scholarly journals Integrated Nutrient Management to Enhance On-Farm Productivity of Rain Fed Maize in India

2010 ◽  
Vol 5 (4) ◽  
pp. 216-225 ◽  
Author(s):  
B.K. Rajashekhara Rao ◽  
K.L. Sahrawat ◽  
S.P. Wani ◽  
G. Pardhasara
2005 ◽  
Vol 86 (2) ◽  
pp. 144-165 ◽  
Author(s):  
A.O. Esilaba ◽  
J.B. Byalebeka ◽  
R.J. Delve ◽  
J.R. Okalebo ◽  
D. Ssenyange ◽  
...  

2021 ◽  
Vol 57 (4) ◽  
pp. 89-92
Author(s):  
Amrit Kumar Jha ◽  
Anjani Kumar ◽  
Birendra Kumar Mehta ◽  
Maya Kumari ◽  
Kaushik Chatterjee

On-farm trial was conducted to assess the Integrated Nutrient Management (INM) techniques on yield of rice and soil health after harvest during 2018-19 and 2019-20 at ten locations. The result of three treatments viz. Farmer’s Practice, Technology Option 1 and Technology Option 2 indicated that TO1 and TO2 significantly increased the yield and yield attributing characters over farmer’s practice (FP). Significantly high yield of rice grain (41.2 q per ha) was recorded with INM techniques. The data on available N, P and K status of soil after harvest of rice crop was significantly higher under TO2 as compared to FP. Highest net-return (Rs. 44,214 per ha) with B:C ratio of 2.44 was reported under TO2. INM techniques also resulted in lowest technology gap (8.78 q per ha) and technology index (17.56%) over other treatments which suggests it’s feasibility at farmer’s field.


2021 ◽  
Vol 23 (2) ◽  
pp. 45-49
Author(s):  
SK Bhowal ◽  
MH Hossain ◽  
MM Bashir

Field experiments were conducted at Multi Location Testing (MLT) sites of Chandina and Debidwer of Cumilla district, and Kasba of Brahmanbaria district under on-farm research division (OFRD), Bangladesh Agricultural Research Institute, Cumilla during 2016-18 to find out the appropriate dose of fertilizer for the maximum productivity of hybrid cauliflower varieties. Five integrated nutrient management packages  such as T1= Recommended fertilizer dose for high yield goal (HYG), viz. 40-20-38-7-0-0 NPKSZnB Kg ha-1, T2= T1 + 1.5 t ha-1 vermicompost, T3 = T1 + 5 t ha-1 cowdung, T4= STB  (107-61-107-30-3.0-1.0 NPKSZnB Kg ha-1 and T5= Farmers practices  (114-74-123.5-0-0 NPKSZnB Kg ha-1) were used in the trial. The experiment was laid out in a Randomized Complete Block (RCB) design with six dispersed replications. The result revealed that the highest curd breadth (21.68 cm), individual curd weight (1.86 Kg) and curd yield (44.14 t ha-1) was obtained from T2 treatment followed by T3 and T4 treatments. The lowest yield was found from farmers practice. Similarly the highest gross return (Tk. 626669.00 ha-1) and gross margin (Tk. 493869.00 ha-1) were also found from T2 treatment and the lowest (Tk. 457734.00 ha-1 and 438066.00 ha-1) respectively from  farmer's practice T5. Bangladesh Agron. J. 2020, 23(2): 45-49


2001 ◽  
Vol 16 (4) ◽  
pp. 161-167 ◽  
Author(s):  
Charles S. Wortmann ◽  
Henry Ssali

AbstractResource-poor farmers often have diverse but small quantities of materials available that might be used to manage soil fertility. Opportunity costs of money are very high and farmers often opt to invest their scarce financial resources elsewhere rather than in fertilizer. This paper presents an approach to adaptive research and technology dissemination that was applied in Uganda and is applicable for improvement of integrated nutrient management (INM) in resource-poor farming systems. While little information may be available from research conducted in a particular agroecological zone (AEZ), information on INM components from diverse sources may be applicable for major crops in that AEZ. This information must be compiled and subjected to agronomic and economic analysis. A conceptual framework, e.g., in the form of a tentative decision guide, is then constructed, with consideration of interactions among nutrient sources, given the farmers' situations. Researchers estimate the most likely rates of application and substitution ratios, and then judge their confidence in the estimates. Priority actions are then identified for research and extension. When confident of their estimates, researchers formulate recommendations for promotion through extension means. If confidence is lacking, on-farm verification trials or other research may be needed. The approach is illustrated by work done for one AEZ in Uganda for maize and dry bean production, but is intended for application to other resource-poor farming systems in eastern Africa.


2017 ◽  
Vol 4 (03) ◽  
Author(s):  
SAMBORLANG K. WANNIANG ◽  
A. K. SINGH

A field experiment was conducted during kharif 2011 on experimental farm of the College of Post Graduate Studies (CAU–Imphal), Umiam (Meghalaya) to evaluate the effect of integration of green manuring, FYM and fertilizers as integrated nutrient management (INM) practices on growth and developmental behaviour of quality protein maize cultivar QPM 1. The data revealed that comparatively higher amount of primary nutrients were added in green manured maize plots in comparison to non green manured treatments. Green manuring also left a positive response on plant height, CGR, RGR leaf area, and dry matter accumulation in plants though the difference between green manured and non-green manured treatments was at par. Treatments 75 % RDF + 5 t FYM ha-1, 50 % RDF + 7.5 t FYM ha-1, 100 % RDF ha-1 and 75 % RDF + 2.5 t FYM ha-1 recorded significantly higher values of all the above said growth parameters over 50 % RDF + 5 t FYM ha-1 and control treatments. At all stages of observations, the maximum dry matter was associated with RDF (recommended doses of fertilizers) which was at par with 75 % RDF + 5 t FYM ha-1, but significantly higher over the plant dry weight recorded from all remaining treatments. A Significant difference in CGR at 30 – 60 and 60 – 90 DAS stage and in RGR at 90 DAS - harvest stage was observed due to various combinations of recommended dose of fertilizer with different doses of FYM. Number of days taken to attain the stages of 50% tasselling, silking and maturity did not differ significantly due to green manuring. However, treatment 75 % RDF + 5 t FYM ha-1 took significantly lesser number of days for these stages than other treatment combinations. The superiority of the treatment 75 % RDF + 5 t FYM ha-1 indicated a possibility of substituting 25% of RDF with 5 t FYM ha-1 without any loss in dry matter accumulation in plants of the quality protein hybrid maize in mid-hill ecosystems of Meghalaya.


Author(s):  
Caroline Dubbert ◽  
Awudu Abdulai

Abstract Many studies show that participation in contract farming has positive impacts on farm productivity and incomes. Most of the literature, however, does not take into account that contracts vary in their specifications, making empirical evidence scarce on the diverse impacts of different types of contracts. In this study, we investigate the driving forces of participation in marketing and production contracts, relative to spot markets. We also study the extent to which different contract types add additional benefits to smallholder farmers, using recent survey data of 389 cashew farmers in Ghana. To account for selection bias arising from observed and unobserved factors, we apply a multinomial endogenous switching regression method and implement a counterfactual analysis. The empirical results demonstrate that farmers who participate in production contracts obtain significantly higher cashew yields, cashew net revenues, and are more food secure compared to spot market farmers. We also find substantial heterogeneity in the impact of marketing and production contracts across scale of operation. Small sized farms that participate in production contracts tend to benefit the most. Marketing contracts, however, do not appear to benefit cashew farmers.


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