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A cultivation method and rice technology are applied in the field of rice nitrogen fertilizer reduction and post-shift cultivation, which can solve the problems of excessive use of nitrogen fertilizer, aggravate the greenhouse effect, affect the ecological environment, etc. Effect
Active Publication Date: 2019-07-12
FOOD CROPS RES INST YUNNAN ACADEMY OF AGRI SCI
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Nitrogen fertilizer plays an important role in rice production, but the existing rice cultivation methods lead to the phenomenon of excessive use of nitrogen fertilizer in the rice production process. According to statistics, the amount of nitrogen fertilizer used in rice accounts for 37% of the total amount of nitrogen fertilizer used in my country
Excessive nitrogen fertiliz
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[0054] Example 1 Planting of Indica Rice
[0055] 1. Seedling cultivation and field preparation
[0056] 1.1 Selection of sowing date
[0057] Choose the field where the previous crop is potato as an indica rice field. The sowing date is April 5th when the average temperature reaches 15℃ after the potato is harvested.
[0058] It should be noted that indica rice fields can also choose fields where the previous crops are other vegetables, such as fresh corn, rapeseed, green beans, cowpea, broad beans, watermelon, cabbage, greens, lettuce, cabbage, cauliflower, cucumber, garlic, Peppers etc.
[0059] The crops of the current crop are harvested, and the period when the average temperature is above 15°C is generally from late March to early April. The actual planting period is judged based on the local crop and relevant climatic conditions.
[0060] 1.2 Nursery
[0061] According to the sowing time, indica rice seedlings should be raised in advance, specifically: choose full and healthy ric...
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[0077] Example 2 Planting of Indica Rice
[0078] Except that the field where the previous crop was fresh corn was selected as the indica rice field, everything else was the same as in Example 1.
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[0079] Example 3 Planting of Indica Rice
[0080] Except that the field where the previous crop is rape is selected as the indica rice field, everything else is the same as in Example 1.
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Abstract
The invention discloses a rice nitrogen fertilizer decrement backward moving cultivation method, relates to the technical field of rice cultivation. The rice nitrogen fertilizer decrement backward moving cultivation method comprises the steps of carrying out field management of controlling diseases, pests and weed; transplanting rice seedlings obtained by dark room seedling raising treatment intoa field block which is subjected to soaking with irrigation water and ploughing and soil preparation treatment to obtain a rice field for rice planting; carrying out fertilization treatment on the rice field, wherein a nitrogen fertilizer is not used as a base fertilizer or a tillering fertilizer; and irrigating a small amount of water in the rice field and enabling the rice field to be dry naturally, and carrying out cyclic irrigation treatment of stopping irrigation for a week before harvesting to obtain ripe rice. The rice nitrogen fertilizer decrement backward moving cultivation method hasthe characteristics that the nitrogen fertilizer consumption is low, the rice yield is high, the nitrogen fertilizer is not applied to the rice in a base fertilizer and tillering period, the nitrogenfertilizer consumption is reduced, furthermore, the nitrogen fertilizer utilization rate is improved, the labor investment is reduced, the method is simple, and the cost is low; and more importantly,the influence on the environment is reduced to a maximum extent, the effect is remarkable, and the universality is wide.
Description
technical field [0001] The invention relates to the technical field of rice cultivation, in particular to a method for transplanting rice after nitrogen fertilizer reduction. Background technique [0002] Rice is one of the most important food crops in my country. Nearly 60% of the population takes rice as a staple food. At present, my country's rice planting area is about 451 million mu, ranking first in the world in terms of per unit yield and total output. Nitrogen fertilizer plays an important role in rice production, but the existing rice cultivation methods lead to the phenomenon of excessive use of nitrogen fertilizer in the rice production process. According to statistics, the amount of nitrogen fertilizer used in rice accounts for 37% of the total amount of nitrogen fertilizer used in my country . Excessive nitrogen fertilizer application will reduce the accumulation of organic matter in the soil, affect soil fertility, cause water eutrophication through surface run...
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IPC IPC(8): A01G22/22A01C21/00
CPCA01C21/005A01G22/22
Inventor 龙瑞平杨从党夏琼梅李贵勇朱海平
Owner FOOD CROPS RES INST YUNNAN ACADEMY OF AGRI SCI
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