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Reviving and tillering fertilizer topdressing-free rice base fertilizer and application method thereof

An application method and tillering fertilizer technology, which is applied in the direction of fertilization method, application, nitrogen fertilizer, etc., can solve the problems of increased labor cost, excessive chemical fertilizer input, high fertilizer price, etc., and achieve the goal of increasing ear formation rate, preventing defertilization and premature aging, and stable effect Effect

Pending Publication Date: 2020-01-17
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention aims at the problems of excessive and wasteful input of chemical fertilizers and increased labor costs caused by frequent fertilization of rice tillering stage, and the use of slow and controlled-release fertilizers as base manure for one-time fertilization has unstable effects and high fertilizer prices due to mismatch with the law of fertilizer demand of rice, and provides a The rice base fertilizer and application method of free greening and tillering fertilizer, in order to reduce the frequency of fertilization and chemical fertilizer input, save labor costs, and at the same time stabilize the fertilizer effect, improve fertilizer efficiency and planting benefits

Method used

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  • Reviving and tillering fertilizer topdressing-free rice base fertilizer and application method thereof
  • Reviving and tillering fertilizer topdressing-free rice base fertilizer and application method thereof
  • Reviving and tillering fertilizer topdressing-free rice base fertilizer and application method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 avoids the preparation of paddy base manure of returning green, tillering manure

[0034] Prepare a kind of nitrogen fertilizer, phosphorus fertilizer, potash fertilizer (N-P 2 o 5 -K 2O) mass parts are 28-8-12, 2 parts of zinc fertilizers, 2 parts of nitrogen fertilizer synergists are exempted from chasing back to green, the rice base manure of tillering manure, and its concrete steps comprise: first buy following fertilizer raw materials from the market, each raw material The components are weighed according to the following parts by mass: 545 kg of medium granular urea, 163 kg of granular diammonium phosphate, 11 kg of granular superphosphate, 200 kg of granular potassium chloride, 61 kg of granular zinc sulfate containing 33.0% zinc, and 20 kg of dicyandiamide. The so-called fertilizer raw materials are put together in a mixer and stirred at a speed of 10 rpm for 8 minutes. After being fully mixed, they are sent into a metered package, which is N-P 2...

Embodiment 2

[0035] The stable production effect of the paddy base fertilizer of embodiment 2 exempt from chasing back to green, tillering manure

[0036] From 2016 to 2018, the present invention was tested and verified in Dianshanhu Town, Kunshan, Suzhou City, Jiangsu Province, Nandu Town, Liyang, Changzhou City, and Zhangdian Town, Jiangyan, Taizhou City, respectively. The soil fertility of the lake is high, the soil fertility of Nandu is medium, and that of Zhangdian is low. According to the target yield of rice, the recommended nitrogen application rates for rice planting on the three soils are 210kgN / ha, 240kgN / ha and 270kgN / ha, respectively, and the proportions of basal nitrogen (pure nitrogen) are 60%, 55% and 50% respectively. In the specific implementation, select the contiguous farmland operated by cooperatives or farms to select fields with basically the same soil fertility, irrigation and drainage conditions, and output over the years to carry out production demonstrations. Th...

Embodiment 3

[0040] Example 3 The rice basal fertilizer of exempting from chasing back to green and tillering manure significantly improves the efficiency of nitrogen fertilizer

[0041] Implementation steps are the same as in Example 2. As can be seen in Table 2, the base fertilizer uses the rice base fertilizer of the present invention to avoid chasing back to green and tillering manure at three demonstration points, and compares it with the customary fertilization of farmers, and can reduce nitrogen fertilizer recovery rate, agronomic efficiency and Partial productivity increased by 4.7% to 23.6%, 30.3% to 42.9% and 25.7% to 31.8% respectively.

[0042] Table 2 Effects of rice basal fertilizers free of topdressing greening and tillering fertilizers on nitrogen efficiency of rice

[0043]

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Abstract

The invention discloses a reviving and tillering fertilizer topdressing-free rice base fertilizer and an application method thereof; the reviving and tillering fertilizer topdressing-free rice base fertilizer comprises the following components in parts by mass: 26-32 parts of a nitrogen fertilizer, 6-10 parts of a phosphate fertilizer, 8-12 parts of a potash fertilizer, 2-4 parts of a zinc fertilizer and 1-2 parts of a nitrogen fertilizer synergist, and the total mass parts of nitrogen, phosphorus and potassium are not less than 48 parts. When the base fertilizer is applied, rice does not needto be dressed with a reviving and tillering fertilizer, and topdressing is only performed once in the elongation stage. The design of the base fertilizer conforms to the nutrient requirement law of the rice, the base fertilizer can meet the nutrient requirement of the rice in the nutrient critical period (tillering period) on the premise of no topdressing for the reviving and tillering fertilizer, and early growth and rapid germination of tillering are promoted; an elongation fertilizer can meet the nutrient requirements of the rice in the maximum nutrient efficiency period (elongation booting period), and premature senility caused by fertilizer removal is avoided; therefore, the fertilizer has a stable fertilizer effect. The reviving and tillering fertilizer topdressing-free rice base fertilizer effectively solves the problem of excessive chemical fertilizer input caused by excessive frequency density of fertilization in the tillering stage of rice, the yield can be kept slightly increased under the condition that the use amount of a chemical fertilizer is reduced by 20.3-32.2%, and the nitrogen fertilizer recovery rate, agronomic efficiency, partial productivity and planting benefits are obviously improved.

Description

technical field [0001] The invention relates to the technical field of fertilizers and fertilization, in particular to a paddy base fertilizer free of chasing greening and tillering and an application method thereof. Background technique [0002] After rice is transplanted, its on-field growth and development needs to go through three stages: tillering, jointing and booting, and grain filling. Among them, the tillering period lasts about 4 weeks. In this period, in addition to applying base fertilizer, farmers also habitually topdress green manure and tillering fertilizer successively, that is, the interval between three fertilizations in the tillering period is only about 7 days. Studies have shown that although increasing the frequency of fertilization under the same amount of fertilizer is beneficial to improve the effect of fertilizers, the amount of chemical fertilizers in actual production always increases rapidly with the increase of the frequency of fertilization, an...

Claims

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Application Information

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IPC IPC(8): C05G1/00A01C21/00
CPCC05B1/02A01C21/005C05B7/00C05C9/00C05C11/00C05D1/02C05D9/02
Inventor 宁运旺张辉张永春王磊汪吉东殷广德王绪奎朱德进黄卉王少华
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES