Fertilization and nitrogen leaching loss control method suitable for sand-prone-soil pear orchard

A soil and pear orchard technology, applied in fertilization methods, soil preparation methods, cultivation, etc., can solve the problems of poor soil water retention capacity, fertilizer nitrogen leaching, etc., to reduce downward leaching, reduce nitrogen addition, and reduce soil The effect of water evaporation

Active Publication Date: 2021-03-23
INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Fertilization and nitrogen leaching loss control method suitable for sand-prone-soil pear orchard
  • Fertilization and nitrogen leaching loss control method suitable for sand-prone-soil pear orchard
  • Fertilization and nitrogen leaching loss control method suitable for sand-prone-soil pear orchard

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Experimental program
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Effect test

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. Not irrigated before winter.

[0038]On March 20 of the second ...

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 provides a fertilization and nitrogen leaching loss control method suitable for a sand-prone-soil pear orchard. The methodcomprises the following steps of S1, irrigating and fertilizing; S2, spreading orychophragmus violaceus seeds between rows of pear trees; S3, irrigating and fertilizing, namely performing irrigation in late autumn before winter, irrigating the pear trees before flowering in March to April of the next year, and irrigating and fertilizing in early and middle May after the flowering phase of the peartrees; S4, reserving stubbles of orychophragmus violaceus in mid-to-late May, and crushing stems and leaves for covering; S5, irrigating and fertilizing; S6, repeating the operation of the second year in the third year; and S7, in the fourth year, reserving the stubbles of the orychophragmus violaceus in mid-to-late May, crushing the stems and leaves for covering, and carrying out rotary tillageor ploughing for re-sowing in September. By means of the technical scheme, the problems that in the prior art, pear orchard sand-prone soil is poor in water retention capacity, and chemical fertilizernitrogen leaching losses are caused 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 Applications(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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