Effects of Different Mulching Materials on Soil Moisture and Heat Status,Growth of Mung Bean in Arid Region of Northern Shaanxi
To screen suitable high-yield and high-efficiency mulching cultivation methods for mung bean cultivation in the arid regions of northern Shaanxi,nine mulching treatments were set up:0.012 mm black com-mon mulch cover(BP1),0.010 mm black common mulch cover(BP2),0.008 mm black common mulch cover(BP3),0.008 mm black water-permeable degradable mulch cover(BD),0.012 mm white common mulch cover(WP1),0.010 mm white mulching film(WP2),0.008 mm white common mulching film(WP3),0.008 mm white water-permeable degradable mulching film(WD),with an open field as control(CK).The effects of these treatments on soil hydrothermal status,agronomic traits,and mung bean yield were investigated.The results showed that at the mature stage of mung beans,the soil water content of CK and WD treatments was significantly lower than that of other treatments except for WD by 0.30％～4.22％.The average soil temperature in the 0～20 cm layer of each mulching treatment was 0.59～2.56℃ higher than that of CK.Plant height in-creased by 1.99％～7.09％compared to CK.All mulching treatments significantly increased mung bean yield compared to CK,with WP2 showing the highest yield,387.47％greater than CK.WP2 also had the highest number of pods per plant and grains per pod.Therefore,it is recommended to promote the use of white mulching film with a thickness of 0.010 mm in mung bean production.
Mung beanNorthern Shaanxi arid regionDifferent colorThick material mulching filmYield
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万方数据
