| Effect of deep application of organic materials on physical properties and yield of Chinese chestnut in cinnamon soil |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2018.06.21 |
| Key Words: organic materials soil aggregates moisture retention Chinese chestnut fruit yield |
| Author Name | Affiliation | | SONG Ying | Key Laboratory for Silviculture and Conservation, Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China | | GUO Su-juan | Key Laboratory for Silviculture and Conservation, Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China | | SUN Hui-juan | Key Laboratory for Silviculture and Conservation, Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China | | XIE Ming-ming | Key Laboratory for Silviculture and Conservation, Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China | | ZHANG Li | Key Laboratory for Silviculture and Conservation, Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China |
|
| Hits: 1145 |
| Download times: 484 |
| Abstract: |
| A field experiment was conducted to study the effects of deep application of organic materials on cinnamon soil aggregates distribution, soil moisture content, soil water potential, soil total porosity, and fruit yield in Chinese chestnut orchard, consequently, providing guidance for optimal use of organic materials in the soil. Castanea mollissima (Yanshan zaofeng) was selected as test crop. Five treatments, CK(no fertilizer), WJ(inorganic fertilizer with equivalent N, P, K nutrients), BYZ(compost of hulls and leaves of Castanea mollissima, fungus slag, corn stalks and chicken manure with equivalent nutrients), ZF(compost of fungus slag and chicken manure with equivalent nutrients), and BZ(composts of hulls and leaves of C. mollissima, fungus slag and chicken manure with equivalent nutrients) were carried out in this experiment. The results showed that major fractions of aggregates were the size ＞0.5 mm (31.46%~41.87%) and 0.053~0.25 mm (34.63%~49.98%). Soil moisture content and soil water potential increased first and decreased afterwards, then, increased with time, which reached the minimum in early July. Compared with CK and WJ treatments, under the organic materials treatments, the percentage of water-stable aggregate >0.5 mm increased by 7.10%~33.09% and 1.10%~25.84%, respectively, and the percentage of 0.053~0.25 mm water-stable aggregate decreased remarkably by 13.58%~30.72% and 5.08%~19.83%, respectively. The fruit yield, mean weight diameter (MWD), and the contents of macro-aggregates (R0.25) with the organic material application significantly increased in corresponding soil horizons (0~20 cm and 20~40 cm). Soil moisture content and total soil porosity generally distributed in the order of that in BZ＞BYZ＞ZF, which was consistent with fruit yield trend. The correlation analysis showed that average soil moisture and soil water potential in 20~40 cm soil horizon had significant positive correlated with fruit yield (P<0.05). The results also suggested that organic materials especially in BZ was a good addition for aerobic composting raw material system and deep application in given area significantly improved soil structure, soil water, and air characteristics. Thus, it resulted in the highest fruit yield among all treatments. |
|
|
|