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What were the advantages of the use of mechanical harvesting machines in USA?

The advantages of the use of mechanical harvesting machines in the USA were: The price of wheat was high and demand limitless. These new machines allowed farmers to quickly clear tracts, break up the soil, remove the grass and prepare the ground for cultivation.

What are the advantages of mechanical harvesting?

The main advantage of mechanical harvesting is that these machines can harvest fruit and vegetables within short periods of time. For example, nut harvesters can remove most of the nuts from the tree within a few minutes.

What are the advantages and disadvantages of manual and mechanical harvesting?

Answer. Fruits and vegetables can be selected more precisely at the optimal maturity stage compared to mechanical harvesters. Fruit and vegetables are carefully handled and therefore damage is minimized. Manual harvesting requires minimum capital investment, but it can be expensive in the long-term.

What is the disadvantage of mechanical seeder?

Extremely tedious and time consuming. It is not practical to use on large scale area of rice. It is difficult to distinguish weed seedlings from rice seedlings at early stage of growth and uprooting or damaging rice cannot be avoided. This occurs particularly in direct-seeded rice.

What are the two most common disadvantages of manual weeding?

Answer: Labor-intensive and time-consuming. High drudgery and stress on labor (bending all the time to remove weeds) Difficult if the soil surface is not moist and loose.

What are the advantage and disadvantage of direct seeding?

Some advantages for direct seeding is that they mature faster than direct seeding. Some disadvantages are that direct seeding leaves the plants open to pests like birds and rats. Some advantages to indirect seeding is that you can control how the plant grows and shapes by potting it.

What are the 3 advantages of seeding?

Direct seeding has several advantages:

  • Areas can be revegetated quickly and cheaply.
  • Seeds cost less than seedlings.
  • Seed is easier and cheaper to transport and store than seedlings.
  • Seeding requires less time and labour than seedlings.
  • A mixture of trees, shrubs and groundcovers can be sown at the same time.

What are the disadvantages of transplanting?

Disadvantages of Transplanting:

  • Labour cost is high.
  • Seedlings are exposed to possible injury during handling.
  • Plants tend to grow more slowly than direct seeding because of recovery time after transplanting,

What is the disadvantages of transplanting rice?

Transplanting machines and its maintenance are expensive; so poor farmers cannot afford them (contract hiring of transplanters is available in some countries). Problems in poorly prepared and leveled land, or with poorly designed machines. Need of training on machine operations makes it time consuming and expensive.

What is the reason for transplanting?

You’re supposed to transplant seedlings at an optimal stage of growth. If done at the right time, this process ensures that plants enjoy a higher survival rate and lower incidence of disease. Because all the seedlings are raised in a nursery, you can maintain the purity of your land by de-weeding it beforehand.

What is Rice tillering stage?

The terminal component of the rice tiller is an inflorescence called as panicle. The inflorescence or panicle is borne on the uppermost internode of the culm….Botany of Paddy.

Stage Optimum temperature (°C)
Tillering 25-31
Panicle initiation 15-30
Anthesis 30-33
Ripening 20-25

What is the last stage in the vegetative phase?

The stem begins to lengthen late in the tillering stage and stops growing in height just before panicle initiation about 52 days after sowing, which also signals the end of the vegetative phase.

How many stages are there in rice?

three stages

What are the critical stages?

The critical stages of growth are the early vegetative period (30-40 days after sowing) and tasselling (45-50 days). In the northern parts, two or three irrigation is required to establish the crop before the on set of the monsoon. The optimum moisture range is from the field capacity to 40% of availability.

Why is it important to know the stages of rice growth?

The reproductive phase follows and is generally associated with the formation of the panicle and grain. Germination and emergence are the first stages in the vegetative phase of growth and are important growth events because they provide the basis on which stand or plant population are determined.

What does paddy mean?

(Entry 1 of 2) 1 : rice especially : threshed unmilled rice. 2 : wet land in which rice is grown.

How many days does rice grow?

It may vary a little depending on the growing conditions especially water availability and solar radiation. Normally short duration varieties take 100−120 days, medium duration 120−140 days, and long duration 160 days plus. Most varieties take 60−65 days from panicle initiation to harvest.

The crop should be cut when 80−85% of the grains are straw (i.e., yellow-colored). Generally, the ideal harvest time lies between 130 and 136 days after sowing for late, 113 and 125 for medium, and 110 days for early-maturing varieties.

What are the 3 stages of rice growth?

The growth of the rice plant is divided into three stages:

  • vegetative (germination to panicle initiation);
  • reproductive (panicle initiation to flowering); and.
  • ripening (flowering to mature grain)

How do rice reproduce?

During reproduction, the stigma catches pollen from the stamens and conducts it down to the ovary, where it comes into contact with the ovule and fertilization occurs. The grain is the seed of the rice plant, a fertilized and ripened ovule containing a live embryo capable of germinating to produce a new plant.

Is Rice annual or perennial?

Rice is a type of grass and is the staple food for millions of people across the world. It is an annual crop with an average lifespan of 4 – 8 months.

Are carrots annual or perennial?

Keep in mind that carrots are a biennial crop that is grown as an annual. The first season, carrots grown from seed produce leaves, stems, and tasty roots.

Is coconut annual or perennial?

Coconuts are perennial crops. The sustainability of coconut production depends on both inherent and environmental factors.

How many times a year do coconut trees bear fruit?

On fertile soil, a tall coconut palm tree can yield up to 75 fruits per year, but more often yields less than 30. Given proper care and growing conditions, coconut palms produce their first fruit in six to ten years, taking 15 to 20 years to reach peak production.

Is corn perennial or annual?

Do you have to plant corn every year? Sweet corn is an annual crop with yellow, white, or bi-colored ears. A long, frost-free growing season is necessary. Sweet corn is wind-pollinated, so it should be planted in blocks, rather than in single rows.

Is Coffee annual or perennial?

Coffee is a perennial crop that grows year-round in two forms. There are heavy harvests and light harvests, but there is no off-season.

How many years can a coffee plant live?

100 years