Intercropping furrow irrigation method

A ridge and ridge technology, applied in the field of intercropping ridge and ditch irrigation, can solve the problems of increasing farmland water storage and winter irrigation, increasing the area of ​​soil water evapotranspiration, and adversely affecting the overall benefits of agriculture, so as to reduce ineffective surface evaporation and reduce Irrigated area and the effect of early sowing and early harvest

Inactive Publication Date: 2013-06-19
NORTHWEST A & F UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all: Compared with the traditional intercropping method, the decrease in the utilization rate of cultivated land caused by monocropping will inevitably lead to a decrease in the output per unit of cultivated land. On the one hand, it is not conducive to the improvement of the overall efficiency of agriculture, and on the other hand, it is not conducive to the coordination of the increase in demand for agricultural products. The contradiction with the continuous reduction of land resources; secondly, spring wheat, the main food crop in the irrigated agricultural areas of the Northwest arid area, emerges from late March to mid-July, and then the wheat fields are plowed and sunbaked, and the ground is exposed for nearly 7 months. Not only is it easy to cause serious wind erosion, but also the unevenness of the ground caused by the bare surface and plowing increases the evapotranspiration area of ​​soil moisture, resulting in a large amount of ineffective loss of soil water storage, which virtually increases the irrigation volume of farmland water storage and winter irrigation

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Examples

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Embodiment 1

[0032] The field planting diagram corresponding to the intercropping ridge and furrow irrigation method of this embodiment is as follows figure 1 As shown, the specific steps are as follows:

[0033] 1) In Wuwei Oasis, Gansu Province, farmland with uniform soil fertility and convenient irrigation was selected, and the land was prepared before crop sowing. Set up the ground treatment method before planting crops: traditional flat planting (TI) and ridges to make furrows, in which the ridges are trapezoidal ridges with a width of 60cm at the bottom of the ridge, and the width of the bottom of the ridge is 60cm (RF60), 75cm (RF75), and 90cm ( RF90) and 105cm (RF105), the height of the ridge is 15cm, and the angle between the edge of the ridge and the bottom of the ditch is 45°;

[0034] 2) During the wheat sowing period, wheat is sown on flat land according to the local traditional intercropping method (every 6 rows of wheat with a row spacing of 15cm is a wheat belt, and a corn...

Embodiment 2

[0042] The field planting diagram corresponding to the intercropping ridge and furrow irrigation method of this embodiment is as follows figure 2 As shown, the specific steps are as follows:

[0043] 1) After harvesting the winter wheat in Yangling, Shaanxi, select a farmland with uniform soil fertility and flatness for deep plowing. Set up the ground treatment method before planting crops: traditional flat planting (TI) and ridges to make furrows, in which the ridges are trapezoidal ridges with a width of 60cm at the bottom of the ridge, and the width of the bottom of the ridge is 60cm (RF60), 75cm (RF75), and 90cm ( RF90) and 105cm (RF105), the height of the ridge is 15cm, and the angle between the edge of the ridge and the bottom of the ditch is 45°;

[0044] 2) In the traditional flat planting described in step 1), arrange soybean strips and corn strips alternately (according to the mode that every four rows of soybeans with a row spacing of 25cm are a planting strip, an...

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Abstract

The invention discloses an intercropping furrow irrigation method which comprises the following steps: ridging and making channels in farmland and arranging at least two channels and three furrows, wherein each furrow is trapezoid, the bottom width of each channels is 60cm, the bottom width of each furrow is 60cm-105cm, the height of each furrow is 15cm-25cm, the included angle of each furrow side and each channel bottom is 30 degrees to 45 degrees; arranging the line spacing as 13cm-20cm if wheat is grown on the furrows, and arranging the line spacing as 20cm-30cm if soybean is grown on the furrow; growing two lines of corn in the channels, wherein the line spacing is 40cm-50cm, and the row spacing is 25cm-45cm; and irrigating farmland irrigation water in the channels when the crops are in the critical growth period. Compared with ground irrigation, by means of the intercropping furrow irrigation method, water can be saved by 30%-50%, yield can be increased by 10%-40%, the water use efficiency is obviously improved, and not only the economic benefits are significantly obtained, but also the resources can be saved. Therefore, the intercropping furrow irrigation method plays a significant role in stable and sustainable development of the agricultural ecosystem.

Description

technical field [0001] The invention relates to the field of crop cultivation and irrigation, in particular to an intercropping ridge and furrow irrigation method. Background technique [0002] The shortage of water resources in the northwest inland area has seriously affected the economic development of this area and caused serious ecological problems. However, under the situation that the contradiction between supply and demand of water resources is becoming increasingly acute, the problem of waste of water resources is still very serious. The pattern of intercropping of different crops has been particularly prevalent during the past few decades. Although this model has the characteristics of high yield and high benefit, the backward irrigation method of flood irrigation and extensive agricultural water management methods are typical highly intensive agriculture characterized by a large amount of water consumption, and become the ecological environment of the area. These ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G1/00
Inventor 赵西宁吴普特张凤云陈小莉
Owner NORTHWEST A & F UNIV
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