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Culture method increasing utilization of light energy of rice

A technology of rice cultivation and utilization rate, applied in rice cultivation, fertilization methods, plant cultivation, etc., can solve the problems of mutual shading of plants, achieve the effects of promoting biomass, improving photosynthetic efficiency, and improving ventilation and light transmission capabilities

Inactive Publication Date: 2011-09-07
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of mutual shading of rice plants after flowering and improve the level of fully utilizing light energy resources of rice, the invention provides a cultivation method for improving the light energy utilization rate of rice

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Embodiment 1

[0016] When applying the present invention, scientific seed selection, strong seedling cultivation, fine soil preparation, formula fertilization, timely transplanting, scientific management, timely and early harvest.

[0017] Cultivating strong seedlings refers to adopting simple plastic bowls to raise seedlings. Choose pollution-free, leeward, sunny, convenient water and power sources, high terrain, good drainage, no salinity, fertile soil, and flat terrain to build seedling greenhouses. The surface soil, humus soil and decomposed farmyard manure in the dry field are mixed according to the ratio of 5:2:2 and passed through a 5-mesh sieve to make the seedbed soil. Select excellent varieties such as Jijing 88, Tongyu 223, Tongyu 318, etc., sow in early April, and dry the seeds for 2-3 days before sowing; use 1:1.13 salt water for seed selection; use 45% "901" wettable powder Dilute the water 500 times, soak the seeds at 15°C for 5-6 days; take out the soaked seeds and put them...

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Abstract

Disclosed is a rice cropping method for improving the efficiency for solar energy utilization, the row direction of rice cropping is from southwest to northeast, and the angle is 20-25 degrees to the magnetic south westwards; the rice cropping row is a combined row of a ventilation and light penetrating super-large row and a rice planting small row, the row spacing of the ventilation and light penetrating super-large row is 60cm, and the row spacing of the rice planting small row is 20cm. Two rows of rice are planted on the rice planting small row with the plant spacing of 15cm, and the rice seedling transplanting adopts the zigzag transplanting method. The phenomenon of mutual overshadowing of rice plants in the effective photosynthesis time can be avoided by changing the tillage row direction and extending the row spacing, thus greatly increasing the whole plant illumination time and improving the intensity of illumination, as well as increasing the photosynthetic rate maximally. The application of the invention matched with the scientific farming, scientific management and duly early harvest technique can increase the percentage of earring-tillers by 13.3 percent, raise the soil temperature in the flowering stage by 0.4-2.1 DEG C and increase the soil temperature in the filling stage by 2.2 DEG C, the yield is increased by 838.5kg, up by 9.4 percent, and the efficiency for solar energy utilization of economic yield is increased by 0.16 percent.

Description

technical field [0001] The invention belongs to the crop cultivation technology in the field of agricultural technology, and relates to a rice cultivation method for efficiently utilizing solar energy by changing the row direction and expanding the row spacing. Background technique [0002] At present, the traditional rice planting method in the Northeast Plain has a row spacing of 30cm×20cm, and the planting direction is mostly along roads or canals, with strong randomness and no fixed direction. After the rice flowering period, the middle and lower parts of the rice plants are well ventilated in this cultivation method. The photosynthesis is poor, and the photosynthesis of the middle and lower leaves of rice cannot be fully utilized, thereby seriously affecting the accumulation of dry matter, thereby affecting the yield. This cultivation method does not maximize the use of light energy from the sun. Studies have proved that the light energy utilization rate of this traditi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G16/00A01C1/00A01C21/00A01M1/20A01G22/22
CPCY02P60/12
Inventor 王洋齐晓宁刘景双宋凤斌
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S