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A method of fertilization and nitrogen leaching control suitable for pear orchard with sandy soil

A soil and pear orchard technology, applied in fertilization methods, land preparation methods, cultivation and other directions, can solve the problems of nitrogen leaching of chemical fertilizers, poor soil water retention capacity, etc., to reduce nitrogen addition, reduce water evaporation, and improve water and fertilizer utilization efficiency. Effect

Active Publication Date: 2022-02-11
INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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Problems solved by technology

[0003] The present invention proposes a method suitable for cultivating fertilizers to control nitrogen leaching in pear orchards with sandy soil, which solves the problems of poor soil water retention capacity and nitrogen leaching in pear orchards in the prior art

Method used

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  • A method of fertilization and nitrogen leaching control suitable for pear orchard with sandy soil
  • A method of fertilization and nitrogen leaching control suitable for pear orchard with sandy soil
  • A method of fertilization and nitrogen leaching control suitable for pear orchard with sandy soil

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Embodiment 1

[0037] Cow manure and corn stalks are mixed at a ratio of 1.3:0.7 (dry basis) and organic fertilizer with a water content of 29% is applied, and 2400kg is applied per mu, followed by N-P 2 o 5 -K 2 O nutrient content is that the compound fertilizer of 17-21-15 is applied evenly between the rows of pear trees, and spreads 40kg / mu. Rotate or plow the inter-row soil more than 0.9 meters away from the trunk of the pear tree, with a depth of 20cm, and use an orchard micro-rotary tiller for the soil below 0.9 meters from the trunk, with a depth of 6cm, sowing 1.8kg / mu, and suppressing The strength is 25-35kPa for the soil compactness of 5cm above the surface. (It is easy to purchase in the agricultural machinery market.) The rainfall from June to November of this year was 81mm, 186mm, 94mm, 44mm, 39mm, and 11.2mm respectively. The natural rainfall is abundant, and the soil moisture meets the requirements for sowing. Seedlings emerge in 5 to 7 days after sowing. Not irrigated befo...

Embodiment 2

[0056] On September 3, 2016, 2400kg of organic fertilizer combined with cow dung and straw was applied per mu, and the water content of the organic fertilizer was 28.7%, and then N-P 2 o 5 -K 2 O nutrient content is that the compound fertilizer of 17-21-15 is applied evenly between the rows of pear trees, and spreads 40kg / mu. Rotate or plow the inter-row soil more than 0.9 meters away from the main trunk of the pear tree, with a depth of 20cm. Use an orchard micro-rotary tiller for the soil within 0.9 meters from the main trunk, with a depth of 6cm, and sow 1.8kg / Mu, the pressure of suppression is 25-35kPa at the soil compactness of 5cm above the surface. On May 24, 2017, May 27, 2018, and May 24, 2019, 5 cm of stubble was crushed. Refer to Example 1 for irrigation and fertilization dosage methods. On September 5, 2019, after applying organic fertilizers and chemical fertilizers, rotary tillage or plowing was used to sow seeds for suppression. cycle.

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Abstract

The invention relates to the technical field of agricultural production, and proposes a method for cultivating fertilizer and controlling nitrogen leaching loss suitable for pear orchards with sandy soil, comprising the following steps: S1, irrigation and fertilization; S2, sprinkling Erzulan seeds between rows of pear trees; S3 , Irrigation and fertilization: irrigate before winter in late autumn; in March to April of the second year, irrigate before the pear tree blooms; Leaves crushed and mulched; S5, irrigation and fertilization; S6, the third year, repeat the operation of the second year; S7, the fourth year, in the middle and late May of February orchid stubble, stems and leaves crushed and covered, and rotary tillage or plowing in September Sow again. Through the above technical scheme, the problems of poor water retention capacity and nitrogen leaching of chemical fertilizers in pear orchards in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a method for fertilizing and controlling nitrogen leaching that is suitable for pear orchards with sandy soil. Background technique [0002] Pears are one of the most widely planted fruit trees in my country. According to statistics from the Food and Agriculture Organization of the United Nations (FAO) in January 2019, by the end of 2017, the cultivated area of ​​pears in my country was about 960,000 hm 2 , with a total output of about 16.53 million tons, accounting for 69.1% and 68.4% of the world's total planted area and total output respectively, ranking first in the world. Hebei is the largest province of pome fruit production in my country, 3.65333 million tons more than the second-ranked Shandong Province (2017 China Rural Statistical Yearbook). However, the sandy pear orchard soil accounts for a large proportion, and the organic matter content is low, espe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01B79/00A01C21/00A01G17/00A01G22/60
CPCA01B79/02A01B79/00A01G17/005A01G22/60A01C21/005
Inventor 郭丽王丽英史建硕王广恩任燕利刘倩
Owner INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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