Estimation of crop loss

Pears (Pyrus spp.) are one of the most important fruit crops in temperate regions. Japanese pear breeding has been carried out for over 100 years, working to release new cultivars that have good fruit quality and other desirable traits. Local cultivar ‘Nijisseiki’ and its relatives, which have excellent fruit texture, have been repeatedly used as parents in the breeding program. This strategy has led to inbreeding within recent cultivars and selections.

12p vinarcissa 21-03-2023 2 1   Download

The human population on the planet is estimated to reach 9 billion by 2050; this requires significant increase of food production to meet the demands. Intensified farming systems have been identified as a viable means to increase grain production. Crop production inputs include carbon investment in the form of energy, for the manufacture and use of farm machinery, synthetic fertilizers, crop protection chemicals such as herbicides, insecticides and fungicides, groundwater irrigation and the direct use of fuel in farm operations.

26p caygaocaolon11 21-04-2021 24 2   Download

In India, presently about 35 to 40 per cent of the onion is estimated to be lost as postharvest losses during various operations including handling and storage. Serious losses occur during storage due to sprouting and rotting. Keeping this in view, an investigation was carried out to study the effect of different packing and storage methods on storage life of aggregatum onion cv. CO on 5.

12p chauchaungayxua11 23-03-2021 10 2   Download

The present study was undertaken with the main objective of generating data on the yield losses caused by lepidopteran pests in castor...

5p nguaconbaynhay7 15-08-2020 18 1   Download

Drought is the major abiotic stress that results in severe loss of yield to crops. It is estimated that there will be a steep rise in global water consumption in the coming years. On the other hand, it is also estimated that the sources of water will deplete due to rise in temperature and climate change. It is, therefore, critical to find out such genotypes of crops that have the ability to tolerate drought without much loss of yield.

20p caygaocaolon6 30-07-2020 5 1   Download

Soybean has great potential as an exceptionally nutritive and very rich protein food, which is one of the five most important oil seed crops of the world. Over hundreds of pathogens are known to affect soybean, of which 66 fungi, six bacteria and eight viruses have reported to be associated with soybean seeds. In India, losses due to various diseases are estimated as 12% of total production.

5p gaocaolon5 14-06-2020 6 1   Download

Rice is the most important staple food crop in the world particularly in South East Asia and gets infested with gall midge which is an important pest especially during rainy season with delayed sowings resulting in huge losses to the farmers in Northern Telangana Zone, India. Forty five genotypes were studied for the estimation of genetic variability at Agricultural Research Station, Kunaram, Telangana.

9p angicungduoc5 12-06-2020 21 1   Download

In order to understand seasonal incidence, crop loss estimation and management of yellow stem borer Scirpophaga incertulas (walker) on paddy, studies were conducted during 2015 at ZAHRS, College of Agriculture, Shivamogga. The highest incidence of dead heart and white ear was noticed during third week of April and third week of May.

10p kethamoi5 03-06-2020 6 1   Download

Cotton is the dominant textile crop and also serves as an important oil crop. An estimated 15% economic loss associated with cotton production in China has been caused by diseases, and no resistance genes have been cloned in this crop.

9p viminato2711 22-05-2020 12 1   Download

Insects cause great damage to agricultural crops. A secondary effects of pest is viral, bacterial and fungal infection where are facilitated by the damages and injured to crop plants by insects and mites. The yield loss of crops by nibbling, injury and growth retardation is estimated to be 20% - 30%. An additional 10% is lost during post harvest storage and transportation. Decrease in crop quality causes further economic loss.

15p trinhthamhodang5 16-05-2020 8 1   Download

The present study was carried out to make a suitable forecast model that predicts yield loss occurred due to weeds in wheat crop. The data were taken from the annual report of AICRP-WM centres. Gwalior and Pusa are the two centres in which the work has been carried out. Weed density and weed dry weight were two weed infestation measurements that were considered for model fitting.

5p chauchaungayxua5 08-05-2020 11 1   Download

Among the food crops, rice is the mainstay of the sustenance of Asia’s population since long. Therefore, smart rice research is needed to make the rice production systems economically and ecologically sustainable. Weeds are known to be a major biotic constraint in agricultural production systems. Of the total annual loss of agricultural produce from various pests in India, weeds accounts for 45%, insect 30%, diseases 20% and other pests 5% (Rao, 1983). In India, yield loss due to weeds in transplanted rice was estimated to the tune of 30.

15p chauchaungayxua5 05-05-2020 7 1   Download

Soil erosion is the common land degradation problem in the worldwide, and also is one of the most critical environmental hazards of recent times, which reduces productivity. Assessment of soil erosion is expensive and intensively long exercise. In the present study an USLE model has been used for estimation of soil loss for Raigad district of Konkan region of Maharashtra.

12p chauchaungayxua4 18-03-2020 13 0   Download

Rice is one of the main crops in Raichur district of Karnataka. During harvesting season, shortage of labour demands suitable machinery in this region. Field evaluation trials of self-propelled type small combine harvester for harvesting of rice crop were carried out and the results were compared with manual rice harvesting method. Studies on conventional method of rice harvesting revealed that, the average field capacity of conventional method was 0.009 hectare per hour and the average total grain loss was found to be 11.16 per cent.

12p cothumenhmong3 22-02-2020 15 2   Download

Chickpea is a cool season pulse and suffers severe yield losses when exposed to higher temperatures during reproductive phase. Stable chickpea production will depend on the release of new cultivars with improved adaptation to drought and high temperature. Twenty five breeding lines of two crosses JG 11 x JG 14 and JAKI 9218 x JG 14 were assessed under timely and late sown situations. High variability was observed for majority of the traits in both the seasons.

8p cothumenhmong3 22-02-2020 18 0   Download

Viral diseases are one of the major factors threatening crop production worldwide. It is estimated that about 15 percent of global crop production is lost due to various plant diseases, and phytopathogenic viruses are thought to cause more than one third of plant diseases. Viruses such as TYLCV, PRSV, CMV, BBTV are some major virus epidemics which cause heavy losses in horticultural crops. Management of plant virus diseases have acquired great importance in the realm of Plant Pathology and call for effective management against them.

14p chauchaungayxua3 07-02-2020 11 0   Download

The present study on post-harvest losses during the marketing of large cardamom and ginger spices crops in the East district of Sikkim state was initiated during the year 2017 to 2019 with the selection of 80 numbers of respondents and it was categorized into three groups viz., marginal. Small and semi-medium size groups based on available cultivable land under the both selected spices crops. To achieve the specific objectives of the present study a multi stage purposive stratified random sampling method was adopted.

9p nguathienthan2 19-12-2019 13 1   Download

Availability of adequate farm power is very crucial for timely farm operations for increasing production and productivity and handling the crop produce to reduce losses along with enhancing the economic status of the farmers. Thus, it is essential to estimate the farm power requirement so that future strategies may be formulated accordingly. Considering, this study was conducted for Godhra taluka of Panchmahal district by collecting data from secondary sources regarding land holding pattern, animal census, farm power implements used and area under different crops.

15p kethamoi2 15-12-2019 16 2   Download

Soil loss was estimated from agricultural lands of South Andaman district in tropical Bay Islands applying Universal Soil Loss Equation (USLE). Mean annual rate of soil loss to the tune of 184.1 X 103 tons was estimated from the crop fields of the district covering 1747.0 ha area at the rate of 105.38 t ha-1 yr-1 . In South Andaman district, kharif crops (rice, maize, arhar, ground nut, ginger, sweet potato, tapioca and turmeric) are grown in medium to low lands whereas rabi crops (pulses and vegetables) are grown in uplands. The cropping intensity is 104.0%. Maximum (136.

9p kethamoi2 14-12-2019 21 1   Download

The study conducted in the state of Bihar has examined, the quantity losses other than consumption for lentil crop amongst different farm size groups. It has found that at overall level 46.91 percent of the total lentil crop produced was available as marketable surplus. At the overall level study finds about 19.56 percent of the total lentil produce goes wastage as seed, feed, and wastage however only 80.44 percent available for consumption purpose.

8p kequaidan2 13-12-2019 9 0   Download