scholarly journals Multiple Leveling for Paddy Field Preparation with Double Axis Rotary Tillage Accelerates Rice Growth and Economic Benefits

Agriculture ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1223
Author(s):  
Yifu Zhang ◽  
Jian Liu ◽  
Wei Yuan ◽  
Ruihong Zhang ◽  
Xiaobo Xi
Keyword(s):  
Paddy Field ◽  
Southern China ◽  
Cropping Systems ◽  
Economic Benefits ◽  
Rice Cultivation ◽  
High Yield ◽  
Dry Matter Accumulation ◽  
Multiple Cropping ◽  
Land Preparation ◽  
Rice Growth

In the multiple cropping regions of southern China, straw returning has become a widely practiced agronomic measure for rice cultivation. However, excessive straw often leads to a high proportion of stubble in topsoil, which prolongs the leveling time of the paddy field and delays the transplanting date for rice seedlings. In particular, scholars in this region have successively improved multiple paddy field levelers to realize excellent straw returning and subsequent land preparation synchronously, but the economic benefit from land preparation to crop harvest was less reported. Therefore, this study carried out a 2-year rice cultivation experiments to compare the effects of paddy field preparation methods on rice growth and economic benefits within the same growing duration. Three treatments were designed: traditional tillage (TT), double axis rotary tillage (DR) and multiple operations for paddy field preparation (DR + ML), with three repeats. The results showed that DR + ML treatment simplified the operation process while improving the quality of land preparation. Within the same growing duration, DR + ML treatment could reduce the paddy field preparation time and extend the growing time in the field by 5–6 days. Furthermore, in comparison to TT treatment, DR + ML showed advantages in stimulating plant development, increasing dry matter accumulation (DMA), and thereby increasing rice yield by more than 12%. The economic benefits were mainly reflected in saving operation cost of paddy field preparation and improving the output (grain yield), which can generally increase the total profit by 58%. The implementation of this study can provide a reference for a simplified high yield cultivation technique in rice-related multiple cropping systems.

scholarly journals Yield Advantage of a Maize-peanut Intercropping System

2021 ◽  
Author(s):  
Yan-hong Li ◽  
Lei Wang ◽  
De-yang Shi ◽  
Shu-ting Dong
Keyword(s):  
Economic Benefits ◽  
High Yield ◽  
Dry Matter Accumulation ◽  
Ecological Benefits ◽  
Yield Efficiency ◽  
Isotope Tracer ◽  
Planting Methods ◽  
Early Maturing ◽  
Labelling Method ◽  
Corn Hybrid

Abstract Maize-peanut intercropping is an important element of China’s agricultural planting model, as it confers ecological benefits, promotes species diversity, and increases economic efficiency and yield. The aim of this study was to explore the yield differences between intercropping and monoculture, and to determine the mechanism underlying the high yield efficiency of the intercropping system using the 13C isotope tracer labelling method. The early maturing corn hybrid Denghai 618 and the early maturing and high-yielding peanut variety Huayu 22 were used as test materials. Three kinds of planting methods were employed, i.e. the sole maize (SM), the sole peanut (SP) and maize–peanut intercropping (intercropped maize, IM; intercropped peanut, IP), for two consecutive years. IM increased yield by 59.7% and 62.3% comparing with SM in 2015 and 2016, respectively. IP reduced yield by 31.3% and 32.3% comparing with SP in 2015 and 2016, respectively. IM significantly increased the photosynthetic rate, leaf area, 13C assimilation distribution, and dry matter accumulation of summer maize, which led to an increase in kernel number, resulting in an increased yield. The decrease in intercropped peanut yield was mainly caused by a decrease in the percent of plump pod and number of pods per plant. The decrease in peanut yield did not affect the production of intercropping, because of the large intercropping advantage and land equivalence ratio. Maize-peanut intercropping provided greater economic benefits than monoculture. These results showed the utility of the peanut-maize intercropping model.

Entropy Coefficient Assessment of Mulch Drip Irrigation Scheme in Tobacco Fields

2013 ◽  
Vol 726-731 ◽  
pp. 3077-3083 ◽  
Author(s):  
Xue Wang ◽  
Yu Min Yan
Keyword(s):  
Drip Irrigation ◽  
Comprehensive Evaluation ◽  
Southern China ◽  
Irrigation Treatment ◽  
Economic Benefits ◽  
High Yield ◽  
Maturity Stage ◽  
Irrigation Scheme ◽  
Entropy Weight ◽  
Subjective Weight

In order to find the optimum mulch drip irrigation scheme in tobacco fields of southern China plain, the flue-cured tobaccos were treated with different water and nitrogen levels, the yield, WPc, and the economic benefits (EIRR, ENPV, EBCR) were calculated, then the PCA model and the entropy weight coefficient method were introduced in order to select the preferable pattern of mulch drip irrigation. Results showed that: the application of mulch drip irrigation obtained the predicted effects, which improved the yield of flue-cured tobaccos and achieved satisfactory economic benefits; the entropy weight method was appropriate for the comprehensive evaluation of the mulch drip irrigation scheme in tobacco fields of southern China, which could combine the objective weight with the subjective weight, reducing the arbitrariness of using only objective weight or only the subjective weight; the optimum mulch drip irrigation treatment was T5, with the entropy weight value of 0.921; followed by T9; T2 was the poorest. Therefore, drip irrigation with 12mm, 16mm, and 12mm each time during root-extending stage, vigorous stage and maturity stage, and N fertilizer amount with 83.3kg/hm2could be applied as the water-nitrogen scheme, serving for the production of tobaccos with good quality and high yield under mulch drip irrigation construction in southern China plain.

scholarly journals PERSEPSI PETANI TERHADAP TEKNOLOGI “PANCA KELOLA” DI LAHAN RAWA BEKAS TERBAKAR (Kasus lahan gambut bekas terbakar Desa Talio Hulu Kecamatan Pandih Batu Kab. Pulang Pisau)

2021 ◽  
Vol 46 (3) ◽  
pp. 408
Author(s):  
Yanti Rina Darsani ◽  
Yiyi Sulaeman ◽  
Masganti Masganti
Keyword(s):  
Rice Production ◽  
Rice Cultivation ◽  
Yield Potential ◽  
Primary Data ◽  
High Yield ◽  
Survey Method ◽  
Urea Fertilizer ◽  
Land Preparation ◽  
Management Technology ◽  
Cultivation Technology

To understand the potential for increasing rice production on burnt peatlands, a demo farm (demonstration of grouped farming and fishing) which is a collaboration between Balittra and BRG which covers an area of 38 ha in Talio Hulu Village, Pandih Batu District, Pulang Pisau Regency, Central Kalimantan in 2020-2021. This study aims to discover the farmers' perceptions of the technology components and performance of rice cultivation technology. The activities have been carried out on farmers' land by applying “Five Management” technology include (1) water management techniques; (2) land preparation, (3) amelioration and fertilization (4) utilization of new high yielding varieties with high yield potential, and (5) integrated pest and disease control. Data were collected from 24 cooperating farmers by survey method. Primary data were collected by conducting direct interviews with farmers using a structured questionnaire. The data collected was tabulated and analyzed descriptively. The results showed that burned peatlands have the potential to increase rice production. The results showed that burned peatlands have the potential to increase rice production.. The response of farmers to the components of rice cultivation technology is positive. The five technology components that have the highest value with a value of 95.83% are (1) water regulation in paddy fields, (2) the utilization of ash and urea fertilizer in the nursery, (3) the utilization of manure and lime as ameliorant, (4) the utilization of urea fertilizer, SP-36, and NPK, and (5) the utilization of natural phosphate. The farmer's perception of the Five Management technology is positive.  Economically, rice farming of the Inpara 2 variety is efficient (R/C = 1.14). 

scholarly journals Integrating Straw Management and Seeding to Improve Seed Yield and Reduce Environmental Impacts in Soybean Production

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1033
Author(s):  
Cailong Xu ◽  
Ruidong Li ◽  
Wenwen Song ◽  
Tingting Wu ◽  
Shi Sun ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Soil Temperature ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Dry Matter ◽  
Management Practice ◽  
Cropping Systems ◽  
Dry Matter Accumulation ◽  
Multiple Cropping ◽  
Area Index

Multiple cropping systems boost grain yields and have an immense potential to increase land productivity. In such cropping systems in China, soybean is directly seeded after the wheat harvest in early June. After the wheat harvest, the farmland has low amounts of soil moisture and contains large amounts of wheat straw, which negatively affect soybean growth and yields. To address these challenges, an integrated management practice (IMP) than can achieve precise direct seeding and straw mulching return, was developed. In this study, differences in the soil temperature and moisture, seedling quality, dry matter accumulation, soybean yield, and greenhouse gas emissions were investigated between IMP and the farmers’ practices (FP). Compared with the FP treatment, IMP significantly increased the soil moisture and decreased the soil temperature in the topsoil layer. In addition, under the IMP treatment, the rate of emergence and developmental uniformity of soybean plants significantly increased by 21.7% and 99.5%, respectively, thus increasing the leaf area index by 30.0% and dry matter accumulation by 12.0% and, in turn, increasing soybean yields by 24.7%. A principal component analysis showed that the dry matter weight, relative water content, leaf area index, and developmental uniformity were strong sensitivity indices for the IMP treatment. In addition, the intensity of emission of N2O and greenhouse gases under IMP both decreased significantly by 25.1% and 28.9% compared with the FP, respectively. Thus, it was concluded that IMP is a suitable farming practice for sustainable agricultural production, and it has broad prospects for application in wheat–soybean double cropping systems in China and other similar areas globally.

Functional soil organic matter fractions in response to long-term fertilizer management in a double-cropping paddy field of southern China

2021 ◽  
pp. 1-9
Author(s):  
Haiming Tang ◽  
Chao Li ◽  
Lihong Shi ◽  
Li Wen ◽  
Kaikai Cheng ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Paddy Field ◽  
Southern China ◽  
Rice Paddy ◽  
Chemical Fertilizer ◽  
Protection Mechanism ◽  
Rice Paddy Field ◽  
Double Cropping

Abstract Soil organic matter (SOM) and its fractions play an important role in maintaining or improving soil quality and soil fertility. Therefore, the effects of a 34-year long-term fertilizer regime on six functional SOM fractions under a double-cropping rice paddy field of southern China were studied in the current paper. The field experiment included four different fertilizer treatments: chemical fertilizer alone (MF), rice straw residue and chemical fertilizer (RF), 30% organic manure and 70% chemical fertilizer (OM) and without fertilizer input as control (CK). The results showed that coarse unprotected particulate organic matter (cPOM), biochemically, physically–biochemically and chemically protected silt-sized fractions (NH-dSilt, NH-μSilt and H-dSilt) were the main carbon (C) storage fractions under long-term fertilization conditions, accounting for 16.7–26.5, 31.1–35.6, 16.2–17.3 and 7.5–8.2% of the total soil organic carbon (SOC) content in paddy soil, respectively. Compared with control, OM treatment increased the SOC content in the cPOM, fine unprotected POM fraction, pure physically protected fraction and physico-chemically protected fractions by 58.9, 106.7, 117.6 and 28.3%, respectively. The largest proportion of SOC to total SOC in the different fractions was biochemically protected, followed by chemically and unprotected, and physically protected were the smallest. These results suggested that a physical protection mechanism plays an important role in stabilizing C of paddy soil. In summary, the results showed that higher functional SOM fractions and physical protection mechanism play an important role in SOM cycling in terms of C sequestration under the double-cropping rice paddy field.

scholarly journals Appraisal of cowpea cropping systems and farmers’ perceptions of production constraints and preferences in the dry savannah areas of Nigeria

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Saba Baba Mohammed ◽  
Daniel Kwadjo Dzidzienyo ◽  
Muhammad Lawan Umar ◽  
Mohammad Faguji Ishiyaku ◽  
Pangirayi Bernard Tongoona ◽  
...  
Keyword(s):  
Plant Density ◽  
Insect Pests ◽  
Cropping Systems ◽  
Pairwise Comparison ◽  
High Yield ◽  
Crop Failure ◽  
Production Constraints ◽  
Cowpea Varieties ◽  
Breeding Programmes ◽  
Sole Cropping

Abstract Background Low plant density and wide intra-plant spacing in traditional cowpea cropping systems are among the factors responsible for low yield on farmers’ fields. Sole cropping and improved intercropping systems have been advocated in the last few years to increase yield in the dry savannah areas of Nigeria. This study investigated the level of adoption of high yielding cowpea cropping systems including factors that influenced their use and farmers’ perceived production constraints and preferences. A total of 420 farmers across 36 villages of northern Nigeria were interviewed, and data collected was analyzed using descriptive statistics to appraise farmers predominant cowpea cropping systems and factors that determine the use of sole versus intercropping were identified with the aid of binary logit regression. Furthermore, pairwise comparison ranking was deployed to understand farmers’ view of cowpea production constraints and preferred traits. Results The results revealed that, many of the farmers (42%) still grow cowpeas in the traditional intercropping and a good number (25%) cultivate the crop as a sole crop, while 23% had fields of cowpeas in both sole and intercropping systems. Farmers reported the incidence of high insect pests, limited access to land, desire to have multiple benefits, and assurance in the event of crop failure as reasons for preference for intercropping over sole planting. The pairwise comparison ranking of constraints and preferences revealed insect pests, Striga, drought and poor access to fertilizers as major constraints to increased productivity. Many farmers indicated high yield as the most preferred trait. Conclusions Findings indicate a need for increased education and training of cowpea farmers on the importance of growing cowpeas in sole cropping and or improved intercropping systems. Genetic improvement efforts should focus on developing cowpea varieties that address farmers production constraints and reflect the diversity of consumers’ preferences for the crop. Hence, breeding for resistance to insect pests and high yield is recommended as an important priority of cowpea breeding programmes in the region.

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