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 Wysłany: Czw 12:35, 20 Sty 2011 Temat postu: tiffany schmuck Technology of hybrid rice cultivat |
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Cultivation technology of hybrid rice Jicha Yang
Surgery center; 2. Lake County Agricultural Mechanization School) Lake County area of hybrid rice cultivation area of rice cultivation accounts for 2 / 3 or more. Jicha Yang in order to be applied on hybrid rice in recent years, the county agricultural departments at different combinations of hybrid rice,[link widoczny dla zalogowanych], the amount of down valley, machine inserted field management, planting density, and the ongoing exploration and accumulated some successful experience further in the local and surrounding areas to lay the foundation for large scale. 1. Appropriate choice to choose the appropriate combination of hybrid rice combinations are machine inserted the key to success. According to different combinations of tests in recent years,[link widoczny dla zalogowanych], machine hybrid plug relatively short growing period should be selected,[link widoczny dla zalogowanych], tiller strong, high grain weight, grain-based hybrid combination of both machine inserted to ensure the safety of heading and after heading the normal filling Otherwise, not high and stable yield. Artificial planting a large area to the county crosses Liangyoupeijiu, for example, because of its long growth period, machine inserted down Gu late, so the break heading later, heading over time the latter encountered once the cold rainy weather can not be guaranteed Safety heading, even if they heading,[link widoczny dla zalogowanych], but also because autumn temperatures drop, the normal grain filling, resulting in decreased seed set, can not get high. Previous Crops harvested at the same time a good measure of time, so that appropriate early sowing, seedling age control 1416d. Different combinations machines (artificial) planting heading, full heading in Table 1.2. Determine the optimum sowing strong growth potential of hybrid rice in conventional rice, hybrid rice should be inserted so strict machine sowing rate relations, is to ensure the quality of local interpolation to reduce the drain plug rate, high yield hybrid rice seized machine plug an important part. Table 2 shows that seeding rate the greater the more the number of seedlings per hole, the greater the basic seedling per 667m, the lower the leakage rate of insertion. Although large amount of planting to improve the quality broadcasting, but with the kinds of cost increases, while not high planting density requirements of local interpolation; with seed quantity is too small, seedling root growth in soil density, poor seedling block connection is not conducive to machine insert. After a trial to explore suitable for broadcast sowing rate should be controlled in dry types of 500 ~ 600g/667m or 80100g / disc is appropriate for every 667m. Daejeon plant (28cmx58cm) seedlings block 1820,[link widoczny dla zalogowanych], 1 to 3 per hole, population density of about 4 million, equivalent to the amount of each species of 667m with 1.50 ~ 1.75. 3. Fine uniform planting of hybrid rice with the kinds of less mechanical transplanting, sowing easy uneven uneven seedling quality, machine insertion point rate increase in time and space, drain plug rate, where the best qualified to take mechanical seeding, planting to ensure uniform improve Seeding Rate and Seeding should be controlled from 1 to 3 / cm. 4. Strengthen field management of growth characteristics under Jicha Yang, machine plug should concentrate on the hybrid: one timely and appropriate resting fields, Jicha Yang was born live trees rapidly after the tiller, the peak comes early seedlings, faster, more vigorous, and control peak seedlings, the formation of rational groups. Machine plug hybrid rice field should have put the expected spike in the 80% will put the drainage field, in order to ensure a large enough spike spike; the second is applied early spikelet promotion, Jicha Yang artificial planting than a month late sowing, growth deficiencies early spikelet promotion facilities, the consolidation of spikes, increased grain number, critical big spike attack, usually the hands of leaf age when the application leaves the remainder 3.5O; Third Using growth regulators, worms with break before heading control spraying potassium dihydrogen phosphate and other plant growth regulators, and promoting heading and increase grain weight. 5. Seedlings and agricultural pest control procedures and requirements of seedling quality requirements, field tillage requirements with the same mechanical transplanting rice. Table 1 hybrid combinations of different machines (artificial) planting heading, full heading stage total section 150
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[link widoczny dla zalogowanych]
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