Effect of different planting methods on the grain yield and nutrient uptake of rice (Oryza sativa.L (original) (raw)
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Considering low organic matter level as an important production constraint, a field experiment was conducted for two consecutive kharif seasons (2009 and 2010) in farmers'field in a lateritic (TypicHaplusta$) soil in the Red and Laterite Zone of West Bengal to evaluate the influence of two green manures viz., Azolla and Sesbania, with or without integration with fertilizer nitrogen on growth and yield of two rice varieties viz., IR 36 and CN 907-6-2. While Azolla was applied (650 kgha-t) 5 days after transplanting of rice seedliirgs and allowed to grow simultaneously for 3 weeks before its incorporation into the field, Sesbania tops (2 t ha't) were applied 3 weeks before transplanting. Uniform doses of fertilizer P (50 kg PrO, hrr) and K(30 kg lqO ha-t; *ere apptied to each of the plots during final land preparation.
Evaluation of green manure technology in tropical lowland rice systems
Field Crops Research, 1999
Green manure (GM) is not superior to organic fertilizer in terms of agronomic ef®ciency. Use of GM destabilizes rice yield, and has higher unit production cost than N fertilizers. It produces higher cereal yields in farmers' ®eld, but gives negative or trivial returns in the short-term conditions. When compared with grain legumes (GL) grown under similar conditions, GM is not economical both in the short-and long-term conditions. Integrating GL in the existing cropping system without disturbing the main crops in the system appears to have a greater chance of adoption, and may also provide long-term economic bene®ts to low-land rice-based systems. The economic feasibility of GM can be improved by enhancing its use as food and feed, which will improve its short-term advantage. The lesson for developing technologies in future is that they should have economic bene®ts in the short-term, otherwise these will be rejected by farmers, despite their long-term advantages.
Journal of AgriSearch, 2018
Front Line Demonstrations with introduction of green manuring crop Dhaincha (Sesbaniarostrata) has been conducted by Krishi Vigyan Kendra, East Kameng district, Arunachal Pradesh, India. The soil was slightly acidic in reaction (pH 5.5 to 6.0), sandy loam in texture with rich in organic matter content, medium in phosphorous and potash content. Sesbania were sown@ 45 kg/ha. 8 weeks old green manuring crops were chopped into pieces and incorporated in the soil. With the incorporation of green manure crop, average rice yield was increased 25.5%.The average net return was recorded to be Rs. 29177,against the average net return of farmers' practice of Rs. 20863. The Organic Carbon content (%) and Available Nitrogen content (kg/ha) was increased considerably due to incorporation of green manure in rice field.
Scientific Reports
The combined use of organic manure and chemical fertilizer (CF) is considered to be a good method for sustaining high crop yields and improving soil quality. We performed a field experiment in 2019 at the research station of Guanxi University, to investigate the effects of cattle manure (CM) and poultry manure (PM) combined with CF on soil physical and biochemical properties, rice dry matter (DM) and nitrogen (N) accumulation and grain yield. We also evaluated differences in pre-and post-anthesis DM and N accumulation and their contributions to grain yield. The experiment consisted of six treatments: no N fertilizer (T1), 100% CF (T2), 60% CM + 40% CF (T3), 30% CM + 70% CF (T4), 60% PM + 40% CF (T5), and 30% PM + 70% CF (T6). All CF and organic manure treatments provided a total N of 150 kg ha−1. Results showed that the treatment T6 increased leaf net photosynthetic rate (Pn) by 11% and 13%, chlorophyll content by 13% and 15%, total biomass by 9% and 11% and grain yield by 11% and 1...
Residual Effects Of Organic Manures With Different Levels Of Chemical Fertilizers On Rice
A field experiment was conducted to evaluate the residual effects of organic manures and different level of recommended fertilizer dose (RFD) on the yield and nutrient uptake of BBRI dhan29 at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh, Bangladesh. The experiment containing seven treatments were laid out in a randomized complete block design with three replications. The treatments were T 0 (Control), T 1 (100% RFD), T 2 (75% RFD + residual effect of CD 5 t ha -1 ), T 3 (75% RFD + residual effect of PM 3 t ha -1 ), T 4 (75% RFD + residual effect of residual effect of Com. 5 t ha -1 ), T 5 (75% RFD + residual effect of CD 2.5 t ha -1 , PM 1.5 t ha -1, and Com 2.5 t ha -1 ) and T 6 (50% RFD + residual effect of CD 2.5 t ha -1 , PM 1.5 t ha -1 , and Com. 2.5 t ha -1 ). The manures viz. cowdung (CD), poultry manure (PD) and compost (Com.) was applied to the previous crop (T. Aman rice). The recommended doses of fertilizers were used to supply N, P, K and S @ 140, 15, 60 and 15 kg ha -1 , respectively to the present crop. Residual effects of organic manure with inorganic fertilizers significantly increased the yield attributes as well as grain and straw yields of rice. Treatment T 6 (50% RFD + residual effect of CD 2.5 t ha -1 , PM 1.5 t ha -1 , and Com. 2.5 t ha -1 ) produced the highest grain yield (6.87 t ha -1 ) and straw yield (7.24 t ha -1 ). The lowest grain yield (3.22 t ha -1 ) and straw yield (4.55 t ha -1 ) were found in T 0 (Control) treatment. Further, it was observed that T 2 (75% RFD + CD 5 t ha -1 ) performed better compared to T 3 (75% RFD + PM 3 t ha -1 ) and T 4 (75% RFD + Com 5 t ha -1 ) in exerting residual effects. The NPKS contents and uptake were markedly influenced by residual effects of manures and fertilizers. Therefore, treatment T 6 receiving 50% RFD along with the residual effect of 2.5 t ha -1 cowdung, 1.5 t ha -1 poultry manure and 2.5 t ha -1 compost was found to be the best combination of organic and inorganic fertilizers for obtaining the maximum yield of BRRI dhan29.
PLOS ONE, 2020
Excessive reliance on chemical fertilizer (CF) in conventional farming is a serious concern owing to its negative effects on soil health, the environment, and crop productivity. Organic manure is an alternative source of fertilizer to reduce the amount of CF usage in agriculture, decrease environmental pollution, and ensure sustainable crop production. This study assessed the integrated effect of poultry manure (PM) and cattle manure (CM) with CF on soil properties, plant physiology, and rice grain yield. Additionally, the difference in pre-and post-anthesis dry matter (DM) and nitrogen (N) accumulation and their relationship with grain yield was also determined. Pot experiments were performed in the early and late growing season at the experimental station of Guangxi University, China, in 2018. A total of six treatments, i.e., T 1-CF 0 ; T 2 −100% CF; T 3 −60% CM + 40% CF; T 4 −30% CM + 70% CF; T 5 −60% PM + 40% CF, and T 6 −30% PM + 70% CF were used in this pot experiment. Results showed that T 6 enhanced leaf photosynthetic efficiency by 11% and 16%, chlorophyll content by 8% and 11%, panicle number by 12% and 16%, and grain yield by 11% and 15% in the early and late seasons, respectively, compared to T 2. Similarly1, post-anthesis N and DM accumulation, N uptake, and soil properties (i.e., soil organic carbon, total N, and bulk density) were improved with integrated CF and manure treatments over the sole CF treatments. Interestingly, increases in post-anthesis N uptake and DM production were further supported by enhanced N-metabolizing enzyme activities (i.e., nitrate reductase, glutamine synthetase, and glutamate oxoglutarate aminotransferase during the grain-filling period in combined treatments. In-addition, the linear regression analysis showed that postanthesis DM (R 2 = 0.95) and N (R 2 = 0.96) accumulation were highly associated with grain yield of rice. Thus, the combination of 30% N from PM or CM with 70% N from CF (i.e., urea) is a promising option for improvement of soil quality and rice grain yield. Furthermore, our study provides a sustainable nutrient management plan to increase rice yield with high N use efficiency.
A judicious integration of inorganic fertilizers with organic residues, composts, biofertilizers and other plant tonics may help to improve crop yield and soil productivity in different cropping systems. A field experiment was planned at Rice Research Institute, Kala Shah Kaku, Pakistan involving the use of NPK fertilizers alone and in combination with green manure (Sesbania rostrata) or farm yard manure (FYM) or compost in rice-wheat cropping sequence to evaluate the effects of the substitution of inorganic fertilizers with organic manures on yield and yield attributes as well as economy of rice during 2009. Eight treatments comprising of T 1 : Green manure @ 12.5 t ha -1 , T 2 : FYM @ 12.5 t ha -1 , T 3 : Compost (rice and wheat crop straw/ residues) @ 12.5 t ha -1 , T 4 : NPK @ 133-85-62 kg N, P 2 O 5 and K 2 O ha -1 , T 5 : Green manure @ 12.5 t ha -1 + NPK @ 66-42-31 kg N, P 2 O 5 and K 2 O ha -1 , T 6 : FYM @ 12.5 t ha -1 + NPK @ 66-42-31 kg N, P 2 O 5 and K 2 O ha -1
International Journal of Environment and Climate Change
The present study conducted entitled, “Effect of Integrated use Organic manure and Bio-fertilizers on crop productivity under Rice (Oryza sativa L.) crop". Involved field trial conducted during Kharif season of year 2016-17 followed by laboratory analysis of the plant and soil samples in the Department of Soil science & Agriculture Chemistry, Udai Pratap Autonomous College, Varanasi (U. P). All grasses were removed from the experimental plots and soil samples have been taken from each replication plots at 30 DAT, 60 DAT and at harvesting. The experiment was conducted under randomized block design (RBD) with six treatment combinations. Treatments were replicated thrice making the total number of 18 plots. The effect of various treatments on dry matter production could be arranged in order of T6>T3>T5>T4>T2>T1 and the values were 70.25, 62.15, 59.45, 43.40, 41.25 and 35.59 gm-1 row length, respectively. Application of fertilizers alone or in combination with F.Y.M ...
Journal of Pharmacognosy and Phytochemistry, 2019
Field experiment was conducted at Agricultural College and Research Institute, Killikulam during Pishanam season (November- March) of 2015 – 2016. Higher Plant height, dry matter production, yield attributes realised superior grain yield and haulm yield with application of 75% N as inorganic fertilizer and 25% N as poultry manure (7160 kg/ha; 8090 kg/ha resp.) comparable with 25% N as vermicompost (6920 kg/ha; 7840 kg/ha resp.) and was followed 25% N as green leaf manure (6710 kg/ha; 7580 kg/ha). Higher physiological efficiency of 70.32 was attained when substituting 25% N as poultry manure and was followed by the same proportion of vermicompost. From the above results, it could be indoctrinated that application of 75 % of recommended N as inorganic fertilizer and substitution of 25% N either as poultry manure or green leaf manure is the desirable integrated nutrient management practice for achieving higher productivity under transplanted condition.