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Planting method capable of collecting rainwater by using charcoal to cover furrows in semi-arid area

A planting method, biochar technology, applied in botany equipment and methods, chemical instruments and methods, plant protection, etc., can solve problems such as plastic film residue, achieve the effect of enhancing adsorption and retention, increasing soil moisture, and improving utilization efficiency

Inactive Publication Date: 2018-08-28
GANSU AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to avoid the defects of the prior art, and propose a biochar-covered ridge and ditch rain-collecting planting method in a semi-arid area. The bio-char-covered ridge and ditch rain-collecting planting uses the biochar-soil mixture crust as a ridge covering material, which solves the current traditional common problem. Film-covered ridges and furrows for rain-collecting planting cause problems such as film residues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: a kind of semi-arid area biological charcoal covers ridge ditch rain-collecting planting method, following steps:

[0035] (1) Build ridges and make ditches: Build rain-collecting ridges with in-situ soil along the contour line on gentle slopes (10°-15°). The height of the rain-collecting ridge is 15-20 cm, and there is a ditch between the feet of two adjacent rain-collecting ridges, and the width of the ditch is 57-63 cm. The best time to build ridges and make ditches is from March 10th to April 20th.

[0036] (2) Fertilization: superphosphate 350~420 kg hm -2 and urea 90~140 kg hm -2 As a base fertilizer, the two kinds of fertilizers are mixed and sprinkled on the soil surface in the ditch before planting, and the fertilizer is poured into the soil to a depth of 20-30 cm. It is not allowed to mix crop seeds and urea to avoid burning seedlings.

[0037] (3) Rain-collecting ridges covered with straw biological carbon: 3×10 4 ~5×10 4 kg hm -2 Straw ...

Embodiment 2

[0043] Embodiment 2: The same step as in Example 1, except that in step (3), animal feces biochar is used to cover the rain-collecting ridge; 3.5 × 10 4 ~5.5×10 4 kg hm -2 Animal feces biochar and wet soil with a water content of 14% to 21% are uniformly mixed in a volume ratio of 1:0.9 to 1:1.2, and the animal feces biochar soil mixture is artificially evenly spread on the surface of the rain-collecting ridge; in step (4) , for drill crops, the sowing rates of alfalfa, red bean grass, oats and spring wheat are 20-22.5 kg hm -2 、80~100 kg hm -2 、120~140 kg hm -2 and 225~270 kg hm -2 , the sowing depths were 1-2 cm, 2-3 cm, 3-5 cm and 3-5 cm; the sowing time of alfalfa, red bean grass, oats and spring wheat were from March 28 to June 28, 4 From April 5th to June 5th, from April 10th to April 28th, and from March 28th to April 10th; in step (6), two stubbles of alfalfa were mowed, and the mowing time was June 20th. ~28 and October 1~10; two crops of red bean grass are cut...

Embodiment 3

[0044] Embodiment 3: The steps are the same as in Example 1, except that in step (3), the dregs biochar is used to cover the rain-collecting ridge, and 2.8 × 10 4 ~4.8×10 4 kg hm -2 Medicinal dregs biochar and wet soil with a water content of 14% to 21% were uniformly mixed at a volume ratio of 1:1 to 1:1.3, and the medicinal dregs biochar soil mixture was artificially evenly spread on the surface of the rain-collecting ridge.

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Abstract

The invention discloses a planting method capable of collecting rainwater by using charcoal to cover furrows in a semi-arid area. The method comprises the steps of: constructing the furrows and forming ditches, performing fertilization, adopting the charcoal to cover the rainwater collecting furrows, performing sowing, performing field management, conducting harvest and carrying out maintenance after harvest is conducted. Through the method, increase of the soil temperature, improvement of soil fixation of biological nitrogen, improvement of the soil nutrient utilization rate, increase of soilmoisture, increase of the crop yield and reduction of runoff and water and soil loss are achieved; the annual average runoff efficiency of rainwater collecting furrows covered by a mixture of straw,charcoal and soil, rainwater collecting furrows covered by a mixture of animal manure, charcoal and soil and rainwater collecting furrows covered by a mixture of medicinal residues, charcoal and soilare 16.3%, 16.6% and 16.5% separately, and the yield of hay of Onobrychis viciaefolia is increased by 26.4%, 17.5% and 27.4% separately when compared with the yield obtained by using traditional farming of level culture.

Description

technical field [0001] The invention mainly relates to a planting method for rain collection in ridges and furrows, in particular to a planting method for rain collection in ridges and furrows covered with biochar in a semi-arid area. Background technique [0002] The hilly area of ​​the semi-arid Loess Plateau is short of water resources and is the center of dryland agriculture in my country. The crop production in this area mainly depends on natural precipitation. Global climate change, especially extreme drought and rainfall, has led to soil erosion in the region, resulting in soil degradation, environmental pollution, and terrain ravines. Monoculture and other cultivations have reduced the vegetation coverage and biodiversity in this area. Improving the utilization efficiency of precipitation resources and controlling soil erosion are ecological problems urgently needed for the sustainable development of agriculture and animal husbandry in this region (Ren X, Cai T, Che...

Claims

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Application Information

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IPC IPC(8): A01G22/20A01G22/25A01G22/40A01G13/02C09K17/04C09K109/00C09K101/00
CPCA01G22/20A01G13/0262A01G22/25A01G22/40C09K17/04C09K2101/00C09K2109/00
Inventor 张登奎王琦刘青林李富春杨军银
Owner GANSU AGRI UNIV
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