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Detailed Explanation of Potato Cultivation Technology with Rice Straw Mulching
In 2000, Zhejiang Province carried out research on a new technique for no-till rice paddy cultivation of potatoes with full rice straw mulching, changing "planting seed potatoes" to "placing seed potatoes" and "digging potatoes" to "picking potatoes." The whole process can be vividly summarized as "place, cover, pick," eliminating many operations such as plowing and land preparation, digging holes for planting, intertillage weeding, and digging potatoes. The fresh potato yield per 667 sq m was over 1500 kg. A few years ago, our province introduced this technique and demonstrated it successfully. 1. Select good varieties. Varieties suitable for planting in our province include:
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Key Technical Points for Winter Potato Cultivation with No-Till or Minimum-Till Rice Straw Mulching
I. No-till or minimum-till field preparation. 1. Selection of no-till or minimum-till fields. No-till or minimum-till potato cultivation is best carried out in sandy loam fields with convenient drainage and irrigation, loose soil, a pH value of 5.5-6, and good water and fertilizer retention. It is especially suitable for planting in sandy loam paddy fields with good drainage and irrigation conditions during the winter fallow period in our city. Fields prone to drought and water shortage and shallow, poor fields, heavy clay fields, low-lying fields, mountain pit fields, cold waterlogged fields, and rotten
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Key Cultivation Techniques for Machine-Transplanted Rice at the Transplanting Stage
I. Make a Good Start and Manage the Seedling Nursery Well 1. Apply the "standing-up fertilizer" according to seedling appearance. This is generally done 3-4 days before transplanting; the amount and method of application should depend on seedling color. For weak seedlings with faded leaf color, use 4-4.5 kg of urea per mu diluted in 200 kg of water, and spray or splash evenly in the evening; after application, sprinkle clean water once to prevent fertilizer burn to the seedlings. For seedlings with normal leaf color and upright leaves that do not droop, use 1-1.5 kg of urea per mu diluted in 60-70 kg of water for foliar spraying. For seedlings with dark green leaves and drooping leaves, do not apply fertilizer at all; water control measures should be taken to improve seedling quality.
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Detailed Explanation of Key Techniques for Raising Strong Seedlings for Machine-Transplanted Rice
With the improvement of the level of intensification in rice production, mechanical transplanting has become an inevitable trend. One of the keys to machine-transplanted rice production is raising strong seedlings. The following measures can produce strong seedlings: 1. Apply strong seedling agent. The strong seedling agent is usually mixed with the subsoil. First mix a small amount of fine soil with the strong seedling agent evenly, scatter it on the bottom of the seedling tray, and then add the subsoil. This avoids uneven mixing and scattering due to too much subsoil, which leads to uneven distribution of the strong seedling agent, causing seedling dwarfing and failure to emerge where too much strong seedling agent is present, resulting in seedlings pulling loose during transplanting and affecting the quality of mechanical transplanting. 2. Cover with plastic film.
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Introduction to the Characteristics and Traits of the Jijing 69 Rice Variety
Jijing 69 was bred by the Rice Research Institute of the Jilin Academy of Agricultural Sciences in 1991 from the progeny of the cross 769/02428//Zhansan. Characteristics and traits: Jijing 69 is sown from April 10 to 15, transplanted from May 20 to 25, heads from July 23 to 27, and matures around September 10. The growth period is 135 days and requires an effective accumulated temperature of 2650°C. Plant height is 95 cm, the stems are strong and resistant to lodging, the leaf color is light green, the flag leaf spreads horizontally after heading, tillering ability is strong, and the number of effective panicles per single plant
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Rice Research Institute of Jilin Academy of Agricultural Sciences selects high-quality rice varieties
At the recently concluded evaluation of high-quality rice varieties (lines) in Jilin Province, "Jigeng 81" and "Jigeng 83", bred by the Rice Research Institute of the Jilin Academy of Agricultural Sciences, were rated as "high-quality rice varieties", and another 6 lines were rated as "high-quality rice lines". It is reported that this high-quality rice variety (line) evaluation was the third such event held after 1995 and 1998. The 10 high-quality rice varieties selected in the previous two events have already been promoted and applied on a large scale in production thanks to their good quality and high yield
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Introduction to the Characteristics and Traits of the Jiyujing Rice Variety
Jiyujing is a new early japonica conventional rice variety bred by the Rice Research Institute of the Jilin Academy of Agricultural Sciences from Hui 73/Qiuguang.
=Rice Research Institute of the Jilin Academy of Agricultural Sciences Characteristics and Traits This variety has the following features: 1. It has good biological traits. The growth period is 135 days, requiring an effective accumulated temperature of about 2750°C, and it is insensitive to photoperiod and temperature responses. The plant height is 95-100 cm, the plant type is compact, the leaves are erect, and the leaf sheath, leaf margin, and leaf collar are all green. It has strong tillering ability, with more than 20 tillers per single transplanted seedling. -
What are the advanced methods for transplanting rice seedlings?
1. Improved intensive cultivation: transplant young seedlings at the 3-leaf to 4-leaf 1-heart stage early. Fields with good water sources should be planted early; fields with poor water sources can be planted slightly later. Both dry-raised and water-raised seedlings are suitable, but sufficient base fertilizer should be applied, the field should be deeply plowed and harrowed level, strong seedlings should be selected as much as possible, and transplanting should be done in shallow water; both the row spacing and hill spacing are 1 chi 3 cun, with three single plants per hill spaced 3 cun apart in a triangular arrangement. This transplanting method has density within sparseness and sparseness within density, minimizing competition among plants for nutrients and sunlight to the greatest extent, which benefits individual plant development and can therefore increase yield considerably. It is the most advocated
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Introduction to the Characteristics of the Jijing 14 Rice Variety
The super-high-yield japonica rice new variety Jijing 14 (90-3) is an excellent new variety combining high yield, disease resistance, high lodging resistance, and superior grain quality. Characteristics: In the Hebei Provincial regional trials and large-area demonstrations, this variety's average yield per mu exceeded the control by more than 15%, with a general yield of 750 kg per mu. In 1993, this variety was selected to implement Hebei Province's "Harvest Cup" high-yield program. On-site expert threshing verification showed that the average yields per mu of two high-yield fields (over 2 mu each) were 907.9 kg and 918.7 kg respectively. Among them, 918.7 kg exceeded Hebei Province's
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How should rice seedling beds be managed to cultivate strong seedlings?
I. Water management in seedling beds: For dry-raised seedlings, generally no supplemental water is needed during the seedling stage. Adhere to dry raising and dry management to improve the drought tolerance of the seedlings. At the same time, pay attention to watering well three times: water thoroughly with "bottom moisture water" before sowing, water well with "film-removal water" when removing the film, and water well with "leaf-rolling water" during drought. At the 1-2 leaf stage, control water appropriately to promote downward growth of seminal roots; at the 2-3 leaf stage, pay attention to supplemental water to prevent seedling death; after the 3-4 leaf stage, strictly control water and use dry raising to cultivate physiologically strong seedlings. To prevent excessive rainwater from making dry raising and dry management impossible, small arched sheds or greenhouses can be used to strictly control water for dry raising.
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