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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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The correct method for broadcasting compound fertilizer during the rice stem elongation stage
During the rice stem elongation stage, topdressing is generally carried out 1 to 2 times. In previous years we used urea, but this year we switched to a high-tower granulated fertilizer. This is a compound fertilizer with high nitrogen and low phosphorus and potassium. The fertilizer granules are round and smooth on the outside, with holes inside, and have a relatively low specific gravity. Before fertilizing, we first drained the flooded water, then broadcast the compound fertilizer granules on the soil surface, and immediately let water back into the field. After the water layer was full, we found that some fertilizer granules appeared on the water surface. These floating granules were blown to one side by the wind, and some stayed in the sheltered corners.
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What should be noted for fishery production during heavy snow
The rain and snow weather process since January 10 has affected 77.862 million people in 14 provinces (regions, municipalities) including Anhui, Jiangxi, Henan, and Hunan, with 28 deaths caused by the disaster. Ningbo City also began experiencing heavy snowfall starting at 4:00 this morning, with snow accumulation reaching 2.5 cm. Facing the heaviest snow in 50 years nationwide, fishery production in Yinzhou District should pay attention to the following points: 1. Deepen pond water levels as much as possible to prevent fish from being frostbitten due to excessively low water levels. Because when the pond water level drops too much
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Don't Forget to Protect Broodstock During Induced Spawning
Reducing the death of broodstock during induced spawning is an important technical task for fry producers. In production practice we have found that there are two reasons for the death of broodstock during induced spawning: first, the broodstock consumes a great deal of energy during the spawning and reproduction process, and combined with the side effects of the inducing drugs, the body's resistance declines; if the fish is severely injured, various pathogens will seize the opportunity to infect the fish, causing disease and leading to death. Second, the broodstock's constitution is poor, the gonadal development is not good, or the water temperature varies greatly during induced spawning, and the dosage of the inducing drugs is improper
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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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How to Cope with Low Temperature and High Humidity During the Late Silkworm Stage
When low temperature and high humidity occur during the late silkworm stage, heating should be the main measure, raising the temperature to lower the humidity in the silkworm rearing room. The specific methods are as follows: 1. Heat the silkworm rearing room, and after the temperature rises, open the doors and windows appropriately to ventilate and remove moisture. 2. Prevent the silkworms from eating tender leaves, wet leaves, and immature mulberry leaves; appropriately reduce the amount of mulberry given each time, and do not let leftover leaves accumulate, so as to prevent the silkworm bed from becoming cold and damp. 3. Use more moisture-absorbing and drying materials such as lime to keep the silkworm bed dry. 4. During cold, rainy seasons, after the mulberry leaves are picked, store them for a certain
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Comprehensive Utilization Techniques for Fish Fingerling Ponds During the Winter Fallow Period
Using Winter-Fallow Fingerling Ponds to Raise Marketable Fish Raising a crop of marketable fish in winter-fallow fingerling ponds can both increase production and help regulate the "summer shortage" in the aquatic product market. Because the rearing period is relatively short and temperatures are low, the following techniques should be adopted: 1. Stock early, that is, stock immediately after the fingerlings are concentrated in ponds, so as to make full use of the growing period. Based on a maximum water depth of 2 m, the usual stocking rate is 125-150 kg per mu. The usual stocking ratio is about 40% silver carp, about 10% bighead carp, about 30% grass carp and bream, and about 20% black carp and common carp. Stocked fish
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What are the methods to prevent acidosis in chickens during hot weather?
In summer, when temperatures are high, leftover feed that sits overnight or feed that becomes damp or heated is very prone to spoilage and turning sour. Once chickens eat it, it irritates the walls of the crop and causes inflammation. If the leftover feed produces too much acid during the spoilage process, the acid passes through the crop wall and intestinal wall into the bloodstream, causing acidosis in the chickens. After acidosis occurs, chickens generally show a purplish comb, standing apart and listless, drooping wings, ruffled feathers, a sharp drop in feed intake, and even refusal to eat. When the crop is pressed by hand, some are empty and some are filled with fluid; if the chicken is held upside down, a foamy, sour-smelling fluid drips from its mouth, and severely affected
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Detailed Explanation of Key Management Techniques for Angelica sinensis During the Overwintering Period
For directly sown Angelica sinensis (Chinese angelica), in combination with topdressing before winter, cover the seedlings with manure-enriched soil or add a layer of fine soil about 1 cm thick over the seedlings to protect them from frost damage; for seedling-raised and transplanted Angelica sinensis, seedling storage work must be done well in winter; for seed-bearing Angelica sinensis, in order to improve seed yield and quality, before harvest, robust and uniform seedlings grown on high mountains or mid-mountain slopes must be selected for seed production. Afterwards, cut off the aboveground parts of the seed-bearing plants, remove all weeds, let them overwinter naturally, and keep watch frequently to prevent livestock from entering and trampling them, which would cause gaps in the seedlings. In early spring of the following year, if weeds are seen growing, they can be pulled out by hand; at this time, the root system covers the soil surface, so hoeing for weed control and fertilization must not be used, to avoid cutting the root system and hindering plant growth.
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Key Points of Off-Season Cultivation Techniques for Oyster Mushrooms During High-Temperature Periods
Off-season cultivated edible mushroom products often sell for 4 to 6 times the price of those in the regular season, yielding quite remarkable returns. To improve off-season edible mushroom cultivation during high temperatures, our institute has explored off-season high-temperature cultivation techniques for oyster mushrooms over the past few years. The results show that off-season oyster mushroom cultivation not only has a high success rate, a short time, fast fruiting and easy management, generally fruiting in 15 to 20 d, with a biological conversion rate of over 90%, but also has a short cycle and significant benefits. It is introduced as follows: 1 Cultivation time arrangement Conventional oyster mushroom cultivation generally stops going to market in mid-May each year.
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