Method for planting horsebean intercropped with corn

A planting method, broad bean technology, applied in the field of crop cultivation, can solve the problems of reducing the total amount of nitrogen fixation, reducing the output of leguminous crops, increasing the yield, etc., achieving the effect of increasing the amount of biological nitrogen fixation, saving planting costs, and reducing operation steps

Inactive Publication Date: 2009-05-27
CHINA AGRI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, there are the following problems: (1) due to soil characteristics, competition of indigenous microorganisms, etc., in order to make the inoculated rhizobia into a dominant population, it must be inoculated continuously for many years, and the cost is high; , but it is also difficult to increase the yield on the basis of monoculture; (3) Intercropping has a long history in agricultural production, and it is also used as a method to make full use of biological nitrogen fixation resources. However, when planted together with non-legume crops , the competition of leguminous crops for soil nutrients is generally at a competitive disadvantage, which is likely to cause a reduction in the yield of legume crops. Although the proportion of biological nitrogen fixation to the total nitrogen accumulation increases, the total nitrogen fixation per unit area decreases

Method used

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  • Method for planting horsebean intercropped with corn
  • Method for planting horsebean intercropped with corn
  • Method for planting horsebean intercropped with corn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 Broad bean and corn intercropping and broad bean, corn single crop contrast test

[0017] 1. The test method includes the following steps:

[0018] (1) General situation of the experimental site.

[0019] The experiment was carried out in Baiyun Village (38°37''N, 102°40'E), Yongchang Town, Wuwei City, Gansu Province in 2004. The village has an altitude of 1504m, a frost-free period of about 150 days, annual rainfall of 150mm, annual evaporation of 2021mm, annual average temperature of 7.7°C, sunshine hours of 3023h, effective accumulated temperature of ≥10°C of 3016°C, and annual total solar radiation of 140-158kJ / cm 2 , the effective accumulated temperature of ≥10°C after wheat harvest is 1350°C, which belongs to a typical natural ecological zone where two seasons are insufficient and one season is more than enough. The soil for the test is calcareous irrigated desert soil, the surface soil is light soil, the plow layer soil contains 88.9mg / Kg of alkalin...

Embodiment 2

[0039] Embodiment 2 Broad bean and corn intercropping and broad bean, corn single crop comparative test

[0040] 1. Test method

[0041] (1) General situation of the test site.

[0042] The experiment was carried out in Baiyun Village (38°37''N, 102°40'E), Yongchang Town, Wuwei City, Gansu Province in 2006. Every index is with embodiment 1.

[0043] (2) Test materials.

[0044] The broad bean used in the experiment was Lincan 5, sown on March 18, 2006, and harvested on August 1, 2006. The corn was Shendan No. 16, sown on April 19, 2006, and harvested on October 4, 2006.

[0045] (3) Experimental design and field management

[0046] The experiment adopted a split-plot design, the main treatment was nitrogen gradient, and the secondary treatment was planting method, with 3 repetitions. Nitrogen level set 3 gradients: 0, 75kg hm -2 、150kg·hm -2 , the phosphate fertilizer is 75kg·hm -2 . 3 planting methods: broad bean monoculture, corn monoculture and broad bean / corn int...

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Abstract

The invention discloses a broad bean and corn intercropping method and belongs to the field of crop cultivation methods. The method mainly relates to intercropping of the broad bean and the corn, wherein, emergence of seedlings of the broad bean is 10-20 days earlier than that of the corn, the broad bean and the corn are intercropped at a row ratio of 2:2 and at a row spacing from 28cm to 32cm. The method can help realize the purpose of simultaneously improving yield of the broad bean and biological nitrogen fixation amount, avoid the disadvantages of low yield of a leguminous crop which is cropped separately; secondly, the method can greatly reduce manually applied nitrogen fertilizer to save the plantation cost, and relieve the pressure on the environment due to nitrogen fertilizer abuse; furthermore, the method can adequately utilize indigenous rhizobium to avoid a degeneration problem of artificially inoculated strains, reduce operation steps such as inoculation and the like and save the inoculation cost.

Description

technical field [0001] The invention belongs to a method for cultivating crops, and in particular relates to a method for intercropping broad beans and corn. Background technique [0002] Biological nitrogen fixation is a cheap, clean, environmentally friendly and sustainable nitrogen resource. At present, the use of biological nitrogen fixation in agricultural production is mainly realized by planting leguminous crops. In order to improve the biological nitrogen fixation efficiency of leguminous crops, the approaches that can be taken include: inoculating rhizobia or combining nitrogen-fixing bacteria ("Rhizobia for enhancing nitrogen-fixing ability" (application number: 02813817.1); "A nitrogen-fixing bacteria microbial fertilizer and its preparation method "(Patent No.: ZL97117251.X)), crop rotation with non-legume crops (Peoples et al. Plant and Soil, 1995, 174:83-101), etc. However, there are the following problems: (1) due to soil characteristics, competition of indi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01C21/00
Inventor 李隆张福锁范分良李白李玉英
Owner CHINA AGRI UNIV
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