant, carry out topdressing, applying 15~20 kg of urea per mu. Third, supplement with topping fertilizer.
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Key Technical Points for Cotton Management in the Mid-to-Late Growth Stage
"Major Heat" has passed, and "Start of Autumn" is approaching. Cotton in the southern Hebei region has entered the peak period of full flowering and boll setting. The main problems currently are: first, due to excessive rainfall in the earlier period and delayed chemical regulation, some fields are growing too vigorously with excessively tall cotton plants; second, due to recent sustained high temperatures, aphids, red spider mites and other pests have broken out more severely in some cotton fields, adversely affecting cotton growth. Currently it is the cotton flowering period, which is also the critical period for mid-to-late stage cotton management. In view of this year's climate characteristics, seize the favorable opportunity, adapt measures to local conditions, provide classified guidance, and effectively
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Key Technical Points for Spring Sesame Cultivation with Plastic Film Mulching
Plastic film mulching cultivation can bring sesame yields to over 150 kg per mu, and some can exceed 200 kg, so film mulching is an effective cultivation measure for achieving super-high sesame yields. The specific techniques are introduced as follows: 1. Seed selection and timely early sowing: After plastic film mulching, the effective growth period of sesame is extended. Therefore, mid-to-late maturing excellent sesame varieties with waterlogging tolerance, disease resistance, and high yield potential should be selected, such as Yuzhi No. 5, No. 7, No. 8, and sesame hybrids. Early sowing is suitable, with a sowing period from the end of April to early May, to fully utilize the growing season and increase sesame yield. 2. Land preparation
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Comprehensive Prevention and Control Methods and Technical Key Points for Porcine Respiratory Disease Syndrome
This disease is characterized by occurring throughout the year, in an endemic pattern, affecting pigs of all ages, mostly at 13-20 weeks of age, with a course of 2-8 days and a relatively high mortality rate. Symptoms: affected pigs show elevated body temperature of 40.5°C-42°C, depression, reduced or absent appetite, difficulty breathing, sometimes coughing, pale visible mucous membranes, pale or purplish skin, constipation or diarrhea, abortion and stillbirth in pregnant sows, and neurological symptoms in suckling piglets with high mortality. Pathological necropsy: necropsy of 6 dead pigs and 2 severely ill
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Management Measures and Technical Points for Rice during the Jointing and Panicle Elongation Stage
The jointing and panicle elongation stage refers to the period from jointing and the beginning of young panicle differentiation to just before heading, generally 25-36 days for middle-season rice. 1. Growth and development characteristics and growth appearance during the jointing and panicle elongation stage (1) Growth and development characteristics During this period, on the one hand, stem elongation is the center, completing the growth of the last few leaves and root system and other vegetative organs; on the other hand, reproductive growth centered on young panicle differentiation takes place. During this period some tillers gradually die, and the total number of stems and tillers declines compared with the earlier stage, so it is an important period for preserving tillers and increasing panicles. From
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Key Technical Points for High-Yield Cultivation of Intercropped Indica and Glutinous Rice
Rice "indica-glutinous intercropping" refers to a configuration method for cultivating hybrid indica rice and glutinous rice, that is, selecting medium-stem hybrid indica rice and tall-stem glutinous rice varieties, and using the wide rows within the wide-narrow row arrangement of hybrid indica rice to plant additional single rows of glutinous rice at a certain band width, row ratio and width, forming a composite of hybrid indica rice and glutinous rice within the same field. Based on the principles of three-dimensional agriculture, it uses the characteristics of different rice varieties, different maturity periods and different plant heights for intercropping cultivation, so that temperature and light resources are utilized at multiple levels,
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Detailed Explanation of Key Technical Points for Controlling Two Diseases and Three Pests of Rice
The two diseases and three pests of rice refer to rice blast, sheath blight, rice stem borers, rice planthoppers, and the rice red-spotted black spittlebug. They cause great harm to rice and should be given attention for control. Rice blast: Long-term deep water irrigation or excessive drought, and one-sided application of nitrogen fertilizer lead to severe rice blast. There are three susceptible periods in the life of rice, namely the seedling stage, the peak tillering stage, and the heading and full heading stage. Neck blast has the greatest impact on rice yield and should be prevented early at the breaking stage and full heading stage. Rice blast is divided into: seedling blast, leaf blast, node blast, neck blast, and grain blast. Rice blast
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Detailed Explanation of Autumn Potato Sowing Methods and Technical Key Points
1. Whole-tuber sowing: The sowing period for autumn potato cultivation falls in the high-temperature, rainy season of August. Cutting seed potatoes into pieces for sowing easily leads to tuber rot and dead seedlings. Using whole-tuber sowing can reduce tuber rot and dead seedlings in autumn, prevent degeneration, and increase yield. Seed potatoes for autumn sowing should be small tubers of about 50 g that were harvested early from spring seed potatoes and carefully selected. These tubers should be undamaged, disease-free, with bright skin color and moderate size. About 200 kg of seed potatoes are needed per mu. During autumn sowing, the seed potatoes are in a dormant state. Before sowing, they should be sprouted or soaked in a chemical solution to promote sprouting. Generally, 5 days before sowing, soak them in a 15-20 mg/L gibberellin solution for 20-30 minutes, remove them, and bury them in wet sand to promote sprouting. Sow when the sprouts reach 1-2 cm in length.
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Detailed Explanation of Key Technical Points for Storing Peaches, Plums, and Apricots
1. The warehouse must be disinfected before loading. 2. For storage, choose late-maturing peaches and plums, which should be harvested at 70-80% maturity. 3. When harvesting, pay attention to the following points: ① Harvest with the fruit stalk attached. ② Handle gently. ③ Harvesting should be done on a clear morning after the dew has dried, or in the afternoon after 3-4 o'clock. Harvesting at noon or with dew is unfavorable for storage. ④ Irrigation in the peach and plum orchard is prohibited one week before harvest. ⑤ Peaches and plums harvested after rain are not resistant to storage.
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Processing Methods and Technical Key Points for Bagged Roasted Jujubes
Roasted jujubes, also known as crispy jujubes, are burnt-fragrant and crispy with a unique flavor. Process flow: material selection -> soaking and washing -> pitting -> roasting -> sugar coating -> cooling -> packaging. Main technical key points: 1) Material selection. Choose top-grade red jujubes with large fruit, dense texture and no diseases or insect pests as the raw material. 2) Soaking and washing. Pour the red jujubes into a vat of warm water, wash them clean and let them absorb water and swell. 3) Pitting. Remove the pits with a pitter. 4) Roasting. Pour the pitted jujubes into a specially made jujube roasting cage (a cylindrical mesh cage 80 cm long and 25 cm in radius). The cage
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