-
Standardized Cultivation Techniques for Dry-Raised Sparse Planting of Rice in Ningxia
Clean the pear orchard by scraping off the rough and cracked bark on the trees to destroy the cocoons and pupae of pests such as the pear fruit borer and the pear stinging caterpillar; sweep up dead branches, fallen leaves and mummified fruit to reduce the sources of infection for diseases such as pear scab, brown spot and powdery mildew; prune out diseased and damaged leaves, branches and trunks to eliminate the overwintering larvae of the pear bark miner and the pear stem sawfly; the cleared material should be buried deep in a centralized pit or burned. Irrigation and fertilization: irrigate during the period from leaf fall to soil freezing to improve the pear trees' winter hardiness; in spring, irrigate 10 days before flowering, and according to tree age and tree vigor, apply 0.5-1 kg of urea per tree to promote flowering and leaf development. Deep digging of the tree plate
-
Spring-planted rice D You 68, a variety recommended by the Ministry of Agriculture
D You 68 is a three-line hybrid mid-season rice bred by the Rice Research Institute of Sichuan Agricultural University. It was approved by the Sichuan Provincial Crop Variety Approval Committee in 1997. Its whole growth period is 4-5 days longer than that of Shanyou 63, and it belongs to the late-maturing medium indica combination. Plant height 120 cm, growth uniform, plants luxuriant, tillering ability relatively strong, high ear-bearing rate, large panicles with many grains, panicle length about 23 cm, grains per panicle 187-194, seed setting rate about 80%, 1000-grain weight 26.3-27.7 g. Wide adaptability, strong stress resistance, good color at maturity, relatively great flexibility in seedling age
-
The 10th Regiment of the First Agricultural Division pioneers a new water-saving technique for dryland rice cultivation with drip irrigation under plastic film
In 2010, the 10th Regiment of the First Agricultural Division of the **Production and Construction Corps used new science and new technology to transform traditional agriculture. Faced with a severe shortage of water resources and its disadvantaged position as a unit downstream of the First Division's water supply, it independently developed new machinery for sowing rice on dryland with drip irrigation under plastic film, which was put into rice production and vigorously promoted by Aral City of the First Division. According to Kong Jun, the First Division's deputy division commander in charge of agriculture, this cultivation model not only saves labor in rice planting but also conserves water resources and farmland costs, helping to increase rice yields and efficiency, and it has opened a new chapter for the Corps' agriculture and livestock farms.
-
Introduction to the Characteristics of the Glutinous Rice Variety Nuoyou No. 2
(1) Variety source: A glutinous hybrid rice combination developed by the Provincial Institute of Nuclear Application Technology and Chongzhou City Seed Company by crossing the self-bred male sterile line N2A with the restorer line 1)091. (2) Characteristics: The full growth period is 147 days, 0.5 days later maturing than the control Jingnuo No. 6. Plant height is 115 cm, with medium tillering ability, dark green leaf color, compact plant type, purple-red leaf margins, short internodes at the stem base, and a total of 15 leaves on the main stem. Panicle length is 22.25 cm, with 160 grains per panicle, and a seed setting rate of 90
-
Key Technical Points for Cultivating Strong Seedlings in Rice Tray Nursing for Machine Transplanting
Economic Daily News: Raising small strong seedlings of tray-nursed machine-transplanted rice is an important part of achieving high quality and high yield in machine-transplanted rice. The specific technical points are introduced as follows: Tray soil preparation: select loam soil that is fertile, free of stubble, gravel, weeds, and free of contamination to seedlings, with a pH value of 4.5-5.5. If such acidic soil is not available, sulfuric acid or nitro humic acid can be used to adjust the acidity. To prevent damping-off and other seedling-stage diseases, apply 50-60 grams of dexon per cubic meter of tray soil. To fertilize the tray soil, add pure nitrogen, pure phosphorus,
-
Introduction to the rice variety Peiliangyou 210 (formerly known as Pei'ai 64s/He 6)
Characteristics: This variety is an indica two-line hybrid rice. When grown as double-cropping late rice in the middle and lower reaches of the Yangtze River, its average whole growth period is 118.3 days, 0.3 days later than the control Shanyou 46. Plant height is 106.9 cm. The plant and leaf shape are good, the population is uniform, the flag leaves are erect, growth is luxuriant, and the panicle-grain weight is well coordinated. Cold tolerance is relatively weak. The effective panicle number per mu is 194,000 panicles, panicle length is 22.7 cm, total grains per panicle is 133.9, seed-setting rate is 73.2%, and 1000-grain weight is 26.1 g. Resistance: rice blast grade 7, bacterial leaf blight grade 5, brown
-
Introduction to the Characteristics and Traits of the Rice Variety Peiza 67
Basic Information We used the low-temperature-sensitive genic male sterile line Pei'ai 64S and the self-selected high-quality indica-japonica hybrid progeny line G67 (Copslo17/Haogolao//Xinxiu 299) for test crossing, and bred the new two-line hybrid rice combination Peiza 67, which combines high quality, high yield and high resistance. Characteristics and Traits Peiza 67 participated in the Guangdong Province two-line hybrid rice joint trial, with a yield of 6.84 t/ha, on par with the control Shanyou 63; in 1996 and 1997 it participated in the provincial hybrid rice joint regional trial, with yields of 6.29 and 6
-
What are the precautions for spraying foliar fertilizer on rice?
Timing: Generally, spraying at the late booting, initial heading, grain-filling and full heading stages of early rice is most suitable, and spraying once per mu takes over an hour. If spraying fertilizer coincides with the heading and flowering stage, it should be done in the morning before the flowers open and after 4 p.m. Preparing liquid fertilizer: Various quick-acting nitrogen, phosphorus and potassium fertilizers, monopotassium phosphate, triacontanol, borax, silkworm droppings and human and livestock urine can all be used as foliar fertilizer. The amount used per mu is small, but they must first be processed into liquid fertilizer. Quick-acting chemical fertilizers should be dissolved in 5-10 times their amount of water the day before spraying to prevent burning the rice leaves from over-spraying. Human and livestock urine should first be left
-
Rice seedling-stage diseases require careful prevention and control, especially during periods of abnormal temperatures
Seedling-stage diseases are the general term for various physiological and infectious diseases during rice seedling raising, also called seedling rot. Physiological seedling rot refers to symptoms such as seed rot, bud rot, black root, greens wilt and yellow wilt death of seedlings caused by adverse environmental conditions; infectious seedling rot refers to seedling death symptoms caused by the harm of cottony leak and damping-off. During the seedling-raising period in northern rice regions, low temperatures and cold wave weather strikes are common, and the annual incidence rate of seedling rot disease is 10%~23%. Symptom characteristics 1. Physiological seedling rot: 1. Seed rot, refers to seeds rotting before germinating
-
Methods and Technical Key Points for Controlling the Two Migratory Rice Pests
Control recommendation: For single-cropping rice, carry out one comprehensive control treatment from July 13-15, targeting mainly the rice leaf roller and the white-backed planthopper, and also controlling the small brown planthopper and rice thrips. Pesticide formulations: 1. Use 40-50 ml of 5% fipronil (Regent) suspension concentrate per mu; 2. Use 70-80 ml of 31% fipronil-triazophos (Sanfu) per mu; 3. Use 100 ml of 50% phenthoate per mu; 4. Use 50 ml of 40% chlorpyrifos (Xinnongbao, Saiben) per mu plus 2 g of 80% fipronil (Regent) water-dispersible granules; 5. Use 3
条件筛选